The Terraria 1.4.3 update introduced a crossover between Terraria and Don't Starve that added features from Don't Starve: Together into Terraria. The update allows players to explore The Constant Biome and obtain Chester in Terraria. The Eye Bone has a 30% chance of dropping from Deerclops when slain. Just like Don't Starve, hold the Eye Bone in your inventory to gain Chester as a follower.