OpenXOPS is free, open-source, offline FPS(First-person shooter) game. It is based on X operations, a Japanese freeware FPS released by Team MITEI in 2003. Official source code is managed with Subversion (SVN).
game windows games game-engine cpp japanese directx game-development svn subversion directx-programming first-person-shooter directx-9 open-source-game directx9 cpp-programming xops first-person-shooter-game openxops x-operations
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Updated
Aug 2, 2026