The world is a perfect place. Your friend, The Computer, says so. Your work is perfectly suited to you. Your friend, The Computer, tailored you and your clones to be happy with your work. The [redacted for security reasons] The Computer, says so. The mutant traitors are trying to spoil everything. They [redacted for security reasons] so. Citizen, you have been promoted to Red security level to become a trouble shooter and deal with [redacted for security reasons]. Trust no one, keep your laser handy!

Paranoia is the RPG that turned RPGs on their head. Instead of co-operating, players actively try to betray, cheat and lie their way to the top of the heap.