Europa Explorer is a project I have been working on to create a game inspired by real world science. You drive a robotic probe exploring the ocean on the moon Europa. You can download the alpha build from www.EuropaExplorerGame.com or Itch. This is a solo dev project by myself, so it is self promotion, but not for profit, so hopefully this post is within the forum rules.
I have been doing bi-weekly video updates on my progress. If you want more info.
Alpha 1 Update - Tools
Alpha 2 Update - Systems
Alpha 3 Update - World