Moonstone Island Account
You receive login credentials to an account that already owns this game. The game is not added to your own library and the account may have usage conditions (e.g. offline mode). If you want a key to redeem on your own account, pick a non-account edition instead.
- You receive login credentials, not a key you own — sign in to the game's launcher with them to play.
- Do not change the password or email; doing so can lock you out permanently.
- The account may be reclaimed or banned by the platform, and some titles are offline-only.
- Region doesn’t apply — an account activation works anywhere.
- No refund once the login has been revealed.
Can be activated in United States
WindowsScreenshots & trailer
Buy Moonstone Island key
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!
Spend time on islands in the sky! Following your village's tradition, you must move to an island in the sky to complete your Alchemy training. Armed with a team of nature spirits, magical potions, and the support of your new friends, you'll explore ancient temples, dangerous dungeons, and hostile biomes to uncover the dark secret of Moonstone Island.
Befriend NPCs, become a member of the community, go on dates, fall in love, and marry the villager of your dreams!
Build a new home on any of the 100 islands in your procedurally generated world
Grow crops and flowers to brew potions and tame spirits. Cultivate ingredients to cook your fave dishes for fun and stat bonuses!
Customize and decorate your home to make it uniquely yours with over 300 decorations
Travel by balloon, broom, and glider through unique biomes to reach the outer edges of the world to uncover the secrets of your floating home in the sky
Tame and befriend wild spirits to fight alongside you - Over 70 Spirits to tame!
Discover and explore dungeons to earn upgrades, collect loot and uncover secrets - Or take on the INFINIDUNGEON for neverending battles and rewards!
Optimize your character with unique skills and upgrades
Craft dozens of items and vehicles to prepare for the treacherous wilderness
Since we launched on September 20, 2023 we’ve been working hard to add more functionality and fun to the game, including:
Cooking!
41 new cards!
Over 50 new and free decorative items!
Marriage!
Infinidungeon!
Character Customization – Dress your alchemist up in adorable fits to reflect your play!
More QoL improvements than we can count!
How to activate Moonstone Island on Steam
- 01
Buy & receive your code
Complete checkout — your code lands in your inbox in ~30 seconds, and is always available under Orders in your Gameplug account.
- 02
Open Steam
In the desktop client: top-left menu "Games" → "Activate a Product on Steam…" (or use the web link below).
- 03
Enter your key
Paste the key (format XXXXX-XXXXX-XXXXX) and accept the Steam Subscriber Agreement.
- 04
Install & play
The game joins your library permanently — install it on any machine you sign in to.
Code not working? Contact support — confirmed-invalid codes are replaced or refunded.
