Last night's #boardgames included Dead of Winter. It's a semi-co-op game of killing zombies and dwindling food supplies. Plus you each have a secret objective, and there may be a traitor among you. The theming was strong, and the game's owner did start with a warning that there would be some ethically-problematic decisions along the way. He was not wrong. Fine for us, but not for everyone. FWIW we had a traitor and they won. Too many characters got killed, and our morale dropped to zero.
