Medal of Honor: Allied Assault (OpenMoHAA)
Games: Medal of Honor: Allied Assault (Windows, 2002) · Medal of Honor: Allied Assault - Spearhead (Windows, 2002) · Medal of Honor: Allied Assault - Breakthrough (Windows, 2003)
OpenMoHAA: an open-source reimplementation of Medal of Honor: Allied Assault and its Spearhead and Breakthrough expansions, built on ioquake3 and the Heavy Metal: F.A.K.K.² SDK, and compatible with the original’s assets, scripts, and multiplayer. There are builds for Windows, Linux, and macOS, ARM included. According to the project, the whole campaign of all three games should work, and multiplayer is almost fully stable, with every official mode, including Spearhead’s Tug-of-War and Breakthrough’s Liberation, and popular mods like Freeze-Tag; you can join OpenMoHAA servers or host your own. It includes every fix from Spearhead 2.15 and Breakthrough 2.40b, and adds bots for offline practice, 4K support with automatic UI scaling, an adjustable field of view, smoother animations, OpenAL sound, demo recording, IPv6, multiple master servers through 333networks, and, on servers, IP bans and packet flood protection, plus many fixes for bugs and exploits in the original. It hasn’t reached 1.0 yet; the latest release is 0.82.1 (August 5, 2025). Its contribution guidelines forbid using AI to generate code.
You needAn installation of your own copy of Medal of Honor: Allied Assault, preferably GOG’s War Chest, which includes both expansions; if it’s the CD release, with the official patches (1.11 for Allied Assault, 2.15 for Spearhead, and 2.40b for Breakthrough). The free demos work too. OpenMoHAA’s files are copied into the game folder. Plus Windows (x64, x86, or ARM64), Linux, or macOS (Apple silicon or Intel).
- How it gets to PC
- Fan reimplementation
- Console
- Microsoft Windows
- Original studio
- 2015, Inc.
- Year
- 2002
- Author
- smallmodel, Tim Angus, …
- Stars
- 869
- Last activity
- 2026-04-23 · 6 months ago
- Latest version
- v0.82.1 · 2025-08-05
- License
- GPL-2.0
- Language
- C
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