Codex Gamicus

Stacks On Stacks (On Stacks) is a casual arcade game developed and published by Herringbone Games. It was released on Nintendo Switch, PlayStation 4, Google Stadia, Microsoft Windows, Linux, and Macintosh operating systems, on April 1, 2020.


In this zany 3D tower builder, the player controls Rockit, the "master stacker", who must use her psychic helmet to clean up the colorful bricks falling all over her madcap world. The player can build stable towers by executing architectural feats of balancing, incorporate mixed-up materials into their towers using works of art, aquariums, magnets, and more, defend towers against invading ghosts, a fireball-breathing dragon, and other outlandish hazards, and knock their finished towers back down with a wrecking ball at the end.


  • Story mode: 36 stages featuring twists on stacking such as constructing on quicksand or a giant spring scale.
  • Co-op: Team up to complete the game with a partner.
  • Versus: best your bud with better balance with split-screen local multiplayer.
  • Twitch mode: optional Twitch integration lets your viewers vote to influence the game.

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