Sdk toolchains libraries

https://github.com/philosophofee/SBSPSS - The source code repository for the PlayStation 1 game, SpongeBob SquarePants: SuperSponge

https://github.com/dizzy2003/MuckyFoot-UrbanChaos/tree/master/fallen/PSXENG - MuckyFoot's 1996 Urban Chaos PC, PSX and maybe DC sources

https://archive.org/details/warcraftIIsourcecodePSX - Blizzard's 1997 game Warcraft II PSX source code

https://archive.org/details/ReVoltXboxAndPCSourceCode - Acclaim's Re-Volt source code, PC/Xbox version but some PSX files remain in the archive