News: 18.11.2018: The third episode Storm Crag of the Clíodhna series is released! 18.9.2018: Updates for the Space Shuttle Flight Manual (standard and deluxe edition) are out - see the bookstore for the download! 26.8.2018: The second episode Truth from Beyond of the Clíodhna series is released! 26.6.2018: The teaser for Clíodhna Episode III 'Storm Crag' is out! 12.5.2018: The first 30 minute long episode 'Blood in the Snow' of our Fantasy movie project is released - check out the YouTube version or get it on DVD! 12.4.2018: Version 0.3 of Low Earth Orbit Targeting is released, allowing to simulate 3rd body perturbations - also see the tutorial series on its usage. 4.4.2018: Our second movie teaser is out - see it on the movie page! For regular updates on the movie project, we also now have a newsletter you can subscribe to.