Play as Stack – a tower of buddies just trying to take a nap – when mysterious grumbles start falling from the sky! Dodge them, weave them, and swerve to grab some coins. Develop a healthy addiction to coins as you find the source of your sleeping debacle… from above. Maybe grab a friend (or seven) along the way.

There are many ways to play, the game supports WASD, arrow keys, controller, mouse and touchscreen. There’s also a range of options to tweak so that the game can run more smoothly on different devices.

Players without fast reaction time can also benefit from the assist modes, that allow you to play the regular game, but without any finicky button inputs.

You can also play with between 2 and 7 other players for local co-op or party modes.

Play through eight different levels as you find the source of these mysterious falling grumbles. Each level has a unique gimmick which will change up how you must approach it. 

Play with a buddy and work through the story mode together or play locally with up to seven friends to battle it out for a victor! There are 7 unique powerups to fight with.

Got a spare minute? Rounds are fast and can be played for short periods. And between the achievements, coin goals and high scores, you’ll be kept busy!

Change settings in MENU>OPTIONS, including audio, visual, system and accessibility options. There are also Settings Presets to quickly make adjustments.

Program and modify the game with Datapackles. Perform commands in the in-game console, and create Datapackles which have functionality for custom levels, and other shenanigans. See the documentation to learn more.

Updates to STACK & the Gumblepuff from Above. See MENU>INFO in-game for a complete summary.

1.12.1 Update | January 2025 | New Music

1.12 Update | December 2024 | Multiplayer

1.11.1 Update | November 2024 | Datapackles

1.11 Update | October 2024 | Story Update

1.10.4 Update | September 2024 | The Grumblepuff, Atmosphere & Bugs Update

1.10.3.1 Update | August 2024 | Initial Cutscene Bug

1.10.3 Update | August 2024 | Later Levels & Bugs Update

1.10.2 Update | June 2024 | Massive Performance Improvements & Updated Animations Update

1.10.1 Update | April 2024 | Story Mode Improvements Update

1.10.0 Update | February 2024 | Story Mode Update

1.9.1 Update | January 2024 | Fonts Update

1.9.0 Update | December 2023 | Initial Story Mode Update

1.8.2 Update | July 2023 | Bug Fixes

1.8.0 Update | July 2023 | Miscellaneous Update

1.7.2 Update | April 2023 | Bug Fixes

1.7.1 Update | January 2023 | Critical Save File Bug Fix

1.7.0 Update | January 2023 | Bug Fixes Update

1.6.0 Update | November 2022 | GUI & Bug Fixes Update

1.4.0 Update | July 2022 | Achievements, PVP & Hats Update

1.3.0 Update | April 2022 | Trails and Game Modes Update