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A-OK! The Wings of Mercury

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Year released:
[www].se [ftp].se [mirror].us [mirror].de (43.86 MB)
MD5: bebd2697d666804cb6aa6af8a4d9b188
For Mac OS X
[www].se [ftp].se [mirror].us [mirror].de (66.82 MB)
MD5: 52c9cb9eb28de44188a3e9dc9b5a7d3b
For Mac OS X
[www].se [ftp].se [mirror].us [mirror].de (85.49 MB)
MD5: a2285e497c5f0595b6e1bafc6ba24350
For Mac OS X
Guides on emulating older games

A-OK! The Wings of Mercury simulates America's first spacecraft, Project Mercury, and opens a new frontier in computer simulations. The operation of every gauge, light and switch in the spacecraft is simulated to a high degree of fidelity. So accurate are the spacecraft systems that users consult reproductions of the actual flight documentation used by the Mercury astronauts. Orbital and Sub-Orbital missions can be simulated. The simulator can generate hundreds of failure scenarios that require split-second decisions to survive. It is not a game (but I have listed it as a game to categorise it as a simulation). A-OK! The Wings of Mercury ships with A-OK! Mission Control Center, an application that simulates the consoles at Mercury mission control. A suite of tools that allows users to edit the launch and landing areas, calculate retrofire and ground station contact times and other mission-critical tasks are available to registered users. (Blended from assorted descriptions on the web)

The publishers’ websites no longer exist and the software is no longer for sale. Using the Wayback Machine, I was only able to find the versions available on this page. They are demos only and are restricted to sub-orbital, non-networked simulations, and do not allow the use of the A-OK! Tool Kit. Version 3.9.2 requires a registration code. The earlier versions require the CD-ROM that was once available for purchase. I have neither of these.


If anyone has either a registration code or a copy of the CD-ROM, please upload it here.


Download #1: Version 3.5.1b2 (Released 2005) - Requires a PPC G3 600 MHz, Mac OS X 10.1.5, 800 x 600 display and thousands of colours.

Download #2: Version 3.7.0b1 (Released 2006) - Requires PPC, Mac OS X

Download #3: Version 3.9.2 (Released 2012) - Requires an Intel processor, Mac OS X 10.4

Version 3.0.2 was released separately for Mac OS 9 and Mac OS 9/Mac OS X in 2002 but I do not have a copy and the download links via the Wayback Machine are unusable.


Please upload version 3.0.2 if you have a copy.


Version 3.9.2 was published by Apogee Development. The other versions were published by Pyramid Design.

I have listed the publication date as 2002 because that was the year in which a Mac OS X version was first released, and also because I am hoping someone will upload version 3.0.2.

Architecture: PPC x86 (Intel:Mac)

Versions 3.5.1 and 3.7 also appear as applications in Mac OS 9 but crash for me after loading data. These versions are described as being for Mac OS X only, so the crash in Mac OS 9 is unsurprising.


mrdav's picture
by mrdav - 2020, December 1 - 11:17am

Alas, it is probably now missing the resource fork entirely which cannot then be recovered with ResEdit or anything else.

MetalMilitia's picture
by MetalMilitia - 2020, December 1 - 8:24am

I have the OS 9 installer but its been hit by windows can you resedit it back to normalcy?