Combine Checkers, Chess, and Tic-Tac-Toe with Gridopolis Hot Toy Reviews September 30, 2019 Play in 3D with Gridopolis, the build-and-play strategy game with a board that evolves mid-game. The post Combine Checkers, Chess, and Tic-Tac-Toe with Gridopolis appeared first on The Toy Insider.