I just want to say I love the mod, and I think it makes the game a little bit like an RTS. However, at least for me, the robots' unlimited lifespan is kind of overpowered.

I think there should be a setting that brings back the vanilla lifespan mechanic, maybe with an option to change how long it is so it doesn't destroy the robots' usefulness. Or, the robots could slowly lose health over time and must be repaired.

Since the mod changes the entity types from flying-robot to spider-vehicle, there is no default setting for a limited lifespan. So the only way to implement this would be to damage each robot on each tick. I might add this feature sometime in the future.