Hadal adds a deep, flooded dimension beneath the ocean. Build a Trench Gate below Y 0, step through, and dive: from the sunlit Shallows through the Twilight and the Midnight Zone, down to the Abyss and the Trench. Each depth is darker, stranger and more dangerous than the last.
- 22 biomes, each with its own water colour, plus 36 ruins and a sunken megacity
- Over 50 animated creatures, the Tidefolk people with villages and a Kingdom, and bosses with their own entrances
- 15 guns with 41 attachments in an 8-slot Weapon Workbench
- 10 vehicles, from sea scooters and submarines to an icebreaker, with mounted weapons, gunsights and upgrades
- Diving suits rated for depth, a Dive Station habitat, new ores, foods and building blocks
- Dread: the dark gets to you, with a heartbeat, a closing vignette, and things that notice you
- More than twenty rare secrets, some small, some enormous
- Comfort settings (press H): intensity presets and toggles for flashing, screen shake, loud sounds and every HUD element
Minecraft 1.20.1, Forge 47.4.10 or newer. No other mods required. Needed on both client and server.

