Steam game

Stacking Up: A World in Progress

Stacking Up: A World in Progress is a casual physics based puzzle game where you need to stack items to form a chain that stands without falling for 3 seconds. Each stage has different hazards and obstacles that you need to work around or use to your advantage.

$2.99 March 23, 2026

By Pixel Mirror Studio

Windows
View on Steam
Stacking Up: A World in Progress - Pixel Mirror Studio. Popular. Released March 23, 2026
Screenshot of Stacking Up: A World in Progress gameplay showing in-action mechanics Screenshot 2 of Stacking Up: A World in Progress - additional gameplay view Screenshot 3 of Stacking Up: A World in Progress - more gameplay footage Screenshot 4 of Stacking Up: A World in Progress - final gameplay screenshot

Overview

About this game

Stacking Up: A World in Progress is a casual physics based puzzle game where you need to stack items to form a chain that stands without falling for 3 seconds. Each stage has different hazards and obstacles that you need to work around or use to your advantage.

COMPLETE THE STACK

Everyday items become your building blocks. Grab, rotate, and arrange items to form a stable stack in order to connect the starting area to the finish area. You'll need to make sure that your stack holds steady for 3 seconds in order to complete each level.

DON'T FALL

Not every stack is stable. If you want to reach the goal you'll have to build your stack wisely. Cutting too many corners or making it too top heavy could cause everything to come crashing down.

NAVIGATE OBSTACLES

Each stage takes you into a different room with its own unique obstacles and hazards. A springy bed? An angry octopus? A TV that somehow lets you stack on top of its images? All of it, and much more. 

EXPERIENCE THE JOURNEY

What is the point of all of this stacking, and what's with the little green guy? A world turtle hatchling named Topple was born in an unfortunate state.. he doesn't have a world to carry. He's found a globe that would do just the trick, it's just a little out of reach. Help him stack up items to get to it. Hopefully it won't find a way to evade his grasp. 

FEATURES

  • 90+ Levels

  • 13 Different stages with their own challenges

  • Lo-fi music

  • Multiple solutions to each level

  • A funny lighthearted story

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