Riverside Crab Egg
Riverside Crab Egg is a common throwable item.
Can be used to spawn a crab called riverside crab.
These “eggs” are really just highly incubated versions of creatures, used by altas during research, often for simulation purposes, which is why they tend to be friendly to their owner.
Ingame
Species descriptions:
- Alta: Tastes well with salad. And also very cute. I am not a bit conflicted on how I should feel about this.
Sources
Can be obtained via 
Spawnable Item Pack or 
Technical Information
- In-game ID:
ct_riverside_crab_egg - Power:
1.0 - Rarity:
Common - Tags:
common,monster_egg,spawner,throwable - File:
/items/active/alta/spawners/critters/ct_riverside_crab_egg.activeitem