Orcs Must Die: Unchained – Chaos Trials Allow Players to Survive & be Rewarded

Chaos Trials have launched into Orcs Must Die! Unchained. During Survival, Sabotage, Endless and Weekly Challenge modes, players have a chance to have a chaos key drop. Teams of 1-3 players can use the key to push back the trial tier in order to have the key upgraded to a higher difficulty. Each victory offers a reward chest and more skulls dependent upon how far the team progresses. Players can also keep track of their progress against others via leaderboards.