Here is the full list of all 30 Last Hope achievements.
Make love for the first time
Reach maximum relationship with Adrianna
Reach maximum relationship with Katherine
Reach maximum relationship with Natasha
Purchase every item in the galactic store
Find the secret in the galactic store
Unlock all scenes in the checklist
Make a special connection with an alien girl
Unlock the first dream
Unlock the second dream
Unlock the third dream
Unlock the Final Dream
Collect Every Photo
Have Everybody on the ship walk around completely nude
Have all your secrets revealed
Kiss someone for the first time
Get help filling up the G.A.I.A for the first time
Set up all hidden cameras around the ship
Find some wine hidden around the flight deck
Reach the first mark on the G.A.I.A
Reach the second mark on the G.A.I.A
Reach the third mark on the G.A.I.A
Reach the fourth mark on the G.A.I.A
Reach the fifth mark on the G.A.I.A
Reach the sixth mark on the G.A.I.A
Reach the seventh mark on the G.A.I.A
Reach the eighth mark on the G.A.I.A
Reach the ninth mark on the G.A.I.A
Reach the final mark on the G.A.I.A
Return To Earth