I made a free, open-source SimEarth clone
SimEarth was a game that meant a lot to me when I was younger- it had me thinking big at an early age. I wanted to circle-back and create my own homage to it.
It's free, it's open source- do what you want with it:
play here: Biosphere Blue by HydroEngineer
code here: https://github.com/mf4633/board-gaming/blob/main/BiosphereBlue.html
have fun! and tell me if you like it. If you don't tell your neighbor you don't like it.
Posted Apr 24, 2026, 8:20 PM UTC
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