I recently discovered a really neat RPG called paranoia. The setting is in a dystopian future (big brother is watching you 1984 etc) in which everything is run by a supreme computer known only as THE COMPUTER. The whole game is based around the premise that everyone including you is a traitor and your out to prove they are traitors before you get caught. As the source book states:
"Precisely. Dead traitors cannot testify to their own innocence, or to your guilt. It is convenient to be the last Troubleshooter on your team left alive. The good news is, Troubleshooters routinely get shot, stabbed, incinerated, mangled, poisoned, blown to bits, and occasionally stapled, so you have many opportunities to ensure your teammates meet their just end. Stay alert! Trust no one! Keep your laser handy! "The tone of the game is strictly tongue in cheek humorous and its very rules light. Most of the book details flavor more than charts and tables. It outlines goals and how to make a character and how to go bout the game but in paranoia "rules lawyering" is actually a punishable offense. As with most other violations in this game the penalty is summery execution. Each player gets a number of clones and can purchase more later. Ive just given the game a cursory look but it looks like a lot of fun for a less serious game that involves more role playing than roll playing.