Malignus
Launches 12 November 2026 · PC
A dungeon colony sim where you play the dungeon itself: its Boss, its minions and the beasts in its caves. Dig out halls, wire deadly traps, and raid the world above for treasure. Then hold your hoard against the heroes who come to take it back. Play alone or in 2–4 player co-op.
Story
You are the dungeon. Inspired by Dungeon Keeper and RimWorld. Your Boss rules from the throne. Your minions dig the halls, haul the loot and guard the prisoners, and they have opinions about all of it. Your caves fill with creatures to tame or eat. Raid the settlements above for treasure, then hold it against the adventurers who come to take it back. Rule together. Build one shared dungeon in 2–4 player co-op. Carve out your dungeon. Dig through solid rock, shape rooms, and fill them with workshops, beds, thrones, altars and traps. Command six monster races. Goblins, kobolds, orcs, gnolls, bugbears and ogres each bring their own strengths. Manage a dungeon full of personalities. Dozens of traits, grumbles and breakdowns mean your minions won't always behave. Turn your halls into a deathtrap. Dart throwers, spinning blades, flamethrowers, gas, electric coils and webs. Wire them to pressure plates, tripwires, sensors, levers and timers. Hold what you stole. Invasions grow larger and deadlier, with 6 adventurer races, 10 classes and more than 40 traits. Keep plenty of prisoners. Chain up the survivors and interrogate them for secrets. Your minions expect a proper dungeon...
Gameplay
You are the dungeon. Inspired by Dungeon Keeper and RimWorld. Your Boss rules from the throne. Your minions dig the halls, haul the loot and guard the prisoners, and they have opinions about all of it. Your caves fill with creatures to tame or eat. Raid the settlements above for treasure, then hold it against the adventurers who come to take it back. Rule together. Build one shared dungeon in 2–4 player co-op. Carve out your dungeon. Dig through solid rock, shape rooms, and fill them with workshops, beds, thrones, altars and traps. Command six monster races. Goblins, kobolds, orcs, gnolls, bugbears and ogres each bring their own strengths. Manage a dungeon full of personalities. Dozens of traits, grumbles and breakdowns mean your minions won't always behave. Turn your halls into a deathtrap. Dart throwers, spinning blades, flamethrowers, gas, electric coils and webs. Wire them to pressure plates, tripwires, sensors, levers and timers. Hold what you stole. Invasions grow larger and deadlier, with 6 adventurer races, 10 classes and more than 40 traits. Keep plenty of prisoners. Chain up the survivors and interrogate them for secrets. Your minions expect a proper dungeon to have captives. Raid the world above. Send your minions across the overworld, command every raid in real time, and face a world that remembers what you did. Choose your Boss. Rule with one of...
Features
- Single-player
- Multi-player
- Co-op
- Online Co-op
- Family Sharing
Release details
Malignus is developed by Mossbomb. Malignus launches on Thursday, 12 November 2026 on PC. This date comes from Steam and was last checked on 6 November 2026.
Frequently asked questions
When does Malignus release?
Malignus launches on 12 November 2026.
Which platforms is Malignus on?
Malignus is on PC.
Who makes Malignus?
Malignus is developed by Mossbomb.