Geothermal energy for Nauvis, Gleba, Fulgora and Aquilo: steam vents spawn near ressource fields - tap them for fuel-free, low-pollution power. Pressurize vent steam to 500C and unlock steam turbines before nuclear. Distill coal under geothermal steam into synthetic crude oil, before finding your first oil field. Get early heat and energy on Aquilo. Richness scales with distance, distant fields are jackpots.
Mods introducing new content into the game.