Open Poseidon EngineCommunity continuation of the Operation Flashpoint and Arma: Cold War Assault engine with modern rendering, physics, and terrain editing, requiring original game data.
Community continuation of the Operation Flashpoint and Arma: Cold War Assault engine with modern rendering, physics, and terrain editing, requiring original game data.
Open Poseidon Engine extends the engine used by Operation Flashpoint and Arma Cold War Assault, requiring the user’s original game data. Its Windows-focused builds provide updated rendering, streamed whole-Earth terrain, weather effects and terrain editing. Experimental mission support extends to additional Arma games, but compatibility remains incomplete and their installed content is required.
Open Poseidon Engine README · Reviewed 2026-10-29
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Repository created
2026-10-05
Repository push
2026-10-25
2026-10-05Repository push
2026-10-25
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