I've got some singleplayer CDs, DVDs and cases and I've got to say… the games in them are superior to the ones everyone knows about.
I even found a superior version for Max Payne, it's called El Matador.
I've also got Penumbra Overture and Full Spectrum Warrior sitting besides me.
I think I'll go play Zax the Alien Hunter, see if it still holds up.