The Phobic Experiment is a feature exclusive to the Hallowed Nights event in Don't Starve Together. It can be conducted at the Mad Scientist Lab, using Frog Legs and a Gold Nugget, and depleting 10 for the player. The experiment has a 66% chance to result in a Brew of Phobic Abatement and a 33% to result in a Brew of Phobic Abrogation.
Consuming the Brews protects the players from Sanity loss caused by totally normal bats spawned by chopping Trees or opening Chests for a limited period of time. The small Brew's effects last 4 minutes, while the large Brew's effects last 6 minutes. Both of them can also be used as Fire Fuel.
- The Mad Scientist Lab and all related craftable Items were introduced to the Hallowed Nights event in 2018.