Oasisse Asteroid

Oasisse Asteroid is an Asteroid Type in the game of Oxygen Not Included. It features lots of very hot Sand surrounding the starting biome and taking up most of the map, and, like Verdante Asteroid, always has the Irregular Oil modifier even if it is not rolled during worldgen. Due to combination of early challenges, Oasisse Asteroid can be considered the most difficult preset in the game.

Biomes

Example Oasisse world. Notice the huge amount of hot sand and scattered Oil Biome patches.

Oasisse Asteroid is composed of following Biomes:

• Forest Biome
  • Start variant
  • Mini Water variant
  • Mini Oxygen variant
  • Mini Metal variant
• Temperate Biome
  • base version
  • Desert variant
• Swamp Biome
• Caustic Biome
• Tide Pool Biome
• Volcanic Biome
• Oil Biome
  • Patch variant
• Space Biome

Three Biomes are missing in Oasisse:

• Rust Biome
• Barren Biome
• Frozen Biome

Map Layout

Location / Distance	Biome	variants
Start Point	Forest	Start
1	Forest	Mini Metal, Mini Oxygen, Mini Water
2	Temperate	Desert
3	Temperate	base version, Desert
3	Oil	Patch
4	Swamp, Caustic, Tide Pool, Temperate
5-999	Swamp, Caustic, Tide Pool
Bottom	Volcanic
Top, 1	Space
Top, 2	Temperate	Desert

Important Resources

Oxygen

There are several challenges in the early game as Forest Biome contains little Water that can be electrolyzed into Oxygen, and any other supplies of water require significant digging to reach.

Water

Oasisse has significantly less natural Water in the early game due to sand taking up most of the map. The player will have to invest in processing Polluted Water from a Swamp Biome, or Salt Water from Tide Pool Biomes.

Polluted Water

Swamp Biomes containing Polluted Water start further out than normal.

Raw Minerals

Forest Biome has large quantities of Igneous Rock. Swamp Biome and Tide Pool Biome have Sedimentary Rock. The desert is ringed with Sandstone.

Metal Ore

Forest Biome has large quantities of Aluminum Ore. Caustic Biome provides Iron Ore. Swamp Biome provides Gold Amalgam. The desert contains bands of Copper Ore.

There is no natural Wolframite.

Reed Fiber

Thimble Reed is available in Swamp Biome.

Crude Oil

Oil Biomes can occur at any height throughout the map.

Agriculture

Following Plants can be domestically planted:

Mealwood

Balm Lily

Dusk Cap

Thimble Reed

Waterweed

Following Plants can be domestically planted after Water supply is available: Bristle Blossom Oxyfern

Following Plants can be domestically planted after Polluted Water supply is available: Arbor Tree Pincha Pepper

Following Plants are not available in Oasisse:

Dasha Saltvine

Nosh Sprout

Sleet Wheat

Wheezewort

Ranching

Following Critters are available in Oasisse and can be tamed:

Hatch

Pip

Shine Bug

Drecko

Pokeshell

Puft

Slickster

Shove Vole

Industry

Tungsten is not available in Oasisse due to lack of Wolframite, unless the map has glaciers or a frozen core.

Heat Management

Heat management is a challenge in Oasisse. The starting area lacks Abyssalite walls and is surrounded by swathes of 70°C hot sand, immediately putting the player on a timer.

Worse still, The Frozen Biome is not available in Oasisse by default, so there will be no Anti Entropy Thermo-Nullifier. Although, Wheezeworts can be generated by additional World Traits, such as Frozen Core or Large Glaciers.

Trivia

• Oasisse is named Oasis in game code.
• Oasisse seeds generally have more oil reservoirs than other asteroids, up to 64 oil reservoirs have been recorded on Oasisse maps and no other asteroid types have managed to come close to so many oil reservoirs.