Screenshots
Watch trailer on Steam ↗The UNDA Legacy
Squirrelation Games · Published by Squirrelation Games
Last updated 28 Sept 2026
An atmospheric 3D puzzle game based on the principles of wave physics. Explore the mysterious Roursus island and solve over 25 puzzles using reflection, interference, and resonance. Uncover the fate of a vanished research team in a peaceful world where science meets philosophy.
Adventure, Indie · More free games
About this game
You are an industrial spy sent to Rursus Island, once the base of the UNDA research team – now abandoned, overgrown and full of mysteries. Use a compass and map to find your way, overcome various obstacles with a grappling hook and other tools, examine your findings and report everything to your management.
As you progress through the game, you’ll come across documents, audio recordings and clues in your surroundings that reveal the secret behind the UNDA team’s project – and the philosophical disagreements that may have led to its mysteriously abrupt closure. Fortunately, Rursus was left with plenty of clues, so it’s up to you to uncover all its secrets.
Solve over 25 wave-based physics puzzles: use reflections, interference and resonance to make your way through the island’s forgotten laboratories and ruins.
Every puzzle you solve brings you closer to uncovering the legacy of the UNDA project.
Game features:
Unique puzzles based on the principles of real-world waves
A peaceful, atmospheric 3D world with a distinctive visual style
A rich story that unfolds through exploration and discovery
A vast island full of secrets, diverse stories and paths to choose from
System Requirements
Will my PC run this? →Minimum
- OS: TBD
- Processor: TBD
- Memory: 2 GB RAM
- Graphics: TBD
- Storage: TBD MB available space
- Sound Card: TBD
Recommended
- OS: TBD
- Processor: TBD
- Memory: 4 GB RAM
- Graphics: TBD
- Storage: TBD MB available space
- Sound Card: TBD
Supported Languages
Latest news
Patch NotesOfficial
Demo Patch 1.0.1 - Puzzle Fixes, QoL & Gameplay Polish!
Hello everyone! Thank you all so much for playing The Unda Legacy Demo and sharing your feedback! We’ve been hard at work polishing gameplay and fixing reported bugs. Demo Patch 1.0.1 is now live! Here is the full list of changes and fixes included in this update: Puzzles- Fixed numerous unintended puzzle solutions and skips across multiple puzzles- Fixed numerous unintended parkour entrances into puzzles- Fixed various spots where players can get stuck or die- Fixed various spots where players can steal reflectors from puzzles- Door padlocks now open using movement controls (WASD by default) Gameplay & Mechanics- Spamming the grappling hook no longer crashes the game- Fixed a scenario where player loses their loot after death while it also disappears from the map- Improved bike camera, players can now mount and dismount using the same button- Added a small reward at the top of the Radio Tower for climbing it- Fixed ability to pick up loot through the Command Centre’s walls- Fixed a softlock caused by the radio dialogue triggering while reading a noteUI & QoL Improvements- Subtle glow to the Personal Journal and Rourus Map added- Personal Journal now removes all items from hands when opened- Journal UI is more visually responsive to the input, some font sizes increased, inventory item labels length fixed- Interaction hint for the Grappling hook and additional one for a Personal Journal added- Multiple typos, text inconsistencies and other issues fixed- Exiting the Settings Menu from the Pause Menu now only closes the settings, not the full menu- Notes can now be closed with the ESC button and scrolled using the mouse - Added DX12 launch option (not properly tested yet, but may solve some performance issues)Audio, Visuals & World- Fixed scenarios where the player footstep sounds would partially disappear after loading from save- No-rain zones tweaks for the hut and other buildings- Fixed a scenario where the player dies in the intro and rain stays on forever- Thunder...Read full article on Community Announcements (Squirrelation Games)
