Voxel Vault

Twenty-four grids, one tall block, and a vault that only accepts it standing up

Single player
puzzle
3d
adventure

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About Voxel Vault

The rolling block puzzle, built out properly. A block twice as tall as it is wide tips end over end across a floating grid, lying flat across two tiles on one roll and standing upright on one tile the next. The vault only accepts it standing, which turns a route that looks obvious into a parity problem — you can arrive at the right tile and still be lying down, with no legal way to fix it.

Twenty-four levels across three sets. The first eight are pure geometry. The second eight add cracked plates, which hold a block lying across them but give way under one standing upright, and spikes, fatal even if only the far end touches them. The last eight add pads and bridges: round pads fire on any contact, square pads only respond to an upright block, and both toggle — so stepping on the same pad twice removes the bridge you just built.

Every level carries a par move count and a hint line of its own, and levels unlock in order.

What is different about this version

Undo does not cost you anything. It rewinds the move counter as well as the block, the bridges, the broken plates and the gems you have picked up, so par is attempted rather than gambled on — you can walk into a dead end, step back four moves, and your score is untouched. Paired with that, an illegal roll is refused rather than punished, which means you can lean on a direction to test whether an edge is there. The camera is fixed isometric and rotates only to frame a level better; there is no orbiting, because the puzzle is read from one angle and spinning it would only make the parity harder to see. What can kill you is small and specific: falling, standing on a plate, or brushing a spike with either end.

How to play Voxel Vault

Roll the block one tile at a time. A roll that would leave the board or land on nothing is refused and costs nothing.
Get the block standing upright on the vault tile. Landing on it flat does not open it.
Cross cracked plates lying down. Standing upright on one breaks it and you drop through.
Touch round pads with any part of the block, square pads only while standing. Both switch their bridge on, and off again next time.
Collect the gems if you want three stars.
Clearing earns one star, finishing within half again the par earns two, and matching par with every gem earns three.

Controls

Desktop	Arrow keys or WASD to roll, with undo and restart buttons in the lower corners. Dragging also rolls the block.
Phone or tablet	Swipe anywhere on the board to roll the block in that direction. Short taps count as swipes, so a flick is enough.
Players	One player. Any other characters on screen are run by the game.

Strategy

Solve the last move first. The block must be upright on the vault, and an upright block can only arrive from a flat one two tiles away in one of four directions — so before planning anything, look at the vault, work out which four tiles can feed it, and check which of those the grid actually provides. On a narrow level that alone rules out most of the routes you were considering.

The second habit is counting in twos. From upright, one roll lays the block flat and a second roll the same way stands it up two tiles on, so straight-line movement lands upright on odd moves and flat on even ones. Turning while flat is what breaks that rhythm, and it is almost always the point of a level that seems to have a tile too few. If your route reaches the vault flat, the fix is rarely a detour — it is a turn taken one roll earlier.

Pads give the later levels their teeth, because they toggle rather than latch. A level with two pads driving one bridge is asking for an order, since touching both leaves the bridge exactly as it was. Round pads are the trap: they fire on any contact, so a flat block crossing a pad tile activates it without you meaning to. Plan routes that step around pad tiles in transit, and pick gems up on the way through — a detour for a gem is the usual reason a run misses par by two.

Mistakes that cost you the game

Planning the route forwards from the start tile. The vault has only a handful of legal approaches, and finding them last wastes most of your attempts.
Standing upright on a cracked plate to change direction. It is the one thing plates do not tolerate.
Crossing a round pad on the way somewhere else. Any contact toggles it, so a bridge you opened quietly closes behind you.
Restarting after a wrong turn. Undo costs no moves and remembers everything.
Treating a spike as something only the standing block can hit. A flat block covers two tiles and either is fatal.

Tips

Walk the block into walls deliberately. Refused moves cost nothing, so the fastest way to learn a level's true edges is to push at them.
Note the gem positions before your first roll and see whether they sit on your natural line. If they do not, the level is asking for a different route entirely, not a detour.
Read the hint line under the level name. They are specific to that grid rather than general advice, and on the pad levels they usually name the mechanic being tested.

Questions about Voxel Vault

How is the third star earned?

By matching the level's par move count and holding every gem on the grid. The second star only asks you to finish within half again the par.

Is undo limited?

No. The whole attempt sits on a stack, including bridge states and broken plates, and stepping back does not add to your move count.

What is in the three sets of levels?

Eight plain grids, then eight with cracked plates and spikes, then eight with pads and bridges — twenty-four vaults in all.

Can I turn the board around?

No. The view is fixed isometric and only reorients itself to fit a larger level on screen.

Does it cost anything?

No. Voxel Vault is free to play, runs in your browser, and needs no download, install or account.

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