On Google Play

Casual block-stacking arcade

UpStack

Stack blocks as high as you can across four themes, with weekly challenges and 1v1 duels on one phone.

Stack straight, climb higher

In UpStack you build a tower one block at a time, tapping to set each moving block on the one below. Whatever overhangs is cut off, so the next block is narrower.

Perfect placements build combos and widen the block again, and consecutive center hits multiply your score. Gold blocks bring back lost slices, and past a score of 50 the speed changes and danger zones appear.

What's in the game

01

Perfect placements

Line a block up exactly to build a combo and win back width. Hit the center several times in a row for a large score multiplier.

02

Four themes

Forest Serenity, Cosmic Journey and Cyber Night each have their own colors and music, from kalimba to chiptune and FM synths. Dynamic Journey changes theme and difficulty as your score climbs.

03

Gold blocks and danger zones

Gold blocks give rewards and restore the slices you have lost. After a score of 50, block speeds change and danger zones start to appear.

04

Weekly challenges and duels

Weekly challenges change the rules: Perfectionist, Fast & Furious and Shrinking World. In a local 1v1 duel, two players take turns on the same phone.

05

Levels, skins and achievements

Earn XP to climb 10 levels, unlock 15 achievements and pick from 10 block skins such as Classic, Marble, Lava and Diamond, each with its own trail.

06

Offline, in five languages

Play without an internet connection, in English, Turkish, German, Hindi or Arabic. Signing in to Google Play Games for the global leaderboards is optional.

How it's built

UpStack uses Phaser 4's WebGL renderer inside an Angular and Ionic app, packaged with Capacitor, and targets 60fps with low battery use. The synth sounds come from the Web Audio API.

Phaser 4.xAngular 20Ionic 8Capacitor 8Web Audio API

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