Starmourn is a free science fiction MUD

The Starmourn sector is a post-Earth space adventure where alien races unit against the ever-present Ishvana threat. Explore a fully original universe and forge your legacy. The stars await you, spacer.

Sector manifest

Launched
Dec 2018
Price
Free to play
Playable races
14
Classes
5
Joinable factions
3
Hacking
Every class
Level cap
75
Plays in
Browser, Mobile
Direct connect
port 3000
Community
Discord, Reddit, Wiki

Wetwiring cures you, so you can focus more on the fight.

Starmourn's healing system requires no curatives or potions. Wetwiring is the colloquial name for a network of microscopic machinery that runs through your character's body and cures afflictions on a cycle.

In a fight, damage lands on five key subsystems: Muscular, Internal, Sensory, Mind, and Wetwiring. Your main focus is tracking your subsystem statuses, restoring them when you can, and knowing when to run from the fight. Taking too much system damage can result in afflictions, and you'll have to MEND or REGENERATE to resolve them.

Learn more about how wetwiring works >

Five Wetwiring Subsystems

No curatives or potions

The five wetwiring systems and the sepsis feedback loop Muscular, Internal, Sensory, Mind and Wetwiring sit in a row. Arrows labelled sepsis run from Internal into Muscular and Sensory, showing damage feeding between systems over time. MUSCULAR INTERNAL SENSORY MIND WETWIRING STACK AFFLICTIONS BY DAMAGING SUBSYSTEMS Gained Affliction: SEPSIS feeds damage into muscular and sensory MEND RESISTANCE repeat mends on one system have diminishing returns until failure or a regen break

Diagram of the documented mechanic. Sepsis is the internal system's feedback affliction. Mend resistance, and the balance every mend costs, are why spamming a mend is the wrong instinct.

Directory 3,1 · example session OPs 106/140 at start
LOOK
Directory list of 3,1
ICE/
@antivirus
@honeypot
Routes/
north
west
[106/140 s]

INFECT ANTIVIRUS
UseSync(3.00)
Infect.Result("antivirus", 11)
[99/140 *]
OpsLoss(3,@antivirus)
[96/140 s]

OVERWRITE ANTIVIRUS
Load("Overwrite self-replicating_antivirus", 300)
[92/140 *]
OpsLoss(4,@antivirus)
Overwrite.Result("antivirus", 24)
antivirus.Delete()
PasswordUpdate("D") -> Display($pass) -> DE*****
An example session from the original hacking guide, with its notes removed. Some types of antivirus drop one character of the password. Enter the password, or your best guess at it, at the grid's processing array to unlock what the grid protects.

Hacking is a unique skill with powerful rewards

Hacking is a crucial skill in the Starmourn sector for accessing locked areas, embezzling bonus marks, and more! Find a terminal, leave your physical body behind, and enter the grid as a virus.

The grid's map is generated anew with each hack and gets revealed one circuit at a time as you move, and the goal of the hack is to uncover a secret password. Fighting ICE (Intrusion Countermeasure Electronics) like antiviruses, firewalls, scanners, honeypots, and glitches will reveal letters in the password if you defeat their unique behaviors.

There is no Wetwiring in the grid. Your health is called ops, and your attacks are unique to the Hacking skill tree which you level up by hacking increasingly challenging grids.

Since Crew Hacking arrived in May 2026, a crew of spacers can breach one grid together with: HACK CREW OPEN <terminal>

Read the hacking guide

Pilot a fleet of starships you built

Starmourn's starship classes range from zippy little interceptors to dangerous battleships and destroyers to massive superhaulers. You outfit the ship yourself in the shipforge with weapons and components to maximize your output, then team up with another player to mod and amplify it even further.

Space exploration is powerfully built out with unique PvE, PvP, and non-combatant content to explore. Take to the stars and fight unique PvE incursions, defend your Faction in PvP conflict events like Cosmpiercers, destroy Pirate refineries, and more!

If guns and lasers aren't your thing, the space economy is a massively lucrative venture. Collect gaseous minerals and crush asteroids to refine raw materials into finished products, or blow up massive asteroids for a big boon in marks and prestige. Once you earn enough marks, build your own refineries and defend your title as a Tycoon of Industry.

In addition to Habitations, your starship serves as a base of operations and home on jets. Outfit each ship with customizable layouts, room descriptions, and decor to make them your own.

Fleet Mining shipped in May 2026: mine with other players using a mothership with ore crushers or gas compressors fed by smaller harvester ships.

Learn more: Starship basics   The economy

Janilyn, the Shen capital on Kovalar: towers around a landing platform with craft on approach
Janilyn, the Shen capital on Kovalar, known as an interstellar transport hub.

Still shipping

Starmourn launched in December 2018 and has been in Legacy Mode since July 2023, which means it is fully volunteer-run. Features keep landing anyway.

All news ›

The Iron Carnival has docked at Omni Station!

August 1, 2026

Following the success of our December inter-game IRE event, we are so excited to announce our next event installment which will run through September! Celebrate good times here in Starmourn as you collaborate with players from across the Iron Realms to open the Carnival and experience all it has to offer.

New feature: Crew Hacking! #HackTheGrid

May 20, 2026

Elan is on FIRE and has knocked out another massively requested feature: Crew Hacking. For all hackable terminals, a crew of hackers can now jack into one shared grid and breach it together. Assemble your crew and dive into the grid today! Crew Hacking Command Syntax: How it works: One more change, for now. Hacking…

New Starmourn System: Fleet Mining

May 17, 2026

Everyone, please gather for a round of applause for Elan, our amazing coder!! He has just introduced a system that solves a request players have been making almost since launch: “Let us mine space rock together!” Fleet Mining officially introduces a multi-ship cooperative mining activity to Starmourn. When piloting an unarmed “mothership” equipped with ore-crusher…

Join the Team! Recruiting Storytellers for the Starmourn Sector

March 5, 2026

Open call for Storyteller applications! The Storyteller role for Starmourn has grown a lot and now offers much more flexibility for the creative-minded spacers who choose to rise to the occasion. We are looking for folks who would like to peak behind the curtain and run events, create areas, puppet NPCs and the like. I…

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