There are 3 infinite researches: Military, Mining prod, Bot speed.
- Military doesn't really have infinite research. Reason: Biters evolution hard cap.
- Mining prod is so damn good, because it gives 2 benefit:
a. Increase mining speed -> Reduce miner count -> Save ups
b. Slow down depletion rate -> Build outpost less often -> Save player time
And it is widely agreed ups and player time are 2 most valuable resources in super late game.
- Bot speed reduce bot count and save ups, but the diminish return is too harsh that it cannot compete against mining prod.
I'll start first, my idea is Toolbelt 2-∞
Every level increase inventory slot by 2~5, cost increase linearly like mining prod.
I believe this would save player time. Late game, building bigger and bigger outpost often comes with annoying "inventory full" message. Yeah i know, trains, spidertrons etc, but i see those just as hard disc, and players inventory is ram, its just more flexible to work with players inventory, others has their own limitation, and cost player's time.
And yes i know there are mods, but that's not the point. The point is to see what creative ideas other can come up with.