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Latest Downloads
Modules Pack (December 29th, 2016)

Git snapshot (December 29th, 2016)

The links open the Github download page.

Project Apollo - NASSP is an ongoing project, many developers are working on lots of new features and enhancements. If you are interested in this development you can now beta test Project Apollo.

Since Project Apollo is an open source project and all developers are working for free in their spare time we don't have project plans, schedules, or things like this. We coordinate the development by using our forums. So if you read the latest news you hopefully get all the necessary information you need to use and test Project Apollo. Of course every developer is happy to get feedback regarding his work to fix bugs and make improvements, so please do not hesitate to post in the forum if you discover something noteworthy in the beta versions.

This section tries to provide step-by-step instructions to set up the "beta testing enviroment" for Project Apollo. You need to do the following steps only once. If you want to update your beta version read the "How do I update?" section below.

Install Orbiter

If you have installed the latest Orbiter version already, you can use this installation for Project Apollo, of course. Otherwise you need to install Orbiter. This includes the following steps at the moment:

Orbiter 2010-P1 Edition (

Optional: High resolution surface tiles for the Kennedy Space Center

Installation Prerequisites

Install the Microsoft Visual C++ 2010 SP1 Redistributable Package (x86) if it's not installed already.

Install the latest Project Apollo Beta

Download the Modules Pack using the link at the top of this page. Unzip the Modules Pack to your Orbiter installation folder. Make sure that the directory structure of the archive is retained, usually there's a "Use Folders" option box or similar, which should be ticked/checked.

Optionally, you can download and unzip the Git snapshot the same way if you wish to have the source code that corresponds to the binary release.

Optional, but recommended: Install the DirectX 9 client

The built-in (aka "inline") Orbiter graphics client is based on DirectX 7. Especially with Windows 7 computers and/or recent graphics adapter this client isn't working very well or in some cases isn't working at all. Fortunately there's an DirectX 9 client by jarmonik meanwhile, which is working great with Project Apollo. So it is strongly suggested to give it a try. You can get it from this thread in the Orbiter main forum or by following these instructions:

  • Download and unzip the file to your Orbiter installation folder the same way as the Project Apollo files above.
  • Start Orbiter_ng.exe (NOT Orbiter.exe) from your Orbiter installation folder.
  • Go to the "Modules" tab and activate the "D3D9Client" module.
  • The "Video" tab appears, configure the video settings as you like, they are quite similar to the usual Orbiter video settings. Do not change any settings you don't know/understand.
  • Launch a build-in scenario in order to check if the client is running fine before you continue with the instructions below.

Configure Project Apollo

  • Start Orbiter (that means Orbiter_ng.exe in case you're using the DirectX 9 client), go to the "Parameters" tab and make sure that at least Complex flight model, Limited fuel and Gravity-gradient torque are enabled. If you're using a Virtual AGC scenario, also enable Nonspherical gravity sources.
  • That's all, now you can try if Project Apollo is working properly. You'll find the proper scenarios in the "Project Apollo - NASSP" scenario folder. Please note that the scenarions in the "Broken Scenarios" subfolder are, well, broken.

How do I update?

To update your Project Apollo installation you can repeat the steps above.

How can I track the development source and/or participate in development?

Please see the development area of the forums, specifically the git instructions thread.

See Also