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Under The Island

RPGAction RPGExplorationFemale ProtagonistPuzzle92% positive on Steam
Slime King GamesReleased 17 Feb 2026
4 active offers across 4 stores

All offers (4)

Compare the platform, region and delivery before you buy.

Standard Edition 3 offers · EU & Global

  • Under The Island Steam KeyActivation key
    SteamGlobal
    Lowest price€16.92
    View deal
  • Under The Island PC Steam CD KeyActivation key
    SteamGlobal
    €16.99+ payment fee
    View deal
  • Under The Island (Global) (PC) - Steam - Digital KeyActivation key
    SteamGlobal
    €24.57no Plus, no Protect
    View deal

Official store Steam · price for Germany

  • Steam store pageDirect purchase
    SteamGermany
    €19.50€14.62No fee
    View on Steam

You buy directly from the store. "+ service fee" or "+ payment fee" means the store adds a fee at checkout; you see the final price there before you pay. We may earn a commission when you buy through our links.

Best price over the last 32 days

€20.00€18.00€16.00€14.0011 Oct 202611 Nov 2026
  • Lowest €16.9111 Nov 2026
  • Highest €16.9911 Oct 2026
  • Today €16.91

The cheapest EU or Global key per day across all compared stores; the dashed line is the Steam price.

Buy Under The Island key: current price comparison

Where is the Under The Island key cheapest?

The cheapest Under The Island key that activates in the EU currently costs €16.92 at CJS CD Keys. Keyfinder compares 4 offers from 4 shops for this price. Prices are refreshed hourly; region, edition and any checkout fees are shown on each offer.

What does the Under The Island key cost on each platform?

The cheapest key per platform right now: PC €16.92 at CJS CD Keys and Xbox €17.18 at Eneba.

What was the lowest Under The Island key price in the last 32 days?

€16.91 on 11 Nov 2026, for the standard edition that activates in the EU. The highest daily low in that time was €16.99 on 11 Oct 2026; today the cheapest key costs €16.91.

Which Under The Island keys activate in the EU?

4 offers are marked EU or Global and activate in Germany and the rest of the EU. Keys for other regions are listed separately. The keys on offer are for Steam and Xbox.

What a game key is and how to read an offer

How do I activate the Under The Island key?

The cheapest key activates on Steam. You redeem it there with the code the shop sends you after you pay.

How to redeem a Steam key

Is it safe to buy a Under The Island key from CJS CD Keys?

Before you pay, check three things on the offer: the region (EU or Global for Germany), the edition and any fee added at checkout. Keyfinder shows all three on every offer. Our CJS CD Keys check covers who runs the shop, its fees and its regions.

Is CJS CD Keys legit? Read our check

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About 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.

Developer
Slime King Games
Publisher
Top Hat Studios, Inc.
Release date
17 Feb 2026
Steam
View on Steam