Your Game. Your Rules. Ship It.
Don’t Panic: Mostly Modular works with the language you already know, fills the gaps with AI, and gets out of your way.
What You Get

Build Games Your Way
This isn’t a switch with two positions. It’s a slider. Bring as much or as little as you want. Your skills, your workflow, your call. The engine adapts. You don’t.

Ship in Days, Not Months
Prototypes should be fast. Ideas should be testable. With MM, you go from concept to playable in days. Spend your time making it good, not just making it work.

Write It in Whatever Language You Want
Rust, C#, Go, Python, JavaScript. Pick the one you actually know. No learning a proprietary scripting language just to make a rectangle move. Just write code.

AI That Knows the Engine
mm-assist is baked in. Not bolted on. It knows the codebase, the APIs, the patterns. When you’re stuck at midnight wondering why your collision is backwards, it’s there.

See It Change Instantly
Hot reload means you edit, save, and watch it update in real time. No restart. No waiting. No breaking your flow to see if a number changed. Just build.

Build Once, Use Everywhere
The plugin system is how you stop solving the same problems twice. Build a camera controller, a save system, a HUD. Plug it into the next game. Done.

Free. Open Source. For Real.
No subscription. No per-seat pricing. No “basic plan” that hides all the useful stuff. MM is free now and free forever. Fork it, ship it, do whatever you want.
Games Built With MM
These are what we’re building toward. Real games. Real code. MM doing the heavy lifting.
Orbit Ball — Spin. Dodge. Don’t Die.
You’re a ball with one job: orbit the planet without hitting anything trying to kill you. The physics feel tight and satisfying, and building that in MM took about a weekend.


Prism Break — Light Bends. So Does Your Brain.
Redirect light beams through crystals to hit the targets. Sounds simple. Gets weird fast. The whole puzzle system was built with MM’s plugin architecture, start to finish.


Starfield Run — Speed Doesn’t Wait for You.
It keeps getting faster. You keep weaving. Eventually something wins. The endless runner loop was up and running in MM in under two days, hot reload the whole way.


Fleet Command — Territory Is Won One Move at a Time.
Manage your fleet, pick your battles, expand across the star map. The strategy layer that took weeks in other engines came together in MM because the state management just works.


Deep Space — Something Out There. Find It.
An alien station, a missing beacon, and a lot of dark hallways between you and it. The world-building tools in MM let us build the whole environment modularly, piece by piece.


Ready to Build?
Download is free. Always will be. Docs are there when you need them. The only thing left is your idea.
