Under The Island
Embark on an epic adventure in Under the Island! A 2D action-adventure steeped in ‘90s charm, step into the shoes of Nia, and battle fierce monsters, solve clever puzzles, and explore a world alive with mystery as you race to save your new home before it’s too late.
- Price:$15.99
- Release Date:2/17/2026
- Franchise:Top Hat Studios
- Developer:Slime King Games
- Publishers:
- Last Updated:3/20/2026
- Steam App Id:1583520
Under The Island
- Windows
- Mac
- Linux
- Steam Deck (Verified)
Steam Charts, Stats, and Live Player Count
At the moment, Under The Island has 44 concurrent players online and in-game. This is 87% lower than its previous all-time peak of 342 players achieved on 2/22/2026.
Review History Chart
Track historical review trends and overall ratings for Under The Island. It has received a total of 365 reviews on the Steam store and achieved a Player Score of 86 (Very Positive).
Price History Chart
Track historical price changes and trends for Under The Island. Right now, it costs $15.99 in the Steam Store.
About Under The Island
Under The Island is an Action, RPG, Adventure, and Indie game developed by Slime King Games. On 2/17/2026, it was released on the Steam Store by TBA, Doyoyo Games, and Top Hat Studios, Inc.
Players have rated Under The Island as "Very Positive" out of 365 total reviews on the Steam Store. These are split between 342 positive reviews and 23 negative reviews — an overall 94% positive review rating.
It is available for gamers to download and play for $15.99 which is a 20% discount off its base price. It can also be purchased through Under the Island x Ocean’s Heart, Under the Island x Arietta of Spirits, Under The Crypt, and Under the Island x Kitaria Fables which give a discount off its base price.
It can be played and ran on Windows systems. It is verified by Valve as playable on the Steam Deck and will run well.
It also supports 5 languanges in-game including English, German, Chinese (Simplified), Japanese, and Chinese (Traditional). Each language comes with varying levels of support for the in-game interface, audio, and fully translated subtitles.
According to Steam’s category system, Under The Island supports the following features:
- Single-player
- Full controller support
- Steam Cloud
- Family Sharing
- Steam Achievements
From the Steam community, Under The Island has been tagged with the following user tags:
- Modern
- Lore-Rich
- Fantasy
- Multiple Endings
- Sandbox
- Nature
- Historical
- Puzzle
- Pixel Graphics
- RPG
- Dynamic Narration
- Comedy
- Action RPG
- Open World
- Action
- Adventure
- Singleplayer
- Female Protagonist
- 2D
- Exploration
Media & Sceenshots
Watch the featured video for Under The Island and see the latest screenshots from the Steam Store.
DLC & Related Apps
Under The Island is referenced by 1 other related app in the Steam Store.
| Image | Name | Type | Release Date | Actions |
|---|---|---|---|---|
 | Under the Island (Selections from the Original Game Soundtrack) | Music | 2/17/2026 | View |
Related Bundles
Under The Island is included in 4 bundles in the Steam Store.
| Image | Name | Apps | Packages | Price | Actions |
|---|---|---|---|---|---|
 | Under the Island x Ocean’s Heart | 2 | 2 | $31.48 | View |
 | Under the Island x Arietta of Spirits | 2 | 2 | $17.98 | View |
 | Under The Crypt | 2 | 2 | $25.48 | View |
 | Under the Island x Kitaria Fables | 2 | 2 | $39.98 | View |
Related Packages
Under The Island is referenced by 1 package in the Steam Store.
| Name | Price | Actions |
|---|---|---|
| Under The Island | $16.99 | View |
Supported Languages
Under The Island is available in 5 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | Yes |
| German | Yes | Yes | Yes |
| Chinese (Simplified) | Yes | No | Yes |
| Japanese | Yes | No | Yes |
| Chinese (Traditional) | Yes | No | Yes |
Frequently Asked Questions
Soures & References
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Under The Island data has been sourced from:
- Valve Corporation. (2026, March 20). Under The Island on Steam. Steam Store. https://store.steampowered.com/app/1583520
- Valve Corporation. (2026, March 20). Under The Island. Steam Community Hub. https://steamcommunity.com/app/1583520
- Slime King Games. (2023, July 10). Under The Island. Under The Island. https://slimekinggames.com/