There's a lot of great Western developed games on the PSX. I think on average they did a better job than on the consoles a generation before. The Tomb Raider games are probably the standout series, the first one is one of the best games on the system. Another big series I didn't see mentioned is GTA. Maybe the old games are more associated with PC? I played them on PSX and really enjoyed them despite all the slowdown. Heart of Darkness is a nice platformer I just remembered. Also, V-Rally 2 was a pretty good racing game.