ONE ROOM, MANY WORLDS

Welcome to One Room, Many Worlds.

This is a game jam about one simple idea:

One room.
Many worlds.
Endless possibilities.

Create a small game where the player starts in one room, but this room changes into different places, dreams, memories, nightmares, or strange realities.

Your game does not need to be huge. A small playable prototype is enough.

Make one room interesting. Make it change. Make the player remember it.

THEME

One Room, Many Worlds

Your game must be based on one main room or one small location.

It can be a bedroom, basement, elevator, office, classroom, kitchen, prison cell, bunker, spaceship room, empty white room, or any small closed place.

But the room should not stay normal.

It can transform into a forest, ocean, desert, city, space, nightmare, dream, memory, laboratory, ruins, or another dimension.

The more creative the transformation, the better.

IDEAS

Example ideas:

• A bedroom changes every time the player sleeps.
• An elevator opens to a different world on every floor.
• A classroom turns into old memories.
• A bunker slowly becomes an alien planet.
• A kitchen creates portals through food.
• A prison cell changes depending on player choices.
• A small apartment becomes a forest.
• A normal room slowly breaks reality.

You can make horror, puzzle, comedy, story, platformer, simulator, walking simulator, visual novel, or experimental game.

JAM TIME

You have 3 days to create your game.

Day 1 — Idea

Think about your room, main mechanic, and how the room changes.

Day 2 — Make

Create the playable version of your game.

Day 3 — Polish

Add sound, atmosphere, menu, ending, small details, and upload your game.

The game does not need to be big.

A small finished prototype is better than a huge unfinished project.

WHAT YOU CAN MAKE

You can make any type of game:

• horror game
• puzzle game
• walking simulator
• platformer
• visual novel
• story game
• experimental game
• comedy game
• atmospheric game
• short prototype

Any style is allowed:

• 2D
• 3D
• pixel art
• low poly
• hand-drawn
• simple shapes
• dark style
• cute style
• surreal style

Use any engine or tool you want.

Unity, Godot, Unreal, GameMaker, Construct, RPG Maker, Scratch, HTML/CSS/JS, or anything else.

RULES

Please follow these rules:

• Your game must use the theme.
• Your game should be made during the jam.
• Solo developers are allowed.
• Teams are allowed.
• Any engine or tool is allowed.
• Free assets are allowed, but you must credit them.
• AI tools are allowed, but the final game must be playable and made by you.
• No stolen content.
• No hateful or offensive content.
• No NSFW content.
• Have fun.

There are no engine restrictions.

SUBMISSION

When submitting your game, please write:

• What is your game about?
• What room did you use?
• What worlds does the room transform into?
• What engine or tools did you use?
• Did you work solo or in a team?
• What are the controls?
• What assets did you use?
• Are there any known bugs?

Make sure your game page explains how to play.

Your game should be easy to start and understand.

VOTING CRITERIA

Games will be rated by these categories:

Theme

How well does the game use the idea of one room changing into many worlds?

Creativity

How original and interesting are the room transformations?

Atmosphere

How strong is the mood, sound, visuals, and feeling of the game?

Gameplay

How fun, clear, or interesting is the game to play?

Polish

How complete, understandable, and finished does the game feel?

TIPS

You do not need to make a huge game. Focus on one strong idea.

Good ideas for this jam:

• One room with different versions.
• One door that opens to different places.
• One object that changes reality.
• One loop that becomes stranger each time.
• One small story told through room changes.
• One puzzle where the room transforms.
• One horror scene where the room slowly breaks.

Simple is good. Atmosphere is important.

HASHTAG

Use this hashtag when posting about the jam:

#OneRoomManyWorldsJam

FINAL MESSAGE

Good luck, have fun, and create your own strange room.

One room.
Many worlds.
Endless possibilities.