- Not to be confused with the 泰拉悠悠球
Cages cannot be opened, broken, or un-crafted, so once a critter is crafted into a cage with the Terrarium, that particular Critter can no longer be released.
- Some 小动物s such as the 蝴蝶 and the 萤火虫 cannot be put in Terrarium, but in jars, 玻璃瓶s, and in the case of 金鱼, in Water Bottles.
- 企鹅s, 兔兔, and 金鱼 which have been put into Terrariums do not become corrupt on 血月s.
- To cage every critter in a terrarium requires 28 terrariums, which takes 448 pieces of 玻璃 (or 896 沙).
- Gold Critters have a unique sprite with golden lids and bottoms.
- 主机版 1.08：Added the Mallard Duck Cage.
- 主机版 1.07 节日更新：Introduced the Terrarium and caged critters (Bird, Black Scorpion, Blue Jay, Bunny, Cardinal, Frog, Glowing Snail, Grasshopper, Mouse, Penguin, Scorpion, Snail, Squirrel, and Worm).
- New critter cages: Grubby Cage, Sluggy Cage, Buggy Cage, Red Squirrel Cage, Enchanted Nightcrawler Cage
- Introduced golden critter cages: Gold Bird Cage, Gold Bunny Cage, Gold Frog Cage, Gold Grasshopper Cage, Gold Mouse Cage, Gold Squirrel Cage, Gold Worm Cage.