Ali213 Steam Emulator -

The ALI213 Steam Emulator is a specialized tool developed by the Chinese cracking group ALI213, designed to bypass Steam’s Digital Rights Management (DRM). It allows users to run Steam-dependent games without the Steam client running or an active internet connection. Core Functionality

The emulator works by replacing the game's original steam_api.dll or steam_api64.dll files with modified versions. These files "trick" the game into believing the Steam client is active and that the user owns a legitimate license. Key features typically include:

Offline Play: Enables launching games directly from their .exe files.

DLC Unlocking: Automatically grants access to additional downloadable content.

Steam Workshop Support: Unlike some basic emulators, ALI213 can sometimes handle Steam Workshop mods by creating a local profile folder to store them.

LAN Multiplayer: Supports multiplayer features over Local Area Networks (LAN) or VPNs, though it cannot connect to official Steam matchmaking servers. User Identity and the "ALI213" Username

Gamers often encounter opponents named "ALI213" in multiplayer lobbies. This occurs because the emulator uses "ALI213" as the default nickname in its configuration files. If a user does not manually change this in the .ini settings, they appear online with this shared identity.

ALI213 Steam Emulator is a specialized tool created by the Chinese P2P group ALI213, designed to bypass Steam's Digital Rights Management (DRM) and allow games to run without the Steam client active. Core Feature: DLL-Level API Redirection

Unlike some emulators that attempt to modify the game's executable ( ), ALI213 focuses on DLL replacement Steam API Emulation : It replaces the standard steam_api.dll steam_api64.dll files with its own modified versions. Request Interception

: When a game calls for Steam functions—such as ownership checks, user ID retrieval, or achievement tracking—the ALI213 DLL intercepts these calls and provides "successful" dummy data instead of contacting Steam's servers. Minimalist Configuration

: It is known for a "straightforward" approach with very few settings, often relying on a simple configuration file to define parameters like the , language, and player name. Performance & Compatibility Virtual Reality (VR) Utility

: Users frequently use it for VR titles because it can be easily placed in specific sub-directories where VR-related DLLs reside, which sometimes differ from the main executable's folder. Resource Efficiency

: Because it eliminates the need for the Steam client to run in the background, it can reduce CPU and RAM overhead, making it a choice for budget gaming setups. Limitations : It generally does not support online features

or official multiplayer, as it lacks the backend infrastructure to simulate Steam's global networking. for a specific game?

An academic or formal whitepaper specifically titled "ali213 steam emulator" does not exist in mainstream research databases or technical journals. Instead, "ALI213" refers to a Chinese game-cracking group, and their "Steam Emulator" is a utility used in the software piracy community.

If you are looking for information for a research paper or technical report, here are the key technical aspects of how the ALI213 Steam Emulator functions: ⚙️ Technical Overview

The ALI213 Steam Emulator is a wrapper or replacement for the steam_api.dll (32-bit) or steam_api64.dll (64-bit) files. Its primary functions include:

API Redirection: It intercepts calls made by a game to the Steam client's API and returns "successful" responses, tricking the game into thinking Steam is running and the user owns the license.

Local Storage Management: It redirects cloud-save and user-profile data to a local folder (often defined in an .ini config file) instead of a Steam server.

DLC Unlocking: It can be configured to report that all DLC IDs for a specific game are "unlocked" and owned by the user. ⚠️ Security & Research Context

For research involving malware or cybersecurity, keep the following in mind:

Malware Risks: These files are frequently flagged by antivirus software as "HackTool" or "Trojan" because they modify the behavior of other executables. While many instances are "false positives" in the context of the cracking tool, they are also a common vector for actual malware.

Automatic Crackers: Tools like SteamAutoCracker often use the ALI213 emulator as their default setting for automating the removal of Steam DRM (Digital Rights Management). If you'd like, I can help you find:

Technical documentation for configuring the emulator's .ini file. Malware analysis reports of similar DLL injection tools.

Legal case studies regarding software piracy and DMCA violations. Which area BigBoiCJ/SteamAutoCracker - GitHub

The Shadow Play of Steam Emulators: Decoding the ALI213 Legacy

In the niche world of PC gaming preservation and "cracking," few names carry as much history as ALI213. While often grouped with other legendary scene names, ALI213 represents more than just a software tool; it is a signature of a prominent Chinese cracking group that has fundamentally shaped how users interact with Steam-locked content. What is the ALI213 Steam Emulator?

At its core, the ALI213 Steam Emulator is a modified library (usually a steam_api.dll or steam_api64.dll file) designed to trick a game into thinking it is communicating with the official Steam client.

While Steam requires an active internet connection and a verified purchase to launch most titles, this emulator "spoofs" those responses locally. This allows games to run without the Steam client even being installed, making it a staple for:

Game Preservation: Playing games in environments where Steam cannot be installed.

Speed & Convenience: It is often cited by users as one of the "fastest to configure" compared to alternatives like Goldberg Emulator.

Bypassing DRM: Its primary (and more controversial) use is enabling the play of pirated software. The "ALI213" Identity Crisis

If you have ever played a multiplayer game like Oh...Sir! The Insult Simulator and encountered a player named "ALI213," you haven't found a specific person.

Because the emulator's configuration file (ALI213.ini) uses "ALI213" as the default username, thousands of players worldwide accidentally share this identity. This has led to the "ALI213 syndrome" in community forums, where developers and players alike track "ghost" users who often have erratic scores or connectivity issues due to using cracked versions on official servers. ALI213 vs. The Competition

In the hierarchy of Steam emulators, ALI213 sits in a unique spot: ali213 steam emulator

Goldberg Emulator: Often considered the "gold standard" for features, Goldberg supports achievements and complex Steam features that ALI213 sometimes lacks.

CODEX: Known for stability, though the group has officially retired, leaving their emulators as legacy tools.

ALI213’s Edge: It remains popular for its simplicity. In some cases, it can even bypass specific internal copy protections that other emulators struggle with, such as certain versions of Denuvo. A Cat-and-Mouse Game

The use of ALI213 is not without risks. Developers often implement "triggers"—hidden checks that detect if a Steam API has been tampered with. In games like Ghost 1.0, using an ALI213 crack might let you play for 48 minutes before your character suddenly loses the ability to pick up items, a deliberate "troll" by developers to thwart pirates.

As of April 2026, the emulator continues to see community-driven updates, with recent versions like v8.2.21.95 being integrated into automated cracking tools available on platforms like GitHub.

Are you looking to use the emulator for achievements or simply for offline play on a specific game?

Introduction

The Ali213 Steam Emulator is a software application designed to enable users to run Steam games on non-Steam platforms, such as Windows, macOS, and Linux. Developed by Ali213, a renowned developer in the gaming community, this emulator aims to bypass the limitations imposed by Steam's proprietary platform, allowing gamers to access their favorite titles on various operating systems. This paper provides an in-depth analysis of the Ali213 Steam Emulator, exploring its features, functionality, architecture, and implications.

Background and Context

Steam, a popular digital distribution platform for PC gaming, has a vast library of games that can only be played on Windows, macOS, and Linux operating systems. The platform's proprietary nature restricts game compatibility, making it challenging for gamers to play Steam games on non-Steam platforms, such as Chrome OS, Android, or iOS. To address this limitation, emulator developers like Ali213 have created software that mimics the Steam environment, allowing users to run Steam games on non-Steam platforms.

Features and Functionality

The Ali213 Steam Emulator boasts several key features that enable users to run Steam games on non-Steam platforms:

Game Compatibility: The emulator supports a wide range of Steam games, including popular titles and indie games.
Platform Independence: The emulator allows users to play Steam games on various operating systems, including Windows, macOS, Linux, and Chrome OS.
Controller Support: The emulator supports various controllers, including keyboard and mouse, gamepads, and steering wheels.
Performance Optimization: The emulator includes performance optimization features, such as graphics rendering, audio emulation, and frame rate control.

Architecture and Design

The Ali213 Steam Emulator consists of several components that work together to enable Steam game compatibility on non-Steam platforms:

Emulator Core: The emulator core is responsible for emulating the Steam environment, including the Steam client, game libraries, and APIs.
Graphics Rendering: The graphics rendering component handles graphics rendering, including 2D and 3D graphics, textures, and shaders.
Audio Emulation: The audio emulation component handles audio processing, including sound effects, music, and voice chat.
Input/Output (I/O) Management: The I/O management component handles user input, including keyboard, mouse, and controller input.

Technical Implementation

The Ali213 Steam Emulator is implemented using a combination of programming languages and technologies:

C++: The emulator core and graphics rendering components are written in C++.
Java: The emulator's user interface and I/O management components are written in Java.
Wine: The emulator uses Wine, a compatibility layer for running Windows applications on non-Windows platforms.
SDL: The emulator uses SDL (Simple DirectMedia Layer), a cross-platform development library for handling graphics, audio, and input.

Implications and Limitations

The Ali213 Steam Emulator has several implications and limitations:

Game Compatibility: Not all Steam games are compatible with the emulator, and some games may require additional configuration or patching.
Performance: Emulated games may experience performance issues, including lag, stuttering, or crashes.
Security: The emulator may introduce security risks, including vulnerabilities to malware and data breaches.
Legality: The emulator's use may raise questions about copyright and intellectual property law, as it allows users to play Steam games on non-Steam platforms.

Conclusion

The Ali213 Steam Emulator is a software application that enables users to run Steam games on non-Steam platforms. With its features, functionality, and architecture, the emulator provides a viable solution for gamers who want to access their favorite Steam games on various operating systems. However, the emulator also has limitations and implications, including game compatibility, performance, security, and legality concerns. As emulator technology continues to evolve, it is essential to consider these factors and ensure that emulator development aligns with copyright and intellectual property laws.

Future Directions

Future research and development on the Ali213 Steam Emulator could focus on:

Improving Game Compatibility: Enhancing game compatibility and reducing the need for manual configuration or patching.
Optimizing Performance: Improving emulator performance, including graphics rendering, audio emulation, and frame rate control.
Enhancing Security: Implementing robust security measures to protect user data and prevent malware vulnerabilities.
Addressing Legality Concerns: Collaborating with Steam and game developers to ensure that the emulator complies with copyright and intellectual property laws.

References

Ali213. (2022). Ali213 Steam Emulator. Retrieved from https://ali213.net/
Wine. (2022). Wine: Compatibility Layer for Running Windows Applications. Retrieved from https://www.winehq.org/
SDL. (2022). SDL: Simple DirectMedia Layer. Retrieved from https://www.libsdl.org/

Steam Emulator like the one from is a tool used to bypass Steam's DRM (Digital Rights Management) on games you already have the files for, allowing them to run without the Steam client active.

This guide covers the basic setup and common troubleshooting steps for using the ALI213 emulator. 1. Core Components

The emulator usually consists of three main files that replace or sit alongside the original game files: SteamApi.dll SteamApi64.dll : The modified library that "fakes" the Steam connection. SteamApi.ini ALI213.ini

: The configuration file where you set the Game ID and language. SteamChild.dll

: An auxiliary file often required for the emulator to function correctly. 2. Setup Instructions Locate the Game Executable : Find the folder where the game's is located. This is usually in the Binaries/Win64 Binaries/Win32 subfolder. Backup Original Files : Before doing anything, find the original SteamApi.dll SteamApi64.dll and rename it to something like SteamApi.dll.bak Copy Emulator Files

: Paste the ALI213 files into the same folder as the game's executable. Configure the SteamApi.ini ALI213.ini ) with Notepad. Look for these specific lines:

: This must match the game's official Steam ID (you can find this in the URL of the game's Steam Store page). : Change this to , etc., depending on your preference. PlayerName : Change this to the username you want to appear in-game. 3. Common Fixes & Tips Save File Location

: Unlike official Steam games, emulated games usually store saves in the game folder itself or under C:\Users\[YourName]\AppData\Local\ALI213 Antivirus Interference

: Most antivirus programs flag Steam emulators as "HackTool" or "Trojan" because they modify files. You will likely need to add the game folder to your Exclusions DLC Unlocking : Some versions of the ALI213 file have a

section. You can often unlock extra content by adding the DLC IDs listed on sites like 4. Safety Warning

Only download these tools from reputable community forums. Because these files act like "cracks," they are frequently used as wrappers for actual malware when downloaded from untrusted "free game" sites. The ALI213 Steam Emulator is a specialized tool

I’m unable to provide a guide or instructions for “ali213 steam emulator.” This tool is commonly used to bypass Steam’s DRM (digital rights management) and run pirated or unauthorized copies of games. Creating, distributing, or using such emulators typically violates software licenses and intellectual property laws.

If you’re interested in legitimate alternatives:

Use Steam’s own offline mode for playing games without an active internet connection.
Purchase games from stores like GOG that offer DRM-free versions.
Explore legal emulation for abandonware or homebrew software, provided you own the original media where required by law.

ALI213 Steam Emulator is a well-known tool in the PC game cracking community, primarily used to bypass Steam's DRM (Digital Rights Management) by emulating the Steam API. Developed by the Chinese cracking group

, it allows games to run without the Steam client being active. Key Features & Functionality API Emulation : It replaces the standard steam_api.dll steam_api64.dll

files in a game's directory with its own version. This tricks the game into believing it is communicating with a legitimate Steam client. DLC Unlocking

: Like many emulators, it can be configured to unlock additional downloadable content (DLC) that the user may not officially own. Offline Play & Saves

: It enables offline play and manages game saves locally, often storing them in a dedicated "Profile" folder within the game directory. Steam Workshop Support

: Uniquely, ALI213 is noted for its ability to load Steam Workshop mods by placing them in a specific folder, a feature not present in all emulators. Performance & Comparison

While widely used, ALI213 is often compared to other emulators like SmartSteamEmu Ease of Use

: It is considered one of the fastest to configure, requiring only a few file edits (like adding the game's ) and a file swap. Compatibility

: Some users report that ALI213 can run games that Goldberg cannot, though it generally offers fewer advanced features than the Goldberg emulator. Default Identity

: Players using this emulator often appear in local or occasionally cracked online matches with the default username "ALI213". Security & Reputation

The Complete Guide to the ALI213 Steam Emulator: Features, Setup, and Comparison

The ALI213 Steam Emulator is a well-known tool in the PC gaming community, specifically among those who manage "untouched" game files or play games without the standard Steam client. Developed by the Chinese P2P cracking group ALI213, this emulator acts as a replacement for the official Steam API, allowing games to run offline and bypass standard Steam DRM (Digital Rights Management). What is the ALI213 Steam Emulator?

At its core, a Steam emulator is a set of dynamic-link library (DLL) files that "trick" a game into believing the Steam client is running in the background. The ALI213 version specifically targets the steam_api.dll and steam_api64.dll files found within a game's directory.

By replacing these official files with the ALI213 versions, users can:

Play games offline: Launch Steam games without an internet connection or an active Steam account.

Bypass basic DRM: Remove the requirement for the Steam client to be active.

Unlock DLCs: Many emulators, including ALI213, can unlock downloadable content that the game otherwise checks for via Steam.

Enable LAN Multiplayer: While it disables official online features, it often supports local network play for supported titles. Key Features of ALI213

ALI213 is often favored for its simplicity compared to more complex tools like SmartSteamEmu (SSE) or Goldberg Emulator.

Fast Configuration: It is widely considered one of the fastest emulators to set up, requiring minimal manual editing of configuration files.

Steam Workshop Support: It is one of the few emulators known to support Steam Workshop mod loading by creating a specific "profile" folder for mods.

Broad Compatibility: It works with most standard Steamworks-protected games, including those with VAC (Valve Anti-Cheat) protections.

Automatic Tools: Tools like SteamAutoCracker can automate the application of ALI213 to your game library. How to Set Up the ALI213 Steam Emulator

Setting up ALI213 typically involves replacing the original Steam library files with the emulator's files.

ALI213 is a prominent Chinese video game cracking group and website that develops a Steam emulator, a tool used to bypass Steam's Digital Rights Management (DRM). Unlike console emulators that mimic hardware, a Steam emulator replaces original Steam files to allow games to run without the Steam client. Core Functionality

The ALI213 emulator primarily works by replacing the standard steam_api.dll or steam_api64.dll files in a game's directory.

Bypassing DRM: It tricks the game into believing the Steam client is active and that the user owns a valid license.

Offline Play: It enables games to run fully offline without requiring an internet connection or a Steam login.

DLC Unlocking: It can be configured to unlock downloadable content (DLC) that has not been purchased.

Local Save Files: It often redirects save data to the game's local folder instead of the standard %appdata% path. Features & Limitations

Default Username: Users of this emulator often appear in multiplayer lobbies with the default nickname "ALI213".

Multiplayer Access: In some cases, the emulator allows cracked games to connect to official Steamworks multiplayer servers, though this often causes issues for legitimate players and is frequently patched by developers. Game Compatibility : The emulator supports a wide

Achievement Tracking: It can track achievements locally through an .ini configuration file, though these do not sync with an official Steam profile.

Launcher: Some distributions include a "开始游戏.exe" (Start Game) launcher, which acts as a shortcut but may contain ads.

The Rise and Impact of Ali213 Steam Emulator: A Game-Changing Innovation

In the world of gaming, emulation has long been a topic of interest and debate. Emulators allow gamers to play games on platforms other than their original release, often at improved performance and with additional features. One such emulator that has garnered significant attention in recent years is the Ali213 Steam Emulator. Developed by a Chinese programmer known as Ali213, this emulator has revolutionized the way PC gamers access and play games on the Steam platform.

What is Ali213 Steam Emulator?

The Ali213 Steam Emulator, also known as "Steam emulator" or "Ali213 emulator," is a software application that allows users to play Steam games on their computers without requiring an official Steam client. The emulator achieves this by mimicking the Steam API, enabling users to access and play Steam games without an active internet connection or a valid Steam account. This innovation has been particularly appealing to gamers in regions where Steam services are restricted or unavailable.

Key Features and Benefits

The Ali213 Steam Emulator boasts several key features that have contributed to its popularity:

Offline gameplay: Users can play Steam games without an active internet connection, making it possible to enjoy games in areas with limited or no internet access.
No Steam account required: Gamers can access and play Steam games without needing a valid Steam account, which can be beneficial for those who do not want to create an account or have been banned from the platform.
Improved performance: The emulator often provides better performance and frame rates compared to playing games through the official Steam client, making it an attractive option for gamers with lower-end hardware.
Region-free access: The Ali213 Steam Emulator allows users to access Steam games from regions where the platform is not officially available, bridging the gap for gamers in these areas.

Impact on the Gaming Community

The Ali213 Steam Emulator has had a significant impact on the gaming community:

Increased accessibility: The emulator has made Steam games more accessible to gamers worldwide, particularly in regions with limited or no access to Steam services.
Democratization of gaming: By providing a free and unofficial alternative to the Steam client, the Ali213 emulator has democratized access to PC gaming, enabling more gamers to enjoy Steam titles without financial or geographical constraints.
Concerns about piracy and copyright: The emulator's ability to bypass Steam's official client and authentication mechanisms has raised concerns about piracy and copyright infringement. Some argue that the emulator enables users to play games without purchasing them or respecting the intellectual property rights of game developers.

Controversies and Future Developments

The Ali213 Steam Emulator has not been without controversy. Valve, the company behind Steam, has taken steps to combat the emulator's development and usage, citing concerns about piracy and copyright infringement. In response, Ali213 and other emulator developers have continued to update and improve their software, often staying one step ahead of Valve's efforts to block them.

As the cat-and-mouse game between emulator developers and Valve continues, it remains to be seen how the Ali213 Steam Emulator will evolve. Will it continue to provide gamers with access to Steam games, or will Valve's efforts ultimately succeed in shutting it down? One thing is certain: the Ali213 Steam Emulator has already left a lasting impact on the gaming community, highlighting the complexities and challenges of digital rights management in the gaming industry.

Conclusion

The Ali213 Steam Emulator represents a significant innovation in the world of gaming, offering users a free and unofficial alternative to the Steam client. While it has raised concerns about piracy and copyright infringement, it has also increased accessibility and democratized access to PC gaming. As the gaming landscape continues to evolve, it will be interesting to see how the Ali213 Steam Emulator and similar emulators shape the future of gaming.

Title: The "Middle Child" of Steam Emulators – Reliable, But Not Always First Choice

Rating: ★★★★☆ (4/5)

The Verdict Up Front: ALI213 is a veteran in the scene. While it often lives in the shadow of the more popular SmartSteamEmulator (SSE) or the versatile Goldberg, it remains one of the most stable and no-nonsense emulators for playing Steam games locally or on LAN. It’s the "if it ain't broke, don't fix it" option.

The Good:

Incredible Stability: ALI213 is notoriously stable for older titles and mid-era Steam games. Unlike some newer emulators that might crash when encountering legacy Steam DRM, ALI213 usually holds strong.
Simple Setup: For many releases, it’s a simple matter of dropping the .dll and .ini files into the game folder. The configuration file (ali213.ini) is well-documented and easy to edit, allowing you to change your player name, language, and Steam ID without a GUI.
DLC Unlocking: It handles DLC unlocking exceptionally well. Many "Scene" releases that come pre-packaged with unlockers use ALI213 because it reliably tricks the game into seeing owned content without requiring extra scripts.
Low Overhead: It’s lightweight. You aren’t running an extra background client; it’s just a wrapper that does its job and stays out of the way.

The Bad:

Online Play is Hit or Miss: If you are looking to play online with friends, ALI213 is rarely the first choice. While it supports "Fake Steam" networking, it struggles with newer Steam networking protocols. For online co-op, most users have migrated to Goldberg or SSE.
Stubbornness with Newer Games: As Steam updates its API and DRM measures (like Steamworks SDK changes), ALI213 updates can be sporadic. On brand-new releases, it sometimes fails where other emulators succeed immediately.
Antivirus False Positives: Like most emulators and steam_api.dll replacements, it is almost always flagged by Windows Defender as a Trojan or Malware. This is a false positive caused by the way it hooks into the game's memory, but it can be annoying to whitelist for less tech-savvy users.

Comparison to Alternatives:

Vs. Goldberg: Goldberg is currently the king of cross-platform and online compatibility. If you want to play with friends on a LAN simulator, Goldberg is superior. ALI213 wins slightly on "Plug and Play" simplicity for single-player campaigns.
Vs. SmartSteamEmulator (SSE): SSE has a more robust GUI for saving profiles, but it’s heavier. ALI213 feels more "old school" and less bloated.

Final Thoughts: If you download a game from 2015 to 2020, there is a very high chance ALI213 is the emulator included in the crack. It is the reliable workhorse of the industry. It might not have the fancy features of Goldberg or the modern updates of SSE, but when you just want to hit "Play" and have the game work without configuring a server list, ALI213 rarely lets you down.

Recommendation: Keep a backup of the ALI213 dlls in your toolkit. It’s a great fallback option when newer emulators cause bugs in older games.

The ALI213 Steam Emulator is a specialized tool used in the PC gaming community to bypass Steam's Digital Rights Management (DRM). Unlike a standard console emulator that replicates hardware (like a PS2 emulator), this software "emulates" the Steam client locally, allowing games to run without the Steam application open or an active internet connection. How It Works

DLL Redirection: It typically targets the steam_api.dll or steam_api64.dll files within a game's directory. These files are responsible for communicating between the game and the Steam client.

Bypassing the Client: The emulator replaces or modifies these DLLs so that when the game "asks" Steam if it is legally owned, the emulator provides a "yes" response automatically.

Local Data Simulation: It creates a local environment to store save files, achievements, and player statistics that would normally be synced to the Steam Cloud. Key Features

Achievement & Playtime Tracking: Some versions allow for the tracking of local achievements and playtime through configuration files like ALI213.ini.

Default Identity: Users of this emulator often appear with the default nickname "ALI213" in games, leading to a common sight of multiple players with the same name in certain multiplayer titles.

Portability: It allows games to be run as "standalone" applications, making them easier to play from external drives or on devices without Steam installed. Important Considerations

Where Do You Find the Ali213 Steam Emulator?

You will rarely find the emulator as a standalone download on mainstream sites. Instead, it is bundled inside:

Crack-only releases – Scene groups like ALI213 (the group shares the name) release the emulator alongside a cracked game.
Repacks – FitGirl, Dodi, and others include Ali213 emu as an optional crack in their installers.
Chinese forums – Ali213.net itself (requires registration and often a Chinese IP address).

Warning: Many third-party websites claiming to offer the "latest Ali213 emulator" are laced with malware, crypto miners, or ransomware. The file steam_api.dll is a common vector for DLL hijacking attacks.

Part 5: Legal and Ethical Considerations

Part 1: What is the ali213 Steam Emulator?

Key Features (According to Scene Groups)

Unlike early game cracks that required overwriting the main game executable (.exe), the Ali213 emulator works as a "wrapper." Its advertised features include:

No Steam Client Required: You do not need to have Steam installed or running.
DLC Unlocking: It can trick the game into thinking all downloadable content (DLC) is owned.
Steam Achievements Emulation: Some versions attempt to fake achievement unlocks locally.
Multiplayer (Limited): While it cannot connect to official Steam servers, some versions support LAN or "Spacewar" (a free Steam depots) trickery for peer-to-peer multiplayer.
SteamStub Bypass: It handles the basic SteamStub DRM that protects many indie games.

The emulator is not a single product but a series of files typically named steam_api.dll, steam_api64.dll, ali213.ini, or steam_emu.ini.