Loader: The Thunderdome

 is a challenge in Risk of Rain 2. It is completed as by killing 3 other Loaders in the Bulwark's Ambry.

Tips

 * Play as and head to the Sky Meadow, inputting the code for the.
 * Because one Loader Umbra will spawn for every time the is interacted with, except for the last interaction, simply kill all 3 Loader Umbrae while completing the Trial.
 * For more detailed tips on surviving this artifact, refer to the Vengeance section.
 * Player should avoid any items that can kill enemies on their own, such as Unstable Tesla Coil, to make sure that something else won't accidentally kill Umbra.