Sell a tower with S, upgrade tower range with W, upgrade shooting rate with E and upgrade tower damage with Q.
This is an engaging tower defense game that you can enjoy here on CrazyGames in your browser, free of charge. This fun action game is built with Flash to run flawlessly in most browsers. Onslaught has been played by 11,705 people and has received a rating of 7.5 out of 10 by 131 people. Did you like playing this game? Then also play our other tower defense games like Pokemon Tower Defense and Kingdom Rush Frontiers.