The Secret of Tetrapylae is an engaging unblocked game that you can play on AvioGames.com directly in your browser. The Secret of Tetrapylae has been played by dozens of people and has received a rating of 61 out of 100 by 6 votes. The game is built with HTML5 to run fast in all modern browsers. One of the many advantages about playing The Secret of Tetrapylae on Avio Games is that it is available in full-screen mode to get the full experience. If you liked it, also play our other adventure games or The Secret of the Necromancer and Diggy 2.