Fully upgrade a weapon

Complete an Artifact Collection

Gather 40 gold ore

Survive the flood

Burn 2 enemies simultaneously

Decipher the Path of the Stars

Finish the Game on Easy Without Changing the Difficulty

Kill 30 Enemies with the Tau Sniper

Find 100 Treasures

Find 80 Treasures

Play in the Swimming Pool on the Cruise Ship

Kill 20 Enemies with Gunfire While Hanging

Successfully Counter all of a Brute's Damage-Giving Attacks