City Blocks is a match-3 puzzle game. Strategically place new buildings and upgrade them to build the largest possible city before you run out of space. brain game, match 3, puzzle game, city builder, strategy game, relaxing game, 3D puzzle, match-3 puzzle, city building, logic puzzle, mobile game, addictive game, space management, upgrade, buildings, city development, casual game, brain training, problem solving, free game