Voxel Portal Sandbox

Build with blocks and link it with portals that keep momentum: a block-built portal puzzle sandbox.

Voxel × Portals

First load downloads the game (~60–120 MB), then it's cached.
Needs a desktop browser with WebGPU or WebGL2. Keyboard + mouse.

Tab opens the mode panel · F1–F8 toggle modes live

What happens when Voxel × Portals collide

  • Build a drop shaft and a floor portal for an endless fall loop.
  • Portal TNT into places you can’t reach.
  • Place portals on your own builds.

The modes

Voxel

Break and place blocks anywhere, light TNT, and build rail blocks you can grind. Inspired by voxel sandbox games.

Controls: 4 pickaxe/blocks · LMB break · RMB place · scroll block type · T TNT

Portals

Two linked portals that keep your momentum. Bullets, cars and boards all pass through. Inspired by 2007-era portal puzzlers.

Controls: 8 portal gun · LMB blue · RMB orange

FAQ

Can I play Voxel × Portals online for free?
Yes. This is a GameMash preset that runs in your browser with WebGPU or WebGL2. It's free, there's no account, and you don't need any game files.
Can I add more modes?
Yes. Press Tab to open the mode panel, or F1–F8 to switch modes live. You can add Skate, Platformer, Shooter and more without losing your momentum.
Is it made from the original games?
No. Every mechanic is a clean-room implementation written from observed behaviour and published values, with original code and CC0 or self-made assets. The modes are inspired by voxel sandbox games and 2007-era portal puzzlers.

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