- Fully playable with keyboard+mouse or gamepad.
- Play as a "head in a mech" harvested from the neck of everyone's favorite Space Hydra.
- Roguelite catacombs that evolve and expand with each of your successes.
- 9 starting mechs to choose from with a wide range of abilities: time control, shot magnetism, perk randomization, and more.
- 5 difficulty levels ranging from "Relatively Easy" to "Nigh Impossible."
- 350+ items, including active weapons, one time use consumables, and passive upgrades.
- 150+ regular enemies, 10+ minibosses, and 20+ epic bosses.
- 500+ rooms to explore, including the special condemned survival rooms.
- Level up during each run through the perk system which allows for varied build diversity.
- Buy upgrades from a variety of shops.
- Secrets! Among them "incredibilities" that massively change the way the game plays.
- Over-the-top mod support. Detailed wiki: create enemies, items, weapons, and rooms.