Terraria was really fun with friends. Had a house with rooms where NPC's stayed, a mushroom farm, underground mushroom farm, storage area, a 1 way elevator to hell (which way do you think it goes?), and a boss killing platform. Set up a dedicated server on my computer where me and 3 friends played every night. Good times only lasted 2 weeks, as we were able to get most of the stuff in the game. Then it just got boring. What was a fun, creative, yet had some elements of RPG (items and grinding), turned into a farmville type game. After a certain level, all you do is dig for crap.