Ruby and the Lost Crystals
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About Ruby and the Lost Crystals
Ruby and the Lost Crystals is a solo third-person puzzle adventure set among the ruins of a forgotten civilisation. You switch between Ruby and Sapphire, a magical stone fairy, to solve puzzles, activate mechanisms and explore two handcrafted zones filled with ancient ruins, magical devices and hidden secrets.
Two characters
Ruby can interact physically with the environment: she pushes blocks, turns capstans, activates pressure plates and jumps. Sapphire shoots projectiles to illuminate crystals, activate platforms and swap objects’ positions. You switch between them to solve puzzles involving logic, spatial reasoning, timing and magical interactions.
Puzzle mechanics
New mechanics appear in each area and combine as the game progresses. You illuminate lost crystals, redirect and combine coloured lasers, teleport objects to create paths and platforms, move blocks and platforms to reach new areas, and interact with pressure plates, rotatable structures and long-range triggers. The handcrafted puzzles encourage experimentation and observation, aiming to challenge without overwhelming.
Story and presentation
The adventure includes light dialogue, stylised visuals and an evolving original soundtrack. Its puzzles and character abilities form a calm, focused solo experience built around thoughtful interaction and cooperation between Ruby and Sapphire.
Frequently asked questions
Yes. Ruby and the Lost Crystals is free to play on Steam, so there is nothing to buy to start playing.
The minimum requirements for Ruby and the Lost Crystals are: Windows 10, GeForce GTX 750 Ti, Intel Core i5-2400, 8 GB RAM, 3 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Ruby and the Lost Crystals is a single-player game.
Yes. Ruby and the Lost Crystals is the full base game. You need nothing else to play it.











