Build the World
For people who would rather design a world than just play in one. Icesus is built by volunteers who write its areas, NPCs, quests and stories — and a real player walks through your work within days, not someday. This is where building starts.
Start here
Meet Icesus Creator
See the browser tool, screenshots and the path from an area plan to playtesting and review. Reach player level 25, bring good writing skills and a creative mind, and join us in Discord’s #creator channel.
How to Build a Game World
The builder's craft: designing areas, rooms, NPCs, quests and lore for a living world — and why doing it inside a 31-year-old game beats an empty solo project.
Collaborative Worldbuilding
For game masters and worldbuilders whose settings live in a folder. What changes when several people write into one canon, and what your table skills are worth inside a world that already has players in it.
How to Make a MUD
What it really takes to make a multi-user dungeon: world design, engine choice, content, hosting, and the hardest part — finding players.
FluffOS vs Evennia: Choosing a MUD Engine
Under the hood, for the technically curious. A code-level comparison of the two engines, and why Icesus runs on FluffOS.
Contribute to Icesus
If you would rather build inside a living world than start an empty one, see Contribute to Icesus. And you can build without writing a line of code at all: in-game, player councils claim and rebuild provinces — settlements with working mines, smelteries, farms and shrines. New to the game itself? Start with How to Play a MUD.