Kaiju Alpha Islands
Checked:
You choose a spawn island from the map selector that appears after you pick a kaiju.
The five islands
| Island | Shape | Buildings | What it is like | Best for |
|---|---|---|---|---|
| Tokyo | U-shaped, with a large bridge joining the two arms | Very dense, most of it destructible | The most visited island in the game, and the least peaceful. Expect a fight the moment you land. | Cell and XP farming on buildings — if you can survive the traffic |
| Isla De Mara | Volcano plus a large city | Substantial city block | Big enough that fights tend to cluster in one area and the rest stays quiet | Farming with an escape route. It also holds the game's tallest terrain. |
| San Francisco | Two islands joined by a large bridge | Moderate | Not especially popular, which is exactly why some players use it | Roleplay and staged fights on the bridge |
| Forest | Grassy island ringed by tall dirt walls | None — the only island with no man-made structures | The quiet one. Most players never go. | Levelling in peace: the trees can be destroyed for cells and XP just like buildings |
| Thailand | Small | Few | Unpopular because of the lack of space | Destroying things without being interrupted |
Picking an island for what you are actually doing
Farming cells: the trade is density against interruption. Tokyo has the highest ceiling per minute and the highest chance that a bigger kaiju ends your run; the Forest has a lower ceiling and almost no risk. Isla De Mara sits between the two — a real city block, but big enough that the fighting concentrates in one area you can simply avoid. Routes are on the cell farming page.
Hunting Monster Zero skulls: only one skull exists per server, so you are sweeping and rejoining rather than fighting. Small quiet islands are searched faster and interrupted less; Tokyo's building density works against you here, because geometry is exactly what hides a world object. See the skull page.
Roleplay and staged fights: San Francisco's bridge is the reason that island has a following despite being unpopular for farming.
Secret Arena Island
How to find it: Follow the directional sign on the volcano island.
What is there: A large open battlefield with a central throne, two massive insectoid statues facing the arena, and two smaller statues at the entrance.
What it does: None known. The community wiki records no gameplay mechanic attached to it, and it is variously read as an easter egg, a testing area, or a teaser for something unreleased. We have not found a developer statement either way.
Worth being precise about the wording: "no known purpose" is not the same as "nothing there". The arena is real and reachable. What nobody has produced is a mechanic attached to it, and until someone does, calling it a boss arena or an upcoming game mode is a guess.
How current is this
Island pages on the community wiki. These are among the wiki's older pages — the roster has changed far more since than the map has, but treat descriptive detail as dated rather than certain.