A forge glowing inside a rune-lit cavern, floating islands beyond
Free early build · Windows & Mac

SOURCEMANCERS

> describe anything — your AI forges it into the world

A multiplayer open-world survival game where every wall, turret, trap, and spell is a real running program you author by describing what you want. You don't pick a fireball from a menu. You say it, the code appears, and you fork it, tune it, and fight with it.

// free while it's early. co-op & solo · runs on a custom engine · opens in ~1 min first launch.

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Open-world survival· Author items in plain English· Host co-op with friends· Read, fork & remix source· Windows & Mac
The core loop

Describe it. It becomes real. You fight with it.

No coding knowledge needed to play. You talk in plain English; the code appears so you can read it, fork it, and make it yours.

01 · DESCRIBE

Say what you want

"A homing orb that seeks the nearest enemy." "A wall that heals whoever stands behind it." Plain language, typed in the forge.

02 · CONJURE

Your AI writes it

Your words become actual running code: a live program, not a canned effect. Watch it appear, refine it by chatting, reroll for free.

03 · KEEP IT

Bind it to a slot

Freeze the creation into your book and bind it to a hotbar slot. It lands in the shared LIBRARY for anyone in your world to summon.

04 · SURVIVE

Take it into the world

Mine, build, defend, get raided. Your base, your traps, your spellbook: all of it is code you authored. Outbuild what's hunting you.

The vision · concept art

Where Sourcemancers is heading.

We're deep in a full visual overhaul. This is the art direction we're building toward: the world you'll forge, defend, and rewrite.

A floating spellbook streaming glowing code that forms into a conjured creatureconcept art
// describe it, your AI writes the code

Speak it into being

Describe an item, a creature, or a spell in plain English, and your AI writes the real, running program behind it. Watch it take shape at the forge, refine it by chatting, and keep what you love.

Iterating is free. You only spend on what you keep.

A fortress of glowing rune-code walls and arcane turrets at duskconcept art
// every wall, turret and trap is a program

Raise a stronghold of living code

Build, defend, and get raided. Rust-style survival where your walls, turrets, and traps are all real code you authored, and you outbuild and outthink whatever comes for your base.

A colossal rune-carved Law Stone bending reality, rubble orbiting itconcept art
// the endgame: rewrite local physics

Rewrite the laws of the land

Hold territory and carve its rules into a Law Stone: gravity, damage, time. Take someone's ground and their laws stop applying to you. The deepest magic isn't a spell. It's the physics itself.

What makes it different

Every object is source you can read and rewrite.

Most creative games hand you a menu of parts. Sourcemancers hands you the source. Every artifact is portable, readable, and forkable, so the game becomes a place where players teach each other by trading spells.

Your spellbook is source

You don't share a screenshot of your build. You share the source of your fireball, and someone reads it, learns from it, and has their own AI mutate it by the sentence.

Base-and-raid, as code

Rust-like survival: build, defend, get raided. But every turret and trap is a running program, and so is every way someone tries to break in.

Rewrite the laws

Hold territory and rewrite its physics: gravity, damage, time, all carved into attackable Law Stones. Take someone's ground and their rules stop applying to you.

Read, fork, remix

Every creation carries its lineage. Fork a stranger's spell and your AI reauthors it as your own trusted code, so you learn how it works by rebuilding it.

Shared library, live

Host a world, share the address, and everything either of you makes appears in the shared library on both machines. Press L to summon any of it, anytime.

Reputation you can read

Status isn't a rank number. It's a body of work other players open up, study, and build on. The best sourcemancers are the ones everyone forks.

Concept gallery

A world woven from code.

Rune-lit canyons, floating islands, and duels fought with the spells you wrote. A taste of the atmosphere we're chasing.

Devlog

Watch it get built in the open.

Sourcemancers is early and growing fast. Follow the build on YouTube: what's working, what broke, and where it's headed. Every subscriber and player helps fund the next milestone.

Watch the devlog on YouTube New episodes as the game grows. Subscribe to follow along.
Download · free · v0.1.1

Play the early build.

A raw, experimental slice: a real, playable game, not a finished one. It runs on a custom engine, so the very first launch has a couple of extra clicks. Grab a friend and host a world together.

Windows

Sourcemancers-Windows.zip · ~217 MB · Win 10/11 · 64-bit
  • Unzip, then double-click Sourcemancers/run.bat
  • First launch takes ~1 min (it builds a cache once)
  • Summon everything the host makes with zero setup
Download for Windows

macOS

Sourcemancers-Mac.zip · ~154 MB · Apple Silicon & Intel
  • Includes the engine; see the START-HERE file inside
  • Right-click the engine app › Open (unsigned, one time)
  • Import Sourcemancers/project.godot, then press play
Download for macOS
Want to author your own spells? The download lets you play and summon everything a host creates right away. To write brand-new items from scratch you'll also install the free Claude CLI. Full steps are in the START-HERE file inside each download.

Unsigned early build. Windows may warn about Smart App Control; macOS will call it "unidentified." Both are expected for an indie build — the START-HERE file walks you through it safely.

Help build it

This grows with its players.

Sourcemancers is being built in the open, funded by the community around it. Jump in the Discord to trade spells, report what breaks, and shape what gets built next, while it's still tiny.