Here you will find all the information you need to unlock each character + Their respective ability information.
Risk of Rain 2 Guides:
Unlocking the Characters
- Hunter: Make it through 3 teleporters without dying.
- Engineer: Make it through 30 teleporters in total. (This does not have to be done in one game, it's just overall)
- MUL-T: Complete the first area five times (Again, does not have to be done in one run.)
- Artificer: Requires 10 Luna Coins, which drop at a low rate (Higher chance at higher difficulties), and is bought from the newt shop.
- Mercenary: Sacrifice yourself to the obelisk, which requires you to luck out on getting an event message in your chat log saying "A celestial orb has appeared". You then are required to kill the boss before the teleporter is powered up, and a white blue portal will take you to an obelisk and when killing yourself at it, you will unlock the mercenary.