Critter

Critters are aliens that lay eggs and some species produce materials and/or drop meat when dying. Ranching can be used to increase the number of critters, eggs, and materials. Some critters have different morphs which consume different foods, live at different temperatures, or produce different products.

List of Critters

Image	Name	Diet	Produces	Egg	Baby	Drops	Stable Limit (96 tiles)	Note
	Hatch	Food, Raw Mineral, Organic, Metal Ore	Coal, Refined Metal			Meat	8	Will burrow in soft ground during the day, but will stay active if it can't find a place to burrow.
	Shine Bug	Food, Phosphorite	Light, Decor, Radiation			None	16	Floating/hovering critter, provides a constant source of light and +30 decor in its immediate vicinity. Nice to have in one's base due to the light and decor bonuses. Small health pool and only a small number spawn.
	Pip	Arbor Trees, Thimble Reed	Dirt			Meat	8 (Pip) 24 (Cuddle Pip)	Plants loose seeds into soft blocks and can knock items out of storage bins. Cuddle pips hug eggs and dupes, speeding up incubation.
	Drecko	Balm Lily,Pincha Pepper,Mealwood	Phosphorite, Reed Fiber, Plastic			Meat	8	This creature can be found crawling around in cavities in the Jungle Biome. They are able to cling strongly to any surface, and will freely wander the full perimeter of whatever chamber they are in. They are not hostile and are quite mobile, inevitably wandering away from any chamber they are not trapped in.
	Pokeshell	Rot Piles, Polluted Dirt, Slime	Sand, Pokeshell Molt, Oakshell Molt			Pokeshell Molt, Oakshell Molt, Raw Shellfish	8	Pokeshells will become agressive towards duplicants and other critters if in the vicinity of at least one pokeshell egg.
	Puft	Polluted Oxygen, Oxygen, Chlorine	Slime, Oxylite, Bleach Stone			Meat	6	Floating/hovering critter. Its movement is based on invert pyramid shape, moves center to top, left then right, follows bubbles of contaminated air, prefers going up. Sucks in the closest air bubble, goes up into top of room/chamber on borders of gases then spits out slime. Can follow its own slime consuming again. Won't go under water, but can enter a stream of water from below or from the side (and then die).
	Pacu	Algae, Seakomb Leaf, Seakomb, Seeds	Polluted Dirt			Pacu Fillet	12	Swims in any liquid, can be caught via a Fish Trap, and Critter Trap when flopping.
	Slickster	Carbon Dioxide, Oxygen	Crude Oil, Petroleum			Meat	8	Floats over the floor or liquid, and follows spots of carbon dioxide.
	Shove Vole	Regolith, Dirt, Iron Ore	Solid Tile, Tonic Root			Meat	∞	Burrowing critters that eat the Regolith collected on terrestrial surfaces.
	Gassy Moo	Gas Grass, Plant Husk	Natural Gas, Brackene, Carbon Dioxide, Biodiesel	none	none	Meat	6	Extraterrestrial creatures that feed on grass and plant, excretes gases, and can be milked.
	Morb	none	Polluted Oxygen	none	none	Polluted Oxygen	∞	Spawns from full Outhouses if it filled long enough but can be found naturally, produces contaminated oxygen unless in high-pressure gas, explodes in a puff of Polluted Oxygen or Chlorine upon death. Cannot be Ranched.

Critters in Spaced Out!

Image	Name	Diet	Produces	Egg	Baby	Drops	Stable Limit (96 tiles)	Note
	Plug Slug	Metal Ore / Refined Metal	Hydrogen			Meat	8	Hangs from the ceiling at night providing power to any exposed wires 2-tiles from the ceiling. The amount of power provided is proportional to the hunger of the Slug.
	Divergent	Sulphur & Sucrose	Sucrose & Mud			Meat	8 (Sweetle) 6 (Grubgrub)	Will provide a growth bonus on contact with a plant. Allows Grubfruit Plants to produce full size Fruits instead of Spindly Fruits.
	Beeta	Uranium Ore	Enriched Uranium	1 produced each cycle from the Beeta Hive.		Nuclear Waste	N/A	Spawned as Beetinys from a Beeta Hive, fully grown up it harvests Uranium ore, delivering it to the hive. Hives convert 90% of the mass of uranium ore into enriched uranium. Beetas are inherently hostile to anything that is not them, including other critters.

Critters in The Frosty Planet Pack

Image	Name	Diet	Produces	Egg	Baby	Drops	Stable Limit (96 tiles)	Note
	Flox	Pikeapple Bush, Pikeapple, Bristle Berry, Bristle Blossom / Abyssalite	Dirt , Wood / Glass			Meat	8	Their antlers can be sheared for Wood or Glass .
	Bammoth	Plume Squash Plant, Plume Squash, Nosh Bean, Nosh Sprout, Squash Fries	Bammoth Patty, Reed Fiber, Regal Bammoth Crest			Meat	6	Their wooly coat can be sheared for Reed Fiber.
	Spigot Seal	Nectar, Sucrose	Ethanol			Tallow	8	Seals must be deceased to obtain Tallow .

Critters in The Prehistoric Planet Pack

Image	Name	Diet	Produces	Egg	Baby	Drops	Stable Limit (96 tiles)	Note
	Lumb	Ovagro Fig, Bristle Berry, Bog Jelly	Peat / Algae			Tough Meat	6	When they stomp heavily near Plants, the commotion causes harvestable items to fall to the ground.
	Mimika	N/A	N/A	Produced from the self-harvesting Mimika Bud Plant.	N/A	Mimillet	12	When its leaves dry up, it will harden into a Mimillet.
	Rhex	Hatch, Pip, Shove Vole, Slickster, Drecko, Lumb, Dartle, Divergent	Brine Ice			Tough Meat	6	Their tailfeathers can be shorn for Feather Fiber.
	Dartle	Dewdrip	Bleach Stone ,Chlorine			Meat	24	They are preyed on by Rhex.
	Jawbo	Pacu	Rust			Jawbo Fillet	8	They pose no danger to duplicants.
	Gnit	N/A	N/A			None	24	They are hostile airborne critters primarily bred as food for the carnivorous Lura Plant to produce Amber . Their offspring must be exposed to Liquid in order to survive.

Common traits

Most critters share the following traits:

Survival

• Will take frostbite/scalding damage when exposed to elements outside its livable range (specific range depends on species).
• Aquatic critters like Pacus/Jawbos will be reduced to the flopping state in the absence of substantial liquids.

Drowning

• Critters will drown in liquids after roughly 75 seconds of submersion, with the exception of critter species Pacu, Jawbo, Pokeshell, Spigot Seal, Gnit (larva only)
• Non-aquatic critters, such as hatches, will drown in non-navigable liquids, which is defined as either:
  • 1) a substantial liquid, or a liquid tile with at least 35% mass of its default mass (i.e. 350kg or more for a water tile) or,
  • 2) any liquid cell with either a liquid or solid cell above it (i.e. in a 10g crude oil tile with a solid tile or any amount of petroleum on top of it)

Lifecycle, behavior, and drops

• Both wild and tamed critters age, lay eggs, and have a capped life expectancy (with exception of Morbs, those have no life-cycle, and Gassy Moos, which lay no eggs).
• Juvenile critters take 5 cycles to grow into an adult, with the exception of Beetas, which matures from Beetiny at age 3.
• Critters typically spawn with 90% of their maximum calorie capacity and look for food at 90% of their initial stomach capacity.
• A wild critter does not starve once their calories reaches 0 kcal. Once tamed, a critter carries over the same calories it had when it was wild. Tamed critters are susceptible to Starvation. Higher metabolism (such as from grooming critters) causes critters to lose calories faster.
• Critters lay eggs with the same wildness as their parent. Once tamed, a critter cannot revert to being wild. Tamed critters need a stable food supply to survive.
• Wild critters usually always stay satisfied if they have enough space.
• Critters always spawn mid way of their comfortable temperature range. For example, Shove Vole's comfortable range is between -100 °C / -148 °F and 400 °C / 752 °F, so they spawn at 150 °C / 302 °F.
• Resource conversion can range one hundredfold depending on critter status. Happy and Tamed Critters have 100% production, Wild and Satisfied has 25%, Tame and Glum has 20%. Wild and Glum has only 10% production rate. See also: Metabolism
• Can arrive as a care package by Printing Pod (except Morbs, Beetiny, and Gassy Moos).
• They drop meat or whatever material when they die, no matter how this happens (being killed by a duplicant, dying of old age, drowning, ...). Killing a Juvenile critter will grant the same amount of output, with the exception of Oakshells and Pokeshells.
• The critter drops and byproducts it excretes are at the same body temperature as the critter. This does not include items stored by the critter itself, such as the Water inside Gulp Fish, the gases absorbed by Smog Slug, or the liquids absorbed by Sponge Slug.
• will not actively seek to attack duplicants (with the exception of Pokeshell and Beetas). Some critters will retaliate if attacked.
• Will occasionally make an emote bubble on its current mood (Happy/Glum/Satisfied etc.) This is in place of its normal idle loop (i.e. Pufts may not roam to the top of the room to poop. Lumbs may not roar.)

Movement

Most critters:

• Can't use ladders for pathfinding purposes
• Can get confined when a tile is built on top of them or were idle in a closing door.
• With Pneumatic Doors, Manual Airlocks and Mechanized Airlocks, critters:
  • Can walk through doors & airlocks set to open but will not move through doors & airlocks on locked or on auto
  • Can walk on doors & airlocks, whether open, closed, or auto
  • If standing on a door or airlock that is opened, the critter will continue standing on it
  • If the critter is falling, then:
    • It will continue to fall through any door, whether open, closed, or auto
    • It will land on closed or auto airlocks, but will fall through open airlocks
  • If a critter is standing inside an open door or airlock that is then closed, it will enter a falling state.
    • If there are any doors or open airlocks below the critter when the door closes on it, it will fall down.
    • If there is a solid tile below the critter, it will remain trapped in the closed door.

Hatch and Morb, as walking critters, share the traits:

• Can walk, jump across 1 tile gaps, climb diagonally 1 tile, and jump up diagonally 1 tile to left/right and 2 tiles up/down.
• Babies can't jump tile gaps, or up/down.
• Non-aquatic critters sometimes jump into a puddle of liquids that's less than 1 tile thick.

Critter Moods

The happiness of a Critter affects their critter metabolism as well as their reproduction rates. A critter can either be Miserable (-10 or less), Glum (-9 to -1), Satisfied (0 to 3), or Happy (4 or more). Miserable, tame critters have a -80% metabolism offset, but 0% reproduction rate. Miserable critters also have no scale growth. Glum, tame, critters have -80% metabolism offset and 100% reproduction rate. Satisfied critters have no metabolism offset and 100% reproduction rate. Happy critters have no metabolism offset and 1000% reproduction rate.

While wild, satisfied critters have a base metabolism rate of 25% and the glum metabolism offset is only -15%.

Babies further multiply their metabolism by a factor of 0.1.

• Satisfied × Tame: 100%
• Satisfied × Tame × Baby: 10%
• Glum × Tame: 20%
• Glum × Tame × Baby: 2%
• Satisfied × Wild: 25%
• Satisfied × Wild × Baby: 2.5%
• Glum × Wild: 10%
• Glum × Wild × Baby: 1%

Happiness	Metabolism	Reproduction Rate
-10	20%	0%
-9	20%	100%
-8	20%	100%
-7	20%	100%
-6	20%	100%
-5	20%	100%
-4	20%	100%
-3	20%	100%
-2	20%	100%
-1	20%	100%
0	100%	100%
1	100%	100%
2	100%	100%
3	100%	100%
4	100%	1000%

• Tamed critters have a base happiness of -1
• Crowding reduces happiness for each critter over the room carrying capacity
• Grooming and Critter Fountain increases happiness by 5
• Critter Condo and Water Fort increases happiness by 1
• Confined reduces happiness by 10
• Starvation reduces happiness by 10
• Body temperature outside of the comfort range reduces happiness by 1
• Drowning reduces happiness by 100

Space Requirements

(See Also, Stable)

Critter
Required Space	12	16	12	12	12	12	4	12	8	16	12	12	16	12	16	12
Max Critters in 96 Tile Stable	8	6	8	8	8	8	24	8	N/A	6	8	8	6	8	6	8

• Pufts, Gassy Moos, and Grubgrubs (Spaced Out) all have the highest Minimum Space Requirement (16 tiles), so fewer can fit in one room at a time.
• Cuddle Pips have the smallest Minimum Space Requirement (4 tiles, four times less than a Puft), so many can comfortably live in the same room.

Confined

"This critter is trapped within a door, tile, or confined space" "Sounds uncomfortable!"

The Critter is in a Room that is too small to meet the Space Requirements of that type of Critter (shown above). This debuff reduces Happiness by 10 and reduces Reproduction Rate by 100%, regardless of any other Reproduction Rate increases.

• This debuff overrides the Crowded and Cramped debuffs, and is seen as the most severe of the three.

• Left: a room with 16 tiles (4x4) that is comfortable for a single Puft.
• Right: a room with 12 tiles (3x4) that is not comfortable for any Pufts.

Crowded

"This critter isn't comfortable with so many other critters in a Room of this size."

A Critter is Crowded when the critter population requirement (the sum of every critters' personal space requirement within the room) exceeds the current size of the room. The critter's happiness decreases by this difference, divided by that critter's personal space requirement (rounded up).

• In a 96 tile room, there are 5 Rhexes and 4 Dartles. The sum would be $5\times 16+4\times 4=96$, which is not greater than 96. Therefore, no critters feel crowded.
• In a 80 tile room, there are 5 Rhexes and 4 Dartles.The sum would be $5\times 16+4\times 4=96$, which is greater than 80. The difference is 16, so both the Rhexes and the Dartles will feel crowded. The Rhexes will have a happiness penalty of -1, while the Dartles will have a happiness penalty of -4.
• In a 91 tile room, there are 5 Rhexes and 4 Dartles.The sum would be $5\times 16+4\times 4=96$, which is greater than 91. The difference is 5, so both the Rhexes and the Dartles will feel crowded. The Rhexes will have a happiness penalty of -1 ($5/16$ rounds to 1), while the Dartles will have a happiness penalty of -2 ($5/4$ rounds to 2).

For aquatic creatures, the pool size is used instead of the Room size and only aquatic creatures are counted. The pool size is the number of connected, non-navigable liquid cells. A non-navigable liquid cell is either a liquid cell that exceeds 35% of its default mass, or a liquid cell with a solid/liquid cell on top. Non-navigable cells can drown non-aquatic critters.

Cramped

"This Room will become too crowded once all nearby Eggs hatch" "The selected Critter has slowed it's Reproduction to prevent further overpopulation."

A Critter is Cramped when the sum of every critter's and egg's personal space requirement within the room exceeds the current size of the room. At least 1 egg is required to trigger Cramped.

Similarly for aquatic creatures, only the pool size is used and only aquatic creatures or eggs are counted.

• While very similar in calculation to Crowded, this de-buff only decreases Reproduction Rate, yet can still affect Critters that are Crowded
• It also includes Critter Eggs to the total Critter count instead of just the amount of Critter in the Room.
• As stated above, Confined overrides the Cramped status, as it already affects Happiness and Reproductive Rate.

Exceptions

• Shove Voles/Morbs do not contribute to any crowding/cramping, as they have a personal space requirement of 0.
• Shove Voles cannot be confined.

External links

• Critter debuff and reproduction mechanic