CSPSP
CSPSP is a homebrew game for the Sony PSP, created in 2006 and updated through 2011. It is a 2d top-down shooter heavily based on Counter-Strike, with similar round-based team gameplay and weapon selection. It features fully multiplayer gameplay via community-hosted servers.
The game is unfortunately mostly dead now, but for those who are nostalgic, feel free to try it.
Playing
CSPSP should run on any PSP with a custom firmware; simply copy the game into ms0:/PSP/GAME/ like any other homebrew. The most recent v1.92b release has some very minor fixes to get multiplayer working again, though there probably won't be any other players or servers online.
Website / master server: https://cspsp.appspot.com
CSPSP Server application: https://github.com/kevinbchen/cspspserver
Source: https://github.com/kevinbchen/cspsp.
