The game in question: https://store.steampowered.com/app/2565520/Year_Unknown/

Year Unknown is a story-based exploration game about the very far future. With the help of two Artificial Intelligences, explore a universe conquered by humanity, uncover your purpose in it, and try to stop it from falling apart.

It's been over three* years since I started development on Year Unknown... and it's finally out.

• Definitely more than three years