It is a time bound game where one needs to find 1 difference between two identical looking boards, filled with cavemen. Once you find a difference between the boards, both boards will refresh to generate a new difference. Find maximum differences within allowed time to get more points. Caveman Board Puzzles, puzzle game, difference game, HTML5 game, kids game, mobile puzzle, observation skills, brain teaser, time-bound game, matching game, visual perception, problem solving, online puzzle, free puzzle game, prehistoric puzzles, clicker game, board game, educational game