Oasisse asteroid guide: desert, scarce water and example seeds

• Copper. Copper Ore reaches 900 to 2,300 tonnes on the sample seeds; no other base-game start sampled here passes 1,000 tonnes.
• Sand and sandstone everywhere: Hatch food and filter media for a Water Sieve never run out.
• Five or more oil patches give an early Crude Oil supply.

• Water. The forest water pockets are small and the desert holds none. Until a geyser is tamed, every litre must be recycled.
• Heat from the desert band and the jungles, with no tundra to absorb it.
• Little Algae: the forest start depends on Oxyferns and an early electrolyzer.

1. Cycle 1: Research Station, Outhouse, and a Mealwood farm on the forest dirt.
2. Cycle 1 to 5: Oxygen Diffuser on the nearest algae; protect the Oxyferns.
3. Cycle 3 to 10: Microbe Musher on the small water pockets, and plan the Water Sieve early because toilet water is your largest source.
4. Cycle 5 to 20: tame the nearest water vent on your seed and build the Electrolyzer on it.
5. Cycle 20 to 40: ranch Hatch on sand for coal, then a Coal Generator.

Water is the clock on Oasisse. Count the forest pockets on cycle 1, reserve them for drinking and the musher, and keep every Duplicant activity that wastes water off until a geyser runs into the base.

The desert is hot and the sand flows when undermined. Dig the desert from the side with tiles ready, and keep the base on the forest side of the map.

Metal Rich, Trapped Oil, Mixed Boulders and Magma Channels. A hard water seed: the nearest water vent is a Steam Vent 58 cells away at (179, 214) with 500 ºC steam, and the first Cool Steam Vent is 88 cells above the pod.

Gas power is close instead: two Hydrogen Vent vents sit 54 and 60 cells from the pod, and a Copper Volcano 64 cells to the right at (193, 188) adds to the large copper ore deposits.

Large Boulders, Subsurface Ocean, Alternate Pod Location and Metal Rich. The pod sits on the left at (50, 221), and a Cool Steam Vent sits 45 cells above it at (31, 262): the colony's first water.

Subsurface Ocean adds about 3,800 tonnes of Salt Water. The middle of the map holds a Water Geyser at (123, 174) and a Iron Volcano at (135, 196), both under 90 cells away.

Geodes, Metal Rich, Slime Molds and Frozen Core. Two Polluted Water Vent vents sit 45 and 60 cells from the pod at (149, 229) and (186, 192), each with 2.8 kg/s: run them through a Water Sieve and water stops being a problem.

Frozen Core adds about 3,300 tonnes of Ice, useful as cooling against the desert heat.

The Spaced Out! Oasisse Cluster is rated Slim as well. Its teleporter target, the Radioactive Swamp Asteroid, has the swamp water and slime biomes the desert lacks. Read the Radioactive Swamp Asteroid guide before the first teleport.

Once one water source runs into the base, Oasisse turns into a copper-and-oil industrial world. Purified water feeds the electrolyzers, oil patches feed a Oil Refinery and plastics, and the large copper ore deposits cover wiring and machines for a long time. Cooling remains the long-term task, so plan a Steam Turbine loop before the refinery heats the base.