Had a couple of goes, best I could do is 30. Good to hear you got some of your mates involved in game design. It not easy! Well done. Good luck.
Haha, thank you! The ramp-up is a little intense and needs some tuning for sure. I used an exponential decay for spawn time with a half life of like 5 turn-ins, clamped at a minimum of 0.5 seconds.
So it ramps *hard* and could have definitely been toned down. 30 is wild, since after 20 they're spawning every half second. I don't think I could pull off 30 lol