This doesn't happen with most games but seems like for me, certain games or certain types of games make my palms and consequently, my controllers a watery mess.
Just recently, I started playing Thumper and Christ man, it's bad, it's really bad. I don't mean the game, the game is awesome, I mean my hands are squirting water all over the place!
For me usually, fighting games are almost guaranteed to give me nasty-ass sweaty-ass palms and I think that's because I'm not a competitive guy and fighting games automatically put me in a situation I'm not comfortable in.
Are there games that seem to especially give you sweaty palms? Or maybe you don't know what the hell I'm talking about 'cause you're a cold-blooded video game assassin?