15 Games That Will Ruin Your Friendships

SPELUNKY

Spelunky is no walk in the park when you’re playing it alone, but when you play the game in co-op, it turns into the most frightening things on the face of this planet. It requires co-ordination between you and your friend on all levels, be it reviving, or platforming, or skill in general. Failure, of course, means you have to do the entire thing all over again, and after the tenth restart, you may start wondering you were even friends with this person in the first place.