https://pioneerspacesim.net/ Although, after watching a few videos on how to play it, felt an itch to play Elite Dangerous. So haven’t played Pioneer much.

I think it was S3 Virge. Remember playing Tomb Raider with smooth textures.

That is a scientifically correct answer. Not for this question, though.

YAML for human-written files, JSON for back-to-front and protobuf for back-to-back. XML is an abomination.