You are a rat. You must climb. No collectibles, no invisible walls, no unlockable skills. You can only run, walk, and jump. Can you reach the top of the world?
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In Rat Climber, you only have one goal: reach the top of the world.
You must navigate vertical labyrinths and make daring jumps, but be careful; one false move and you go tumbling down.
- Just climb and explore! But there may be a secret cheese in each zone, and something special might happen upon finding them all...
- If there's a small hole, you can probably fit inside. A 3 inch ledge? You can stand on it, Ratty! Start thinking like a rat.
- There are only 3 controls: Jump, dash, and walk
The dash lets you jump farther and slightly higher
The walk allows for precise movement and prevents you from walking off of ledges
If you fall, there's a chance you could recover progress from a recovery path, or land in a previous zone below you, but it's not guaranteed!
Can you guide Ratty to the top of the world and reach cheese heaven? Try your skills in the best 3D ratformer ever made!
DEFAULT CONTROLS (run and walk keybindings can be changed in the options menu)
Shift: Run
Left Ctrl: Safety Walk (will not walk off of ledges as long as held down)
Spacebar: Jump
Enter/Esc/Backspace: Options Menu
E: Interact
T: First Person Mode
B Button: Run
X Button: Safety Walk (will not walk off of ledges as long as held down)
A Button: Jump
Start/Options Button: Options Menu
Right Trigger: Interact
L3: Camera Reset
R3: First Person Mode
Start Button: Options Menu
L3: Re-center camera
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.













In Rat Climber, you only have one goal: reach the top of the world.
You must navigate vertical labyrinths and make daring jumps, but be careful; one false move and you go tumbling down.
- Just climb and explore! But there may be a secret cheese in each zone, and something special might happen upon finding them all...
- If there's a small hole, you can probably fit inside. A 3 inch ledge? You can stand on it, Ratty! Start thinking like a rat.
- There are only 3 controls: Jump, dash, and walk
The dash lets you jump farther and slightly higher
The walk allows for precise movement and prevents you from walking off of ledges
If you fall, there's a chance you could recover progress from a recovery path, or land in a previous zone below you, but it's not guaranteed!
Can you guide Ratty to the top of the world and reach cheese heaven? Try your skills in the best 3D ratformer ever made!
DEFAULT CONTROLS (run and walk keybindings can be changed in the options menu)
Shift: Run
Left Ctrl: Safety Walk (will not walk off of ledges as long as held down)
Spacebar: Jump
Enter/Esc/Backspace: Options Menu
E: Interact
T: First Person Mode
B Button: Run
X Button: Safety Walk (will not walk off of ledges as long as held down)
A Button: Jump
Start/Options Button: Options Menu
Right Trigger: Interact
L3: Camera Reset
R3: First Person Mode
Start Button: Options Menu
L3: Re-center camera
You are a rat. You must climb. No collectibles, no invisible walls, no unlockable skills. You can only run, walk, and jump. Can you reach the top of the world?
We are not affiliated with IsThereAnyDeal.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.