Improvements to Oshan and Geothermal

[Lord_earthfire]

But in all fairness, I think the hotspot engine is "okay" at best. It's the weakest way to generate power as once it's setup it's enough, but the only way to make it better is by stacking hotspots wich a hassle!

Geothermal is overall stronger than the nuclear reactor and stronger than many TEG-setups, if done properly. Like most engines, scaling it is definetly possible.

There could be some more ways to do that, though.