You are playing as a Milky Way Federation scientist trying to design one-celled organisms that can out compete the one-celled organisms of the invading Tucani Empire. This game is part of the Tucani Space Wars universe.
If you run out of genome slots, double click the "Add Gene With Bioengineering" button. I recommend using turbowarp for this. https://turbowarp.org/1031118222?clones=Infinity&limitless