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    Mystery Island II
    Version 2.0.2
    You are a Navy Seal currently serving aboard the USS Volarus when your submarine is destroyed by an unidentified vessel. After washing up on the beach of a tropical island you realize saving the fate of the human race is in your destiny.
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Adventure Awaits!

In typical retro-gaming fashion, Mystery Island II adopts a design similar to the classic game Myst! Mystery Island II is a port of our old HyperCard game so that it can be enjoyed on modern systems today.

Your name is Lt. Steven Bushell, and you are currently stationed aboard the USS Volarus, a US nuclear submarine.

While on a routine patrol of the Pacific Ocean, the USS Volarus is mysteriously destroyed! A Russian nuclear warship seems the most likely possibility. However, there were certain unusual aspects of the attack which left you wondering if that was a correct assumption afterall.

Enjoy Mystery Island II on either a Mac or PC!
Take yourself back in a time machine to 1990s gaming as you unlock the secrets of Mystery Island. No special effects. No voice acting. Raw, unadulterated, corny gameplay!
All of the music featured was composed and performed by Mark Sumner!

The Mission

You alone manage to escape the explosion of the submarine alive. After days of drifting in isolation amidst the vast ocean in nothing more than a life raft, you wash upon a tropical island. Your new mission: pin point your location and solve the mystery!

For the full or trial version of our app, please use the download links below. After installation, the trial will automatically begin. For users owning a valid license, unlock the software via the "Unlock Product..." menu item if necessary.

Current Version

Older Versions

These versions are no longer supported and are listed primarily for customers owning older licenses.

Name Version Size Date Platform Minimum OS Download
Mystery Island II 1.9.7 39.32 MB December 22, 2015 PC Windows XP Download
Mystery Island II 1.9.7 31.75 MB December 22, 2015 Mac Mac OS X 10.7 Download
Mystery Island II 1.9.5 29.37 MB March 19, 2013 PC Windows XP Download
Mystery Island II 1.9.5 26.89 MB March 19, 2013 Mac Mac OS X 10.6 (Intel) Download
Mystery Island II 1.9.2 28.41 MB October 23, 2012 PC Windows XP Download
Mystery Island II 1.9.2 30.66 MB October 23, 2012 Mac Mac OS X 10.6 (Universal) Download

Share Your Story...

Simple but complex! Don't judge this game by its cover (or in this case, graphics) because it's actually pretty good. You won't know until you give it a shot, though. It starts out a little slow but gets really good. I recommend that everyone try it at least once.

Lucas Beck

I expected this game to be easy. I was pleasantly surprised when I found that it offered a good, reasonable challenge. The graphics almost add to the creepy feel of it, too. Definitely worth checking out, even if you're not a huge gamer.

Don Graves

The game has an odd feeling of nostalgia to it even if you've never played it before. A real mind-boggler. It gets your creative juices flowing just trying to figure out how to advance to the next area. I really enjoy the challenge and recommend it to anyone else looking for a simple adventure game with some really good content.

Christopher Bates

I love this game so much! I've played it for so many years, dating back to 2009, and enjoy every play through. Koingo has managed to capture a beautifully unique atmosphere in this game. The combination of the retro graphics of the brilliant alien environments and the outstanding classic synth soundtrack by Mark Sumner is a harmony so rarely achieved in games. I also cannot express how much I appreciate the fact that Koingo consistently updates this game to work on modern software as so few games do these days. 5 stars, cannot recommend enough if you love fantastic old sci-fi retro puzzle classics!

Augustus Hatt

Graphically simplistic but absolutely wonderful in terms of gameplay. I used to play these types of games a lot back in the day. Challenging and engaging. I completely recommend this to anyone that enjoys playing these types of adventure games.

Noah Richards

I love alien games! This one is pretty neat. Challenging and unique, it really gets you thinking and observing. Recommended to anyone that likes puzzles and is up for a good challenge.

Pete Walters

I love the genuine old-school foreboding feel that this game gives off. It almost creeps me out. They've got the post-apocalyptic feel going on and they convey it well. I recommend giving this game a go at least once, whether you're generally into these types of games or not. You might just be surprised.

Marion Hayes

The interface is really easy to use. Simple but effective. Just like the good ol' days of point-and-click adventures. Brings back memories, that's for sure.

Tony Miles

Great game. The graphics are old-school in the best way possible. They just take me right back to the old generation of Macintosh computers and how magical it was to play games on them back in the day. Brilliant.

Juanita Clarke

Good game. Don't let the simplistic graphics fool you, the gameplay itself is really complex and in-depth. Keeps you interested, that's for sure.

Meghan Santiago

All of our products come with a full set of licensing options: from single users and households to small businesses and larger corporations.

Personal Licenses


  • 1 computer
    2 unique activations per year


  • 1 household
    10 unique activations per year

Business Licenses


  • 1 school
    300 unique activations per year


  • Unlimited
    10000 unique activations per year

Our manual is always expanding! While we strongly believe our products as so intuitive you shouldn't need a manual, there are exceptions now and then. If you feel there is something missing from the documentation, please contact us.

For a single-page listing of all help entries, click here.

Concept: Josh Hill, Shane Des Rochers, Al Ross

Character Scripting: Josh Hill, Darryl Seres, Bryce Yemen

Programming: Josh Hill, Mike Welsman, Matt Hunter

Graphics: Josh Hill, Al Ross, Tyson Kallberg, Abraham Benrubi

Music: Mark Sumner

Special Thanks to: Ross Montgomery, Matt Beltrame, Kyle McDonald, Matt Hunter, Gary Schroeder, Matthew Avery, Rosemary Hague, Bryce Yemen, Mike Welsman, Shane Des Rochers, Tyson Kallberg, Emile Edwards

Version 2.0.2 – December 15, 2020
Requirements: This version requires at least Mac OS X 10.14 or Windows 7 SP1.
Enhancement: Fixed crash on launch on older macOS.