UNDER THE ISLAND (Switch): all the updates (latest: Ver. 1.2.0)

Lite_Agent 2 April 2026 Slime King Games, Top Hat Studios, UNDER THE ISLAND

On this page, you will find all there is to know about the various updates for UNDER THE ISLAND on Nintendo Switch.

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UNDER THE ISLAND – Ver. 1.2.0

Release date: April 2nd 2026
Patch notes:

added reward for 100%ing
added progress tracker for completionists
added borderless fullscreen as an option
added that a player can catch fish with the left trigger button too
re-balancing and changes to the monkey arcade mini game
adjustments to desert valley so that soft locked players can get unlocked.
improved controller and keyboard input detection
added solids to the big trees in the forest hidden clearing
fixed crash in the sawmill when you collide with the smallest piece of wood on the conveyor belt by running into the saw
fixed crash that rarely happened when you quit the snowboard mini game via menu
fixed a very rare bug that made one of dungeon 1s treasure chests to not be displayed on the map anymore
fixed a bug where the player can walk into the deep water in the save room before Big Barlu
made dirt and snowballs, that are there to fill holes, disappear after they being used.
fixed that some bird switches went back to inactive after you activated them -fixed a missing collisions on bran bran peak lowest level
fixed an jump-to-out-of-bounds bug in the pyramid dungeon
adjustments to dungeon 2 save room before boss to prevent soft-lock
fixed a crash that would occur during a wood-log-guy attack while a cut scene was played
fixed a bug that caused to reduce the items twice the price of an upgrade, when a player pressed to rapidly the accept button (upgrade shop)
fixed a soft-lock that can rarely happen to a player in the save room before the second boss of the game, where the turtle puzzle doesn’t work anymore
fixed an out of bounds bug in the escape sequence of the old mines collapse room
fixed a soft-lock in the sleep chamber mini dungeon in the forest swamp area
fixed that the player would lose a bomb- or treat bag upgrade when he obtains the upgrade without the fitting bag

Additional notes: none
Source: Slime King Games (Steam)

UNDER THE ISLAND – Ver. ???

Release date: March 11th 2026
Patch notes:

No patch notes available. This update brings the following to the game:

fixes many shader issues like water and grass don’t move or are displayed glitchy.
fixes bug preventing players from obtaining the last two tapes

Known issues:

crash during the twins subquest

Additional notes: none
Source: Slime King Games (Bluesky)

How to download updates for UNDER THE ISLAND on Nintendo Switch?

To download the updates for UNDER THE ISLAND, you have three options:

let the console do its thing if you have automatic downloads activated, and didn’t completely turn it off

If not…

try to launch the game from the Home Menu while being connected to the internet. You should get a prompt when doing so: simply follow the instructions on screen;

select the game > press either + or – to go to the Options page > select Software update > select Via the Internet.

To check that you have the latest version installed, simply select the game on the Home Menu, and press – or + to go to the Options: the version number is displayed just below the game title.