the interloper

A one-page TTRPG inspired by John Carpenter's The Thing. Watch your back, because you never know who your real friends are. 

the interloper can be played in person with little more than a sheet of paper or dry-erase map and a stack of index cards. It's also well suited for online play where you can make breakout groups for people who go off on their own or in small groups - anywhere that private messaging is simple. You could even play just on your phones through text messaging.