Thanks, I'm glad you liked it! I should have made clear that the goal is to simply survive. The red and dead cells can't be killed. Only the attacking ones. Maybe a highscore approach would be more satisfying 🤔
Out of curiosity, what happens if you survive the whole time? Is that a win condition?
I like the idea of having the amount of time you survived = your score; that way it frames the game's goal as "survive as long as possible" instead of "survive this set amount of time".