I read your other comment but I am still not sure how the game is meant to be played... So I can place barriers to prevent the purple numberthing from spreading. I am not sure why I would drop one of those myself, as it seems to kill all cells. Maybe a little tutorial in the description page would help? :)
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The purple number thing is currently coded as poison, but is meant to be antibiotics. To which certain cells can have resistance. If there were multiple antibiotics this can shape the outcome of the game in ways that it might be better to do a little harm if it leads to the competition to disappear.
This was a planned mechanics but cut due to the time constraint / problems mentioned in other posts. The tutorial is also a content that was intended to be created as the levels themselves. The first few levels were supposed to use a subset of the mechanics, like toggle the purple thingy and the green thingy (currently not visible) which would be the food available. And introducing more mechanics later.
This was a quick test level to check if the mechanics are working or not. It was changed in the last minute to enable multiple strains. The center one was the player originally, but that meant instant win without user input, so it was swapped to make it more challenging.
It is approximately impossible now to win, and no content change is allowed during the voting period. After the voting period ends I intend to release game-play updates to this game, because I care about this idea and I think this could be executed way better than this.
Stay tuned!