Unstable Unicorns: A strategic card game that will destroy your friendships... but in a good way. Unstable Unicorns is a strategic card game about everyone's two favourite things: Destruction and Unicorns. Designed by the creator of TeeTurtle, Unstable Unicorns features a combination of stellar artwork and carefully calibrated gameplay for an infuriatingly magical experience. Unstable Unicorns is great for 2 - 8 players aged 14 and up! Each game lasts approximately 30 - 45 minutes.