A downloadable game for Windows, macOS, and Linux

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"I'd play this for a couple of minutes"

 Some pieces move, some pieces fall, a piece or two might end up tumbling some more. At least that's how things usually go during your average game of Reaction. You swing your paddle left and right in order to push the pieces towards the evacuation shafts, gaining some of that precious little time before the play area inevitably spills and it's game over.

"Aha", I hear you say, "so it’s a physics puzzler of sorts!" And that is correct. You can play it alone or with a friend in multiplayer, you can go at it in short bursts or try to crack those elusive high score spots.

Here's what's included:

  • A single and/or multiplayer experience
  • Six power-ups to help you get through the evolving levels of difficulty
  • The option to add faces and expressions to pieces, turning them from cold shapes into cute little geometrical folk 
  • Versions for Windows, Linux, and Apple. *

Speed, difficulty, controls, sound, and music are all customizable. By default, you use the left and right arrow keys in a singleplayer or when playing as player one in multiplayer, while player two controls their paddle with the Z and X keys.

All downloads below are version 1.1 . In addition to some much needed bug fixes, this comes with a few quality of life improvements.

We want to continue improving the game, so if you have any ideas about what we can add or fix in future versions drop us a line.

I know times are hard, so don't worry about leaving any money if you're tight on cash. Just download the game and have some fun with it, maybe even share it with your friends and help spread the word.

* See this section on compatibility and troubleshooting for various platforms.

PlatformsWindows, macOS, Linux
Rated 3.0 out of 5 stars
AuthorMechanical Ink
Tags2D, blocks, Casual, Colorful, Feel Good, Local multiplayer, Physics, reaction
Average sessionA few minutes
InputsKeyboard, Mouse
AccessibilityColor-blind friendly, Configurable controls, High-contrast
MultiplayerLocal multiplayer
Player count1 - 2


Download NowName your own price

Click download now to get access to the following files:

Reaction Windows 13 MB
Reaction Linux 13 MB
Reaction macOS 20 MB


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Salut mes petits agneaux ! Cette fois-ci, c’est du sérieux ! Vous aurez pour mission de trier un maximum de formes différentes pour ne pas vous retrouver submergés ! Au menu vous aurez : du triangle, du carré, de l’hexagone, du ennéagone, vous aurez de tout pour bien vous ennuyer, et pour ce faire, vous aurez votre fidèle pagaie ! En la tournant par la droite ou par la gauche, vous devrez évacuer les formes pour ne pas vous retrouver dans une situation impossible ! Vous pourrez, dans ce jeu, hommage à Tetris et d’autres puzzle game du genre, jouer seul ou à plusieurs en local ! Le gameplay simpliste, cette possibilité de pouvoir jouer sans avoir besoin d’internet, comme les anciens jeux, une bonne vibe retro, et la possibilité de donner ce que l’on veut pour soutenir les devs du jeu, c’est une sorte d’invitation en enfance, pour les plus anciens, et une bonne petite expériences pour les plus jeune ! Dans la vidéo, vous aurez une intervention de Ioni, dev du jeu, expliquant comment le jeu a été pensé ! Pour tout le reste, vous pouvez envoyer plein de courage pour montrer à quel point le jeu peut vous intéresser ! Il est disponible sur Itch.io !

 C’était Ookamiette, Qui va compter les angles


Hey there Mechanical Ink, I have here below your gameplay review YouTube video! I hope this will give some boost to your game page and helps with updating it as well. I would be glad if you could help me out by subscribing to my YouTube channel! It does help out to keep me doing these reviews here. Here are some notes as well:

  • The game is simple and engaging and it even got leaderboards! Awesome!
  • There has been a side issue from using the power-ups where in the video after 5 minutes you will see that one of the pieces went out and that caused me to lose! This might be a common side issue for using those power-ups! (I was doing great and this might seem unfair to some players too when using power-ups).
  • It will be great if you add other music, especially the dramatic ones while playing.

The video contains more info and more reviews! I hope my reaction to your Reaction was good ;) I wish all the best for your game.