Fact Sheet

Et Al Games

Release date
October 12th, 2021

Steam, itch.io


Steam page

itch.io page



Changes is a puzzle game about transforming living structures that evolve every time you move.

In Changes you solve puzzles by pushing cells to reshape the level and reveal latent possibilities. Each level takes place on a grid of cells which follow three rules: cells are born, die, or survive based on how many living cells neighbor them. All the puzzles emerge from these three rules, which come together to tell stories about the transformations caused by life and death. Some are tragic, others epic, and a few are pretty cute.

Each of the puzzles showcases unique and surprising qualities of the system, but they are also fun playgrounds to experiment and discover on your own. Even failure can produce beautiful results in Changes.


  • Dynamic music created by your movement and the birth and death of cells.
  • The undo system lets you rewind time to fix mistakes or replay a chain reaction.
  • Discover how beautiful shapes emerge from simple rules across over 100 puzzles.
  • A world decorated with poems, bits of history, and developer commentary.
  • There are no gated areas or hidden levels. The game will never hide itself from you.
  • 9 exhibits which each explore themes like identity, conflict, and sacrifice.


Images and Gifs


Download changes_images.zip
Download changes_trailer.mp4


Changes was developed by:
Collin Eye (puzzles, code, writing, audio)
Heather Zeis (code)
Hope "Kayden" Nasr (models, textures)

Team Bio

Collin Eye
Collin teaches game programming and design at Dallas College. He has dogs and cats.
Heather Zeis
Heather is a programmer.
Hope "Kayden" Nasr
Hope is an environment artist, organizer for the Dallas Society of Play, and pun aficionado.