4D Game

You have been taken to a world with four dimensions. You can only ever see three of them at once.

Everything in front of you — the street, the platform, the drop you cannot cross — is one 3D slice of a 4D world. Walk, and you move through that slice. Turn into the fourth dimension and the slice tilts: walls thin out and disappear, a bridge you have never seen swings into place, the gap closes. Nothing moved. You are looking at a different cut of the same world.

It is a platformer, and every jump in it is an ordinary jump. What changes is which world you are jumping in.

Solid means you can stand on it

Anything close to your slice but not in it is drawn see-through, and the fainter it is, the further off it is. Solid means you can walk on it. See-through means turn first. That is the whole rule, and the game spends sixty-two levels finding out what can be done with it: bridges that only exist at one depth, doorways shut in one world and open in another, lifts, blades and crushers that come at you from a direction you cannot point at.

It teaches you the idea one dimension down first. A flat creature lives on a sheet and can only touch what its sheet passes through — and it can turn the sheet. Then you turn yours.

Something is talking to you

You wake up somewhere that is not your front room, and a voice is already there. It is patient with you, it is kind about every fall, and it says it knows the way home. Thirteen voiced scenes, a little under seven minutes of them, tell the rest — all of it subtitled, and the volume of the voice is yours to set.

In the full game

• Sixty-two levels across five worlds: streets like yours held a little too still, a city with no street under it, a forest growing over whatever was there before, a works under a furnace sky, and one more place that is nothing like the other four.
• A story in thirteen voiced scenes, shot in the worlds you play them in.
• A level editor. Build in four dimensions with a ruler along the axis you cannot see, play what you have built with one key, and save it under your own name. The game's own levels are not yours to change.
• Twenty-two achievements, including some you will not see coming.
• A tutorial that will teach the fourth dimension to somebody who has never heard of it.
• Everything rebindable, with a separate sensitivity for looking around and for turning your slice — they feel nothing alike — plus field of view, reduced motion, screen shake, camera easing and particles, and sliders for voice, effects and music.
• Downloads for Windows. The demo plays in your browser, here on the page.

In the demo

The demo is free, and plays right here in the browser or downloads for Windows. It is the first two worlds: twenty-five levels, the tutorial, and the story up to the end of the city. It ends where the second world does.

The level editor and the achievements are in the full game. They are still on the menu in the demo, greyed out and saying so, along with the three worlds the demo does not have — nothing is quietly missing, so you can see exactly what the rest of it is.

Controls

Action	Keyboard / mouse	Gamepad
Move / jump	WASD / Space	Left stick / A
Look	Mouse	Right stick
Turn into the fourth dimension	Hold the left mouse button and move the mouse left or right, or press Shift to lock it on	Hold LB and move the right stick
Turn toward the goal	G	Y
Ghost hints on and off	H
Respawn	R
Pause	Esc	Start

Turning into the fourth dimension is always something you hold or lock on, so it never happens by accident. The crosshair turns cyan while it is on.

Who made what

• Raspberry Pip Games — the game, its levels, and every sound but the interface's.
• Music: Pizza Doggy, Cozy Tunes — pizzadoggy.itch.io/cozy-tunes
• Interface sounds: JDSherbert, Wooden UI SFX Pack — jdsherbert.itch.io/wooden-ui-sfx-pack
• Voices made with ElevenLabs. Every line is written by hand, performed by a generated voice, and subtitled.
• Built in Godot 4.6.