Bite
Bites enemies at close range. Send it into combat with an attack whistle.
- WhistleAttack This Target
Base damage12
- Thatch66
- Wood-
- Stone-
- Metal-
- Tek-
CreatureShoulder Pet

Cosmo is a small carnivore that functions as a shoulder pet. It is tamed passively by offering food and provides no weight reduction or gathering benefits. Its primary value lies in its ability to be carried by larger creatures for transport and utility roles.
It can be airlifted by Argentavis, Desmodus, Griffin, Karkinos, Megalosaurus, Tropeognathus, Kaprosuchus, Procoptodon, Pteranodon, Quetzal, Tapejara, or Tusoteuthis for fast deployment.
| Stat | Base | Wild +/lvl | Tamed +/lvl | Wild growth |
|---|---|---|---|---|
| Health | 115 | +23 | +4% | |
| Stamina | 100 | +10 | +2.5% | |
| Torpidity | 60 | +3.6 | +0% | |
| Oxygen | 200 | +24 | +2.3% | |
| Food | 450 | +45 | +2% | |
| Weight | 70 | +1.4 | +0.8% | |
| Melee damage | 100% | +5.5% | +11% | |
| Movement speed | 100% | +0% | +1% |
Cosmo is tamed passively by feeding it directly. The best food is Plant Species Z Seed, which provides the fastest taming. Ascerbic Mushroom also works but is significantly slower.
No immobilization is required. The taming process takes about 1 minute with Plant Species Z Seed at level 224 with 100% effectiveness. Use the calculator below for your settings.

Bites enemies at close range. Send it into combat with an attack whistle.
Base damage12
Default PC controls. Custom keybindings may differ.
Cosmo has recorded spawns on 17 maps: Aberration, Astraeos, Valguero, Genesis, Althemia, Amissa and 11 more. On Astraeos, Cosmo spawns only in caves: The Verdant Underhollow.
Compare recorded corpse resource yields by harvesting tool.
Each harvest event rolls resources independently. Actual yields vary.
Killing Cosmo yields Hide and Raw Meat. The Hatchet yields the most Hide, while the Pick favors Raw Meat.
BreaksThatchWoodStoneMetalTek
Base damage12
ResistsWeak to
HitboxesHead ×3
Base damage at level 1, 100% taming effectiveness, no imprint. Open damage calculator
Cosmo takes +120% more damage from Instant HurtDinos, making it highly vulnerable to instant-damage sources. It is fully resistant to Radiation and Mining Drill Harvest, taking 100% less damage. Explosion and melee attacks with a metal weapon also deal increased damage. Level Health and Melee Damage to survive longer in combat.
Cosmo has a head hitbox that takes 3× damage. Targeting the head speeds up knockout.
Can break Thatch only. Build at least in Wood.
This page details Cosmo's stats, taming requirements, breeding conditions, harvest output, and combat properties. For further planning, refer to the taming calculator, breeding calculator, and spawn map.