Terrain refers to structures or plant life of sorts, that are typically (with a few exceptions) randomly generated and are not part of the standard map. Terrain always provide some sort of purpose that affects the gameplay in some way shape or form.
Hiding Places
Hiding Places are terrain that can be hidden in by animals for protection. Not all animals can hide in all terrain though.
| Name | Summary | Image |
|---|---|---|
| Anemone | Generates on the ocean floor. Tier 1 to tier 3 animals can hide here. | 
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| Beaver Dam | Generates between the ocean and its surface. Beavers can hide here. Orange food pieces grow on its roots. Slowly landing on the top allows you to walk across it. | 
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| Bush | Generates atop islands. Crabs can hide here. Berries spawn here. | 
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| Igloo | Generates atop glaciers. Penguins can hide here. | 
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| Volcano | Generates on the arctic and deep ocean floors. Produces volcano food, which can be eaten. Tier 1 to tier 3 animals can hide here. | 
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| Shipwreck | One shipwreck always appears on one of the dirt islands that border the ocean and deep ocean. Tier 1 to tier 9 animals can hide here. Produces bubbles that can be eaten. | 
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| Abandoned House | Does not generate randomly, one abandoned house always appears in a specific location to the left of the deep ocean floor. Tier 1 to tier 9 animals can hide here. | 
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Other Terrain
Other Terrain are terrain that cannot be hidden in nor do they fall under any other sort of category.
| Name | Summary | Image |
|---|---|---|
| Island | Generates between the ocean and its surface. Platform for walking. Bushes and trees appear on here. | 
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| Glacier | Generates between the arctic and its surface. Platform for walking. Igloos appear here. Getting onto a glacier requires that you boost, fly, or be pushed atop it. | 
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| Tree | Generates atop islands. Reaching the top of a tree requires that you boost, fly, or be pushed to the top. Apples grow on its leaves. | 
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History
This section highlights all the changes made to terrain in documented updates so far. A full changelog can be found here.
| Update | Changes |
|---|---|
| Pre-November 4th, 2016 (Release) | Added 1 form of terrain: anemone. |
| November 4th, 2016 | New animal (beaver) and a new hiding place: beaver dams. |
| November 5th, 2016 (Night) | Added a new food source below beaver dams. |
| November 24th, 2016 | Added islands, bushes (which crabs can hide in) and trees! |
| January 21st, 2017 | Glaciers now have igloos, which penguins can hide in. |
| February 13th, 2017 | Island sizes are now random (between 1x and 3x previous standard size of islands). |
| March 13th, 2017 (Beta) | Added a new shipwreck hiding spot (designed by Pathos too!) |
| March 14th, 2017 | Added air bubbles leaking from shipwreck (h1637727's idea[1]).
Jellyfish and below can now hide in volcanoes. |
| March 17th, 2017 | An abandoned house appeared in the deep sea. It's said its owner left long ago, after it was attacked by a giant squid and its pet was kidnapped.
(FROM BETA) Added one new hiding place (shipwreck designed by Pathos too!) |