Trusted by Families Worldwide - With over 50 million sold, ThinkFun is the world's leader in brain and logic games. Develops critical skills - Builds logic and problem solving skills through fun gameplay. What you get - Invasion of the Cow Snatchers comes with a game grid, 60 challenge cards with solutions, 6 magnetic tokens including a UFO, 4 cows, a bull, 9 walls, 1 silo, 5 crop circles and instructions. Clear instructions – Easy to learn with a clear, high quality instruction manual. You can start playing immediately! Comes with multi-level challenges - Invasion of the Cow Snatchers comes with 60 beginner to expert challenges that become increasingly difficult as you play through them.