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About Cavernus
A max-security inmate is pulled through a portal onto Cavernus, a rogue planet miles underground and lit only by glowing flora.
- Co-op (beta): friends signed in to PlayDrop can join your world, see each other and see each other's building and mining
- Explore cave forests (beware the fairies), fungal forests, stalagmite caverns and crystal gardens; fish the rivers, dodge giant piranhas and glowing frogs, and hunt steamhorns around scalding geysers
- Find deep shrine lakes under towering waterfalls with rare ores, starmetal, waterstone and an island shrine whose artifact grants blessings — desecrate it and an angry spirit rises
- Defeat the Crystal Warden, see a vision of a Colorado university building a portal machine, and raid the lab to break the barrier to the deep levels
- Recruit inmates and run an automated village that builds, bridges rivers, fletches arrows, makes ladders and builds a Bathhouse — or pause and cancel its plans any time
- Command your army: follow me, go there, hold here, enlist everyone or disband
- Forge swords, armor and bows from iron, steel, cobalt, mithril, starmetal and adamantium; craft a .500 S&W revolver, MP5s, AK-47s, M4A1s, shotguns, miniguns, railguns, RPG-7s and M24 and Barrett .50 sniper rifles
- Storm castles held by skeletons, death knights, necromancers and dark elf rangers and sorcerers
- Fight off US Marshals, the US Army and a ruthless cartel that wants Cavernus for itself; raid Earth's labs, depots, armories, a suburb and a shopping mall
- Side quests: fill the Broker's order, take his contract on a New Zealand beach mansion guarded by Sydney gunmen, win a beach villa, then sell him $100 million of loot and stolen goods to be set for life
- Push through three levels to the Great Crystal, then follow the Hooded One to a possessed New York for the real ending
0 plays · Released October 20, 2026 · v1.7.2
How to play
WASD move, mouse look, left click mine/attack/shoot, right click place/use (aim the scope on sniper rifles). E use/interact, Q weapon wheel (hold), R potion & magic wheel (hold), X army orders wheel (hold), F eat, C first aid, Tab inventory, G crafting, V village, B army, T quests, Z map, ` resource marker. All keys can be changed in Help & settings. Ladders: W/Space climb, Shift down. Flying: Space up, Shift down.
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Making of
Cavernus was uploaded from Claude using PlayDrop Connector (MCP) over 8 versions.
