Procedural voxel sandbox · no install

Dig it out.
Build it up.

Voxholm is a 64×64×36 block island grown from a single number: rolling hills, a shallow sea, sandy shore, timber groves and veins of glowing ore hidden in the stone. Punch blocks loose, stack planks into a watchtower, and stay until the sun drops behind the ridge.

64×64×36 blocks
9 block types
600 s day
seed 20261008

Play now How it plays

Live preview — one orbit of the generated island, day running in fast forward

Views from seed 20261008

Rendering of the Voxholm island — 01Wide landscape, midday sun, sea to the west

Rendering of a plank and lantern build — 02Close-up: plank watchtower with lanterns at dusk

Night rendering of the island — 03Night: moonlight, stars and lit ore

What you can hold

What is in it

Seeded terrain. Value-noise hills, a fill line for the sea, sandy shore, deterministic timber groves and rare glow ore - the same seed always grows the same island.
Real digging and real building. A voxel raycast picks the block you are looking at, breaking throws coloured debris, and placement sticks to the face you aimed at.
A day that actually changes the world. The sun crosses the sky, fog and sky colour follow it, stars fade in at night and placed glow blocks become lamps you can walk up to.
Your island stays put. Every block change and your position are written to browser storage about a second after they happen, and re-open on the next visit.
Jump, walk, fall. Swept axis movement against block faces, a jump just over one block high, water you can wade into.
Works with a keyboard, a mouse or a thumb. On-screen move, jump, break and place controls appear on touch devices.
Hotbar of eight blocks. Pick with number keys, the mouse wheel or by tapping a slot; the selection is saved too.

Controls

Keyboard

WASD walk and strafe
Space jump
←→↑↓ turn the view
1…9 pick a hotbar slot
N new world, clears the save
Esc release the mouse

Mouse

Click the view to capture the mouse for looking
Left click breaks the block under the crosshair
Right click places the selected block on that face
Wheel cycles the hotbar

Touch

Drag the round pad to walk
Drag anywhere else on the view to look
Break and Place buttons
Jump button

Address bar

?seed=1234 grow a different island
?time=0.05 start at night (0…1)
?daylength=120 seconds per day
?debug=1 start playing straight away

Dig it out.Build it up.