We Love It's Guide to…
As newcomer Nia, explore Seashell Island, solve tool-based puzzles, battle creatures, and uncover why the island is sinking.
Released 17 Feb 2026
Explore Six Island Regions
Unlock New Routes
Solve Dungeon Puzzles
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.
Developed by Slime King Games · Published by Top Hat Studios, Inc., Doyoyo Games
Nia has just moved to Seashell Island when she learns it is destined to sink beneath the ocean. With local girl Avocado, she investigates the island’s ancient mysteries and searches for a way to protect her new home.
Explore interconnected regions, caves, and dungeons from a top-down perspective. Fight unusual creatures, solve environmental puzzles, uncover hidden paths, and meet island residents through conversations and side quests.
Find tools and abilities that help Nia tackle obstacles and reach new areas, then collect treasures and materials to upgrade her gear. Optional activities include minigames, errands for locals, and befriending animals that can lend a hand.
In this sample, players often enjoy roaming the island for secrets and seeing new tools open up routes and puzzles. Reviewers also praise the colorful pixel art, music, characters, and nostalgic classic-adventure feel. Some find the combat and puzzles too simple or repetitive, while others criticize the map and limited quest tracking for making it easy to lose track of places to revisit; several also note localization problems.
Uncover a Sinking Mystery
Step into the role of Nia, a newcomer to Seashell Island - and join forces with local girl Avocado to investigate an ominous fate - the island's destined to sink beneath the ocean! Explore colorful regions, battle strange creatures, and uncover the ancient mysteries that could threaten your new home.
Classic Top-Down Adventure
Journey across a lush island, brought to life with vibrant pixel art and timeless top-down exploration. Delve into hidden corners, uncover secrets, and face dangerous foes across diverse, interconnected biomes.
Six Distinct Regions to Explore
From eerie sentient greenhouses, to frozen caverns, and chaotic sawmills, each biome holds its own dangers, upgrades, and treasures to uncover! Become the champion of the cook-off, reunite lost cats, and dodge the rage of the cereal pirates.
Strange Enemies & Unusual Tactics
Face off against vomiting eggplants, tunnelling wolves, and other bizarre creatures. Use artefacts, loot, and new abilities you discover to turn the tide of battle. Befriend animals and see if they can help you on your adventure - particularly if you give them treats!
A Cast of Memorable Characters
Meet the island’s quirky inhabitants, each with their own personality, story, and a role to play in your adventure. Forge friendships, lend a hand, and see how they can aid you in return.
| Platforms | Windows |
|---|---|
| Achievements | 33 |
| Age ratings |
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| Controller support | PlayStation, Xbox |
| Controller required | No |
| Demo | View demo on Steam |
| DLC / extras | 1 listed on Steam |
| Website | Official website |
