Physics stacking

Stackfall

One tap per block. Eight crates, and no word on what they build.

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Stackfall gives every run a goal. A crane sweeps each block across the tower on a fixed arc you cannot nudge, aim or undo, so you choose only the moment you let go. A little climber works his way up the side of your tower, and above him a crate hangs from a balloon: stack high enough and he grabs it, the run ends as a win, and the next crate hangs a little higher.

How Stackfall plays

One input, no take-backs

The arc is fixed and the crane never stops, and a dropped block keeps the crane's sideways speed. That single choice of timing is all that stands between the tower and gravity. A drop that misses costs you the block; a tower that topples costs you the run.

Eight crates, one secret

Each crate holds a single part, and nothing says what the parts are for. The first hangs at 2.5 metres and the eighth at 16; open all of them and you find out what you have been putting together. A second chapter of eight follows.

Unlocks that help you climb

Some crates bring new capability with them: a wide deck to steady a wobble, leaning and offset blocks, a preview of the block that comes next. The physics never changes, and the game never speeds up.

Missions, and something to wear

Three small missions run at all times, such as landing a block dead centre or helping the climber a few pegs higher, and they count across runs, so a tower that falls still gets you somewhere. Finishing a set dresses every block in the tower in something new: a party hat, glasses, a moustache, a crown.

Every block is somebody

Each piece is a small character with a face and a temperament. They squint and sweat as the tower sways, and whichever one finally falls gets spiral eyes for its trouble. Higher up, the sky starts watching back.

At a glance

Genre: Physics stacking
Platforms: iOS and Android
Input: One tap
Price: Free to play

Official site

→ stackfall.devcraftai.com