Steam
BestOfficialIn stockMoonstone Island · Region US · Jul 9
$4.99
was $19.99 · −75%
Moonstone Island
Moonstone Island is a creature-collecting life-sim set in an open world with 100 islands to explore. Make friends, brew potions, collect Spirits, and test your strength in card-based encounters to complete your Alchemy training!
OfficialSep 20, 2023 · Studio SupersoftAdventureIndieRPGDualSense Controller SupportDualShock Controller SupportWindows · Mac · Linux
Current best
$4.99
at Steam · Jul 9
All-time low
$4.99
Jul 9, 2026
Stores tracked
2
sources indexed
Review signal
84%
4,954 reviews
Current best · Steam
$4.99$19.99−75%
Observed Jul 9
View best listingObserved low target
$4.99 · based on the previous indexed low
KeyDwarf only tracks observations — checkout happens on the store.
Tracked Stores
Best indexed price $4.99 at Steam.
2/2
View listing
GOG
OfficialIn stockMoonstone Island · Region US · Jul 10
$19.99
How trust is scored: KeyDwarf combines source type, known retailer posture, marketplace risk, activation-region warnings, and source transparency. Checkout and support still happen with the external seller.
Price History
3 observationsBest observed priceAll-time low
All-time low
$4.99
Jul 9, 2026 · Steam
12-week avg
$10.99
3 recent observations
Current vs low
+301%
Current $19.99
Recommendation
Watch for drop
consider setting an alert
Lowest indexed daily price per currency. KeyDwarf tracks listings and does not sell keys.
Media
12 indexedCommon Questions
Where is Moonstone Island cheapest right now?
Moonstone Island is currently indexed at $4.99 from Steam. Publisher, direct storefront, or authorized retail source. Check the linked store's current terms before acting.
What is the historical low for Moonstone Island?
The indexed low for Moonstone Island is $4.99 from Steam, observed Jul 9, 2026. The current indexed price is 301% above that low, so KeyDwarf labels it "Watch for drop".
Is the top source safe?
Steam is labeled "Official store" in the index. KeyDwarf tracks the listing and source risk, but checkout and support stay with the external store.
What is the review signal?
Moonstone Island has a best indexed review signal of 84%.
Can KeyDwarf notify me about a lower price?
Use the alert target control on this page to save a watch target after sign-in.