“Don’t Mess with Cthulhu”
designed by Yusuke Sato, published by Indie Boards and Cards
Social deduction meets the Lovecraft mythos. A simple game where players are secretly either investigators or a sneaky cultist. Five cards are dealt to each player, take a look at them, and then place them randomly in front of yourself. Try to get players to open Elder Signs (if you are an investigator), or ill omens (if you are a cultist). First side to get all their necessary cards face up wins. So, basically, lie, bluff, cajole, and convince other players to do what you need.
Plays quickly and easily, and fun as well, if a little like other social deduction games. But, theme?