The Cryochamber is special promo tile that was given to those who purchased Steel Arena at Essen Spiel'16. Cryochamber is a speed II Generation module tile. Just add it to the corresponding pile during setup. It can be placed to the battlefield only as a random tile. When activating this tile cool down any one of your modules. Keep in mind that you still can't use any module more than once during your turn.