Here is the full list of all 10 Space Pilgrim Episode IV: Sol achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Complete the Space Pilgrim saga.
Complete act three of Episode Four.
Make an unnerving discovery.
Bring two people together.
Share a special moment with Jojo.
Share a special moment with Sabina.
Complete act two of Episode Four.
Complete act one of Episode Four.
Hit a man when he's down.
Complete the prologue.