There are four Ancient Blueprints for each part of your mining pod that can be found. They resemble a blue parchment scroll and there is onet hidden on each map. After one is found, save the game and reload it to make the next one discoverable. The upgrades will disappear after the game is completed, but you can repeat the steps to find them again. Unlock the following blueprints by performing the corresponding tasks:
BLUEPRINT - HOW TO UNLOCK Fuel Integrator fuel tank - Buried in the ground between 4,000 feet and bottom. It is larger than the Liquid Compression Tank, It collects fuel from gas pockets, but does not stop damage. Hyper-Drive engine - Buried in the ground between 4,000 feet and bottom. It is faster than the V16 Jag Engine. It allows unlimited teleportation to the surface. Magma Converter radiator - Buried in the ground between 4,000 feet and bottom. It is stronger than Tri-Turbine Freon Array. Money is earned when you hit lava pockets, but does not stop damage. Multi-Drill - Complete all 12 challenges in challenge mode without failing. It is faster than the Amazonite Drill and can drill through rocks. Portable Wormhole cargo bay - Buried in the ground between 4,000 feet and bottom. It is larger than the Leviathan Bay. Regenerative Hull - Buried in the ground between 4,000 feet and bottom. It is stronger than the Energy-Shielded Hull. It regenerates lost health slowly over time.