Touch: swipe on the board to step in a direction, or use the on-screen arrow pad; the keeper pushes any crate it walks into. Undo and Restart buttons sit beside the pad. Tap to resume from pause. · Keyboard: Arrow keys or WASD move, Z or U undoes, R restarts, M mutes, Esc returns to the level list. The on-screen pad and swipes work the same as the keys.
About:
A push-crate logic puzzle in the spirit of the 2000s Flash classics, made in-house for Leetdom. Heavy archive crates have slid off the floor seals that keep a vault quiet, and you play the keeper who nudges them back. You can only push, never pull, and only one crate at a time, so every shove has to be planned from the far side. Seat a crate on each glowing seal and the whole room falls silent.
There are sixteen hand-built rooms across three chapters, each one checked by a breadth-first solver so it is always solvable and has a known shortest solution. The first chapter, The Stacks, is pure pushing and teaches you to read corners and order your moves. Diodes adds one-way floors that an entity may only enter travelling with the arrow, so a careless push can strand a crate forever. Currents adds conveyor floors that carry a crate one step after every move you make, and the final room folds everything together. The keeper is warned when a crate is wedged into a dead corner, and Undo and Restart cost nothing, so experimentation is encouraged. Stars are awarded for solving at or near the solver's optimal move count, and your best count is kept per room. Everything in it, the art and the sound included, is drawn on a canvas and synthesised in code, with no image or audio files at all.
Credits:
Made by Leetdom, 2026. Written for Leetdom, and it lives here.
Phone check: 2026-10-03: a node solver runs the same core logic the browser uses and proves all 16 levels solvable with their optimal move/push counts, plus invariants (one keeper, equal crate and seal counts, no level starts solved or dead-cornered, moves are deterministic). Offline audio render (30s, OfflineAudioContext) measured: peak -10.2 dBFS, music RMS 11.0 dB under SFX RMS, >6kHz content 28 dB below full mix, true silence between sounds. In the browser (playwright-core driving system Chromium): real touch on portrait (390x844) and landscape (844x390) phones and mouse plus keyboard on a 1280x800 desktop. Checked title, play, swipe/pad/keyboard moves, a solved room with star award, one-tap retry, undo, pause on a hidden tab, mid-play resize, and running with localStorage blocked. Zero console errors and no network requests.
Rate this game:
One vote per game each month.
Play next:
Canal JamA crowded canal lock is jammed solid and the copper barge is boxed in. Every narrowboat only drifts the way it points, so you slide the others aside, clear a channel, and ease the copper barge out through the gate.
Channel RushA spring is about to pulse and the meadows are thirsty. Lay and rotate irrigation channels before the countdown runs out, then release the water and watch it race through your routes to feed every habitat without wasting a drop.
Clockwork VaultsA little wind-up automaton creeps through twenty clockwork vaults one tile at a time. Gather every cog to open the socket gate, juggle keys, crates and special soles, dodge patrolling machines, and slip out through the hatch.
CradlestoneA carved idol is held aloft by a tower of runed stones. Dissolve them in the right order and the idol settles gently onto its cradle; pull the wrong one and it topples, drops too hard and shatters, or slides off into the dark.
