505 doesn't work on the PC updates.
Subnautica is programmed in Unity. Terraria PC is XNA. Even my tech noob knowledge knows that makes a BIG difference in porting ease and speed. It also is not trying to port to old gen and current gen all at once - which is a big deal (old gen is over a decade old now - a massive tech gap). Again,
not excusing the delays - and pushing to close the gap - but most analogies people make here wind up being flawed in one way or the other.
Admittedly, I have no idea what the hold up is at MS either - though I keep asking every day.
Anyway - eager to get this out so you guys have it and then hopefully we can get a glimpse of what comes after that. Hang in there.