The distribution of "PSP Counter-Strike" exists in a legal gray area: Intellectual Property: Use of Valve’s assets (sounds, names) without a license. Custom Firmware (CFW):
The most famous and accessible version is a homebrew game called , developed by user m0skit0 . This is not a port of the original code but a ground-up recreation designed to mimic Counter-Strike 1.6 on the PSP hardware. psp counter strike download