World Builder

Build a world. Walk into it. Bring friends. Export it for your game.

• Generate. Pull the sliders and hit Regenerate. Height and ruggedness shape everything from gentle coastal flats to craggy mountain ranges. Push the sea level to flood the valleys into an archipelago, turn the moisture dial to sweep from bone-dry desert to lush forest, and scatter rivers and winding roads across the terrain. Every world is built from its seed, so a world you love is a world you can share and get back exactly - same seed, same world, every time.

• Choose your look. The same landscape can wear three different styles at the flip of a control: Voxel for the classic blocky, terraced pixel-art grain; Low-poly for clean faceted slopes; and Smooth for softly rounded hills. Eight biomes - ocean, beach, desert, grassland, forest, badlands, rock, and snow - with strata banding across the cliffs and a snow line that creeps down the peaks.

• Sculpt it by hand. Not quite right? Grab the brush and reshape the world live. Raise hills, carve craters, flatten a plateau, smooth a ridge, repaint the ground, add or drain water, plant forests, or clear the props away. Everything you change stays put.

• Explore it. Hop into a character and actually walk the world you built - run, sprint, double-jump across terraces, slide down slopes, and swim across the lakes. Watch the day-night cycle roll over the landscape, catch the weather turn, and cross paths with the wildlife that roams each biome. Prefer to fly? Toggle noclip and soar over the whole diorama. 

• Gear up and get around. Getting around is half the fun, so every character carries a hotbar of traversal gadgets - all unlocked from the start. Strap on the jetpack and thrust into the sky (boost for extra speed, refuel on the ground), pop the glider to soar across valleys, spring sky-high on the rocket boots' double jump, fire the grapple at a cliff to reel in and swing off your momentum, drift up under a balloon and float gently back down, or hold up the lantern to light your way at night. Then crank the gravity dial for floaty moon-jumps or heavy-boots mode - the whole kit bends with it. 

• Play it together. When your world is ready, hit Launch Server and hand your friends an invite code. Everyone loads into the exact same world - no downloads, no waiting, because the world rebuilds from its seed on every machine - and you're all running around it together with proximity voice chat: closer means louder. Explore, show off your builds, and mess around in a world that's entirely your own. 

• Keep it. Save your worlds to named slots and reload them whenever you want, or export a generated world to take somewhere else. 

Quick controls

• Sliders + Regenerate / 🎲 — generate and reroll worlds
• B — toggle the terrain brush (left-click to sculpt · right-drag to orbit)
• O — prop placement mode

• T — drop into / out of your character (possess ↔ orbit camera)
• W A S D — move · Space — jump (double-jump) · Shift — sprint · C — crouch · swim in water
• Mouse — look · Q / E — rotate the camera · wheel to zoom
• V — noclip fly · N — free-fly camera

• 1–6 — select gadget: Lantern · Jetpack · Glider · Rocket Boots · Grapple · Balloon
• Space / Shift / Click — use the equipped gadget (thrust, glide, grapple, and so on)
• P — stow the gadget hotbar

• Launch Server + invite code — start a co-op session and invite friends
• X — push-to-talk proximity voice
• H — hotkey legend · U — hide all UI

Suggestions, bugs, feedback?