In League of Legends‘ new PvE game mode Swarm, you and your teammates must defend the Earth from an onslaught of dangerous Primordial monsters that are hell-bent on destroying humanity.

These games have a wide play time range, so make sure you have enough time on your hands when you jump into the action. Swarm has plenty of different mechanics that separate it from regular matches on the Summoner’s Rift, from its WASD control system and the various weaponry that you can equip on your champion to the “bullet heaven” type of gameplay that’ll you get to enjoy as you rip through countless waves of enemies.