update · December 5, 2025
PlanetBase 2 Update v03 Brings Geothermal Power and Gyms
Planetbase 2 update v03 introduces geothermal power plants, fertilizer-based Bio Domes, a colonist fitness stat managed by gyms, and processing plant components.
The third development update for Planetbase 2 adds secondary power infrastructure, updated farming mechanics, and colonist fitness tracking.
Power and Processing
Players scan for underground heat using crew or drones to place Geothermal Plants, connecting them back to the base and monitoring them from the Control Center. Processing plants now support steel and plastic processors, alongside a glass furnace that turns mined silicates into dome glass.
Agriculture and Storage
The Bio Dome returns with required fertilizer made from organic waste or surface sulfur. Crops feature revised vegetable selections, alongside food sources such as insects, algae, and synthetic meat. The Canteen now features a fridge for food storage.
Fitness and Environment
A new Fitness stat tracks colonist health in low gravity. Biologists, medics, and engineers must visit the Gym to stay in shape, while workers handle heavy labor. The update also adds tyre tracks, footsteps, dome cameras, resupply ships, and placement UI.
Why this patch matters
Update v03 expands Planetbase 2 with logistical networks, remote power generation, and colonist management features.