Crystal Caves
Released May 2014
Enter an underground world of treasures and traps in Crystal Caves, a colorful EGA game that rivals any commercial game with its arcade quality, puzzles and graphics. As Mylo Steamwitz, enter cave after cave of adventure, gathering teasures and evading countless hazards.
86% positive · 122 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to buy
Steam $4.99
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Evaluation
Crystal Caves is a classic DOS-era platformer originally released by Apogee Software that was brought to Steam on May 5, 2014. The game shipped as a complete, self-contained package containing all three episodes: "The Trouble with Twibbles," "Slugging it Out," and "Mylo Verses the Supernova." There is no DLC, no season pass, and no announced future content of any kind. The developer has made no news posts of any substance since the Steam release. This is a preserved classic that launched fully complete — there has never been a post-launch content cycle, and no content has been promised beyond what shipped on release day.
Evidence
Store description presents the game as a complete three-episode package with no mention of planned updates, additional content, or ongoing development.
No developer news posts of any relevance have been published — the developer has made no announcements, patch notes, or content communications via Steam.
Media
Details
Developer
Publisher
Apogee Entertainment
Achievements
—
Platform
Windows, macOS
Controller
partial support
Steam Deck
Not rated
Players
Single-player
About this game
The game begins with Mylo rocketing to the Altairian star system on a simple treasure hunt. But what happens is far more dangerous than even Mylo bargained for. He enters an underground world of chambers full of alien technology and traps. Strange alien creatures and robots inhabit the caves, protecting the priceless crystals from money-greedy explorers.
There are three unique episodes to the Crystal Caves saga: "The Trouble with Twibbles", "Slugging it Out", and "Mylo Verses the Supernova". Each episode has a unique story twist and graphics. Can you help Mylo strike it rich and quit his day job?
Alien Acrobat: Mylo can walk up-side-down - some levels have such low gravity that the recoil from Mylo's laser pistol can knock him into other dangers!
Brave New World: Lightless levels, falling hammers, egg-dropping alien bats, free-roaming slither eyes, web-shooting alien spiders, and much, much more!
Controller Support: Partial Xbox 360 Controller support.
There are three unique episodes to the Crystal Caves saga: "The Trouble with Twibbles", "Slugging it Out", and "Mylo Verses the Supernova". Each episode has a unique story twist and graphics. Can you help Mylo strike it rich and quit his day job?
Features
Alien Acrobat: Mylo can walk up-side-down - some levels have such low gravity that the recoil from Mylo's laser pistol can knock him into other dangers!
Brave New World: Lightless levels, falling hammers, egg-dropping alien bats, free-roaming slither eyes, web-shooting alien spiders, and much, much more!
Controller Support: Partial Xbox 360 Controller support.
Are these done yet?
Last evaluated Jun 28, 2026
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