Make combat useful. Whenever an enemy unit or building is destroyed, the current technology research will progress in proportion to the maximum health of the destroyed unit or building. Compatible with both biters and PvP.
This mod is especially interesting in a Death World map without building any labs or building any science packs. Kill to progress and survive!
Note that this mod is no longer being updated. I recommend using https://mods.factorio.com/mod/combatresearch instead.