This free online game was built with HTML5. It runs on Chrome, Firefox, Opera, Safari or Internet Explorer 9 or higher. Play Holly's Tic Tac Toe unblocked on any device. Holly's Tic Tac Toe online is optimized for use on PC, Android and iOS devices, including tablets and mobile phones. This game runs directly in your browser - no downloads, no registration, no flash and no plugins are needed to play.