I've been playing this little game a couple of times now and overall, it's quite fun. My main grief with the game is that in many cases, I have some trouble grasping what it actually was that killed me. I'll just list some questions now:
1. Space travel - it often gives you...red events (like explosion in cargobay, direct hit on the bridge, minor malfunction etc etc) without saying what caused it. I have trouble grasping how to avoid them because of this. Another annoying thing is that those events often damage equipment like sensors, engine and shields in a way that seems to permanently downgrade them, meaning the damage can't be repaired at a space station, they just go back down to lv 1.
[Edit: Deleted 2. because I noticed I just overlooked a list of XP-granting actions in the manual. It's not complete, but it's pretty much what I was asking for.]