First Class Trouble, a social-deduction party game by Invisible Walls, is free to play on Steam for a limited window this weekend, giving fans of games like Among Us and Peak a chance to try a lesser-known title in the genre. The offer is aimed at drawing new players into a game that has stayed relatively under the radar despite offering the same blend of cooperation, deception and betrayal that has made social-deduction games hugely popular.

Set aboard a luxurious intergalactic cruise ship in the midst of a disaster, the game splits players into Residents and Personoids, each with opposing goals: Residents must work together to identify and root out the Personoids, while Personoids can lie, sabotage and eliminate suspicious players from within. Matches support between four and 12 players and use proximity voice chat to heighten the tension and paranoia. The free trial runs on Steam through 6 September.