
Gaia Maker
Gaia Maker is a planet-wide simulation game of terraforming. As the planet's overseer, wield advanced technologies to reshape barren planets into life-filled worlds. Foster animal life, cultivate civilizations, or destroy them. Their fate is in your hands.
This game was inspired by the great classic game SimEarth.
Features
- Simulation of the entire planet based on real physics and geology.
- Detailed simulation of temperature, biomass, carbon cycle, insolation, and atmospheric composition.
- Dynamic gameplay where player actions impact the entire planet.
- Resource acquisition via fusion reactors, Dyson swarms, and more.
- Various facilities and methods for terraforming (e.g., oxygen generators, aerosol injection).
- Animal breeding and habitat expansion.
- Simulation of civilizations' evolution and their planetary impact.
- Various dynamic events affecting civilizations, such as plagues and wars.
- Multiple distinct planet types to terraform.
- Achievements.
| Updated | 6 days ago |
| Status | Released |
| Platforms | HTML5, Windows, Linux |
| Rating | Rated 4.5 out of 5 stars (23 total ratings) |
| Author | garkimasera |
| Genre | Simulation |
| Made with | Bevy Engine |
| Tags | 2D, bevy, god-game, Life Simulation, Open Source, Pixel Art, Sandbox, Sci-fi, Singleplayer, Tilemap |
| Code license | GNU General Public License v3.0 (GPL) |
| Average session | About a half-hour |
| Languages | English, Japanese |
| Inputs | Keyboard, Mouse |
| Links | GitHub |
| Content | No generative AI was used |
Download
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Click download now to get access to the following files:
gaia-maker-v1.0.1.AppImage 51 MB
gaia-maker-win-v1.0.1.zip 54 MB
Development log
- Version 1.0.1Apr 13, 2026
- Version 1.0.0Mar 04, 2026
- Version 0.3.0Aug 30, 2025
- Version 0.2.0May 19, 2025






Comments
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Not played this game yet, but, just a tip for the developer, I would recommend including SimEarth as a keyword in the game's description for the fans of that classic game to find this game. I literally searched for "SimEarth" and didn't find this game in the results and only found it through the god-game tag, which was not shown in the tag drop-down menu on the Browse Games page.
The rats and hornets entered a brutal war ending in a rat genocide, so I plunged the world into an ice age and started life from scratch. Surely the crocodiles and octopus won't repeat history's mistakes. 10/10
Looks interesting
Game crashes at launch, running web on Firefox.
I think there should be a tool—like one that triggers earthquakes or something similar—that would allow you to lower the terrain height over a large, irregularly shaped area; it would make creating oceans much easier and result in a more natural look than simply using the solar beam hundreds of times.
hallow world!
I was amused to discover that while following the tutorial, I placed a small population of foxes in a forest. Before the tutorial even prompted me to grant them sentience, they had already reached the Stone Age. From that point onward, the fox civilization remained one step ahead of the tutorial, progressing through each era on their own.
What puzzled me, however, was their complete refusal to settle the northern hemisphere. They happily expanded and advanced for ages, yet ignored vast stretches of habitable land. Only after reaching the early Space Age did they finally begin moving north.
Apparently, according to these foxes, crossing the equatorial grasslands was simply too much trouble. Building spacecraft and colonizing beyond their home world was evidently the easier option. For foxes, I would expect nothing less. X3
Such an amazing game! Just a thing, life normally start in the ocean, but the biomass there is so low!
Very cool my space faring lizardmen went extinct. Now rats rule the world.
Really cool game, but I'm unsure how to create oceans on the barren planet, I'm using ice importers but no change seems to be happening
Игра мне очень понравилась. Наиграл в неё часов 5. Надеюсь вы расширите проект. Хотелось бы увидеть большее разнообразие биомов и переплетений разных параметров(температура влажность высота и т.д)
Здравствуйте. Не смог нормально поиграть т.к в браузере не удобно а порта на андроид нету
Можете пожалуйста портировать на андроид устройства?
Gameplay and Critique ;)
Thank you for your review!