ENTRIES OPEN Submit by Fri 18 Sep · noon ET. Live Sat 19 Sep · 3 PM ET.Enter ↗
OTHER GAMES
Other Games campaign illustration of a world waiting to be builtCAMPAIGN ART • NOT GAMEPLAY

3 GAMES / SAT 19 SEP / 3 PM ET

YOUR GAME.
OUR LIVE AUDIENCE.

We’re choosing 3 games to play together this Saturday.
New to MML? Start small. We’ll help shortlisted creators test in-world.

You don’t need a creator role. We have one—and handle placement for invited tests.

THE SHOWCASESAT 19 SEP · 3 PM ET
SUBMISSION CUTOFFFRI 18 SEP · NOON ET
Add to calendar ↗

WATCH FIRST / THEN TRY IT

FROM “IDK”
TO YOUR FIRST GAME.

Starter file → agent → MML Editor → test → submit.

Quick cut of real screen captures. Claude writes a tiny example; we paste and play it in MML Editor. The final submission is a local demonstration, not a live competition entry. This review site does not collect submissions yet.

SKIP THE WALL OF TEXT

GOT AN AGENT?
GIVE IT THIS.

One file. One prompt. Make your first playable idea.

01 / DOWNLOAD

Your brief + rules + starter code. One file.

Get the agent starter ↓
02 / ATTACH + PASTE

Attach the file in your AI coding tool. Copy this prompt into the same conversation.

03 / MAKE IT YOURS

Answer up to 3 quick questions—or say “pick for me”. Build one fun interaction first.

Prefer to build by hand? ↗
See the prompt

Read the attached OTHER-GAMES-START.md and help me make an MML creation for Other Games. Ask me up to 3 short questions in one message, with a “pick for me” option. Then build the smallest working version, show me how to preview it, and iterate. Use the brief and official docs, be honest about what you tested, and do not publish or submit anything without me asking.

Use a tool that accepts files or paste the Markdown as text. Tools and coding ability vary. Source checking is not an Otherside rehearsal.

FIRST TIME? YOU’RE GOOD.

What is MML, and where do I put the code?

MML describes interactive 3D objects using text. Open MML Editor, sign in, and choose Create project. In your new project, paste the complete source into the CODE pane. Use PLAY to click and test it. On a wide screen, EDIT and PLAY appear side by side.

Do I need to know how to code?

You can start with an idea. Download the Markdown starter below, attach it to your coding agent, and use the prompt. Ask for one small playable rule first. If something breaks, send your agent the error and a screenshot, then test the fix.

How do I know it works?

Play one complete round, trigger the win, and reset. For shared games, open a second Play client on the same running document and check that both see changes. Editor testing comes first; invited creators then test placement and gameplay with our team in Otherside.

Do I need an Otherside creator role or my own world?

No creator or director role is required to submit. We have creator access and handle placement for invited tests. Normal Otherside attendee access still applies. Tell us what you need help testing.

What do I submit—and does everyone get featured?

Your source file, editor link, dimensions, how to play/reset, credits, and known issues. A short demo link helps. We invite favourites to test and select only 3 games for Saturday’s audience. Final choices belong to the Other Games team. Check the timeline for the submission cutoff; entries are not open on this review site.

YOU BRING THE GAME. WE BRING THE ACCESS.

HERE’S HOW
IT WORKS.

Build a game → submit it → our favourites are invited to test → the team selects 3 games for a live audience. Honey B and Dinopawnz Koda stickers decorate the flow.
3

games. A real audience.

We have the creator role to place your MML in Otherside. If your game is shortlisted, we’ll invite you to test it with us and help work through placement and fixes.

No creator or director role needed to enter. You can start in the browser editor. Normal player access still applies if you join us in-world.

Our team chooses the final 3 winning builds after testing. Fun gameplay comes first. Looks, audience experience and readiness count too.

Submitting does not guarantee an invite or selection. All decisions are made by the Other Games team.

Show us your game ↗
  1. Build a playable MML game.
  2. Submit your source and idea.
  3. We invite our favourites to test.
  4. Our team selects 3 games for the live audience.

THIS WEEK / EASTERN TIME

BUILD NOW.
PLAY SATURDAY.

  1. NOW → FRIDAYBuild + submit

    Submission cutoff:
    Fri 18 Sep · noon ET

  2. FRIDAY / BY INVITETest with us

    Shortlist, placement and fixes.
    We arrange your test time.

  3. SAT 19 SEP · 3 PM ET3 games go live

    Final team picks.
    Everyone comes to play.

Submit by Friday noon ET. Shortlisted creators receive a test invitation; test times are arranged directly. Final selection is at the team’s discretion.

YOUR TURN

GOT A GAME?
LET’S SEE IT.

Three short steps: your idea, your build, and credits. Tell us what works and where you need help.

Only 3 final selections.
Our team reviews the games, invites favourites to test, then makes the final picks.

Step 1 of 3

Have your MML source and editor link ready. No creator role required.

About you and your creation
Give us something to test
Credit and permission

You’ll get a private receipt and revision link. Keep it safe; no email is sent automatically.

YOUR NEXT MOVE

JUST HIT SUBMIT.

Honey B’s Koda · campaign animation

Submit your game ↗

AESTHETICS ARE A PLUS

MAKE IT FUN.
THEN MAKE IT YOURS.

Start with a playable idea. When it works, scenery, lighting and a clear visual identity can make it memorable.

Actual BOG Flag browser build with mangrove trees, roots and moss around its play routes
BOG / roots, moss + routesActual native browser screenshot · Otherside test pending
Actual Bulldog Luster decorated arena with gold architecture and dark floors
LUSTER / gold + dark floorsDecoration reference only · browser inspection lighting

These show our recent decorated builds, not required templates or entrant submissions. The Bulldog reference is here for aesthetics only. Source assets remain credited to their creators; no private model pack is included in the starter download.

GO DEEPER WHEN YOU’RE READY

EXAMPLES. RULES.
THE EXTRA STUFF.

Watch real gameplay and browser demos

SEE THE IDEA IN ACTION

LESS EXPLAINING.
MORE PLAYING.

Hot Potato / event gameplay

Actual Other Games event footage, using the existing approved captioned clip. An advanced gameplay reference; the starter kit does not contain this full game.

Saints & Serpents / browser prototype

Actual isolated MML browser demo: registration, rolling and shared progress. Camera shortcuts and local host steps are rehearsal tools. Otherside traversal and crowd performance remain unverified.

Find a game mechanic to remix

ONE GOOD RULE. MAKE IT YOURS.

SMALL SYSTEMS.
BIG POSSIBILITIES.

Explore the mechanics ↗

Build a complete round around one memorable mechanic. These are directions to remix, not finished game templates. Keep the basic starter files below for learning MML.

Hot Potato

Pass a cursed object before the fuse runs out. Track the holder, countdown, elimination and last player standing.

Timers + eligibility

Snakes & Ladders

Roll together, climb, fall and race to the finish. Give every player a position and a clear standings board.

Turns + progress

Bank or Risk

Collect points, bank them safely, or risk your haul for more. Make the decision visible to spectators.

Scores + trade-offs
A leaderboard is a useful shared ingredient. Start with player registration, a match scoreboard and a reliable reset. Persistent scores across sessions need verified identity and durable storage; those services are not included in this kit.
Read rules, remix ideas and testing traps ↗
Get small MML examples, source code and docs

01 / YOUR STARTING POINT

MAKE IT YOURS.

Download creator kit ↓

Three small, editable examples. Start with one, change it, then go somewhere other.

Actual MML browser render of starter 01
Watch the 4-second demo ▷

The gathering place

A compact pavilion with a visible floor, clear entrance and scale markers. Learn placement and proportion.

Actual MML browser render of starter 02
Watch the 4-second demo ▷

The colour signal

Click a signal to change its colour for everyone connected. Learn a small, shared interaction.

Actual MML browser render of starter 03
Watch the 4-second demo ▷

Three lights

Switch on three lights together, then reset. Learn completion state without a large game engine.

Original starter code by Codex for Honey B. Browser verification and world-test status are listed in the kit. These examples are learning tools, not crowd-capacity guarantees.

Your first five minutes
  1. Open MML Editor and create a document.
  2. Download a starter, open it as text and paste the complete source into the editor.
  3. Change a colour, a label or the position of one object. Inspect it at player height.
  4. For an interactive starter, connect a second browser client to the same running document and check shared changes.
  5. Save/export your source. Submit it here with the editor link and a short explanation.

Keep the required editor/service running for live interactive tests. Do not overwrite a project already hosting a game.

ADVANCED REFERENCE

Borrow a mechanic, then simplify.

Saints & Serpents explores simultaneous rolls, player registration and visible progress. The recent registration lab explores prompts and per-player counters. Our guide explains what transfers, what still needs testing, and why these full builds are not beginner templates.

See the reference notes ↗
Read sizing, testing and technical guidance

02 / THE CREATIVE BRIEF

ONE IDEA.
ROOM TO PLAY.

Download the brief ↓

SUGGESTED STARTING ENVELOPE

100 × 100METRES / FOOTPRINT

Start compact; you do not need to fill the plot. Height guidance remains 20 m; taller ideas need placement review. Centre your build at the origin, with the walking surface at ground level.

Proposed event guidance, not an Otherside platform limit. Bigger idea? Submit its dimensions for placement review.

01

Make the first moment clear.

Players should see where to enter, what to do and how to leave. Keep signs readable and decoration out of the main route.

02

Build for a real avatar.

Inspect stairs, openings, clicks and collision at player height. Visual surfaces and collision need separate checks.

03

Give us a reliable reset.

If it has a game state, explain how to start and reset it. Cap light intensity and emission at 1.

04

Show what’s yours.

Credit collaborators, source assets and AI assistance. Tell us what was remixed and what you changed.

Browser tested ≠ world rehearsed.

Your editor demo helps us understand the idea. Shortlisted builds still need an organizer-led Otherside rehearsal for placement, avatar interaction and shared behavior. Final selection depends on that rehearsal.

Read our testing checklist ↓

Starter source