This game was released to Steam probably within the last five years. The premise is that a colony of people left Earth to live on a spaceship for hundreds of years. When it returns, everyone is dead. You play a (programmer? technician? detective?) tasked with speaking to the two AIs in charge of the ship to find out what they know. Since they're programs, they can only see so much. And one of them hates you. It takes some coaxing to get information from her. We find out through investigation that the other AI is a digital copy of the girl who murdered everyone.
This game is heavily text-based with anime visuals. That's a visual novel, right? I don't think you can get a game over, but you're likely to get stuck while deciding what to say to the AIs.