$2.99Co-op pick
Chess++
If regular chess has become stale and you're looking for a unique, new challenge, Chess++ is the game for you! Play a game against the AI in a chess board with 3 dimensions, new movesets, and new rules.
Screenshots
From the Steam store
With a new piece, a whole new moveset, and a new dimension, Chess++ is the most big-brain game you'll ever play.
Get started by going through the tutorial. It will teach you the rules and the new moves for each of the pieces. Afterwards, get some practice by playing against the easy CPU. Once you beat that, really challenge yourself with the hard CPU. If you've got a friend willing to play, challenge them as well!
