If the idea of managing a space mission from the ground up sounds familiar, then this might be because it has been done quite a few times, as in Buzz Aldrin’s Space Program Manager (see this GOG release news) or Kerbal Space Program. The newest entry in the genre, Mars Horizon, follows in these games’ footsteps by being faithful to the science behind space exploration, as can be seen with the involvement of the European Space Agency and the UK Space Agency.
Being in competition with other space agencies, one tries to be the first one that manages the landing on the moon, but also the journey to the red planet Mars. This obviously entails building spacecrafts, training crews, and investing in new technology, although time is also of the essence. So one has to decide if one wants to be on the safe side with more thorough planning or be as fast as possible, which might result in mission failure.
Mars Horizon was originally released in November 2020 and is now available DRM-free on GOG with a 10% launch discount that lasts until February 19, 2021, at 2 PM UTC.