The Circle Of Slaughter is another challenging game mode which unlocks after the timer ends. In Circle Of Slaughter, you will need to survive against waves of enemies for as long as you can! 

You can find this feature in the Mode Selection just next to Tower Of Terror.

Currently, there are only two (2) levels in this mode, but there will be more to be added soon! What’s great is that there's no entrance fee, so you can keep playing this challenge as many times as you want.

Survive many waves to get higher chances to win Gear and Mods!