Classic FPS game Return to Castle Wolfenstein One of my favourite games and the first online multiplayer I ever played. Return to Castle Wolfenstein is FPS released in 2001. Entertaining single player campaign not too difficult and online multiplayer. You can play Return to Castle Wolfenstein online Punkbuster must be disabled as not supported anymore. There are still people playing online but does feel like bot are filling in the gaps a lot. If you still own the disk version you may want to patch the game to 1.4. I have not tried this yet as I do own Steam version but willing to install disk version should people run into any issues and work out the bugs and share solutions here. But there is a mod RealRTCW is an overhaul mod for critically acclaimed Wolfenstein classic. It features improved visuals, expanded arsenal, rebalanced gunplay and proper modern systems support! And is free. But if you don't own the game is really cheap these days currently...