Here is the full list of all 22 Lust form Beyond Demo achievements.
Complete the game in censored mode.
Finish the game.
Walk through Lusst'ghaa without receiving damage.
Pick up all the touchable items in the game.
Find and use all the first aid kits.
Look at unconscious Mabel for 3 minutes.
Read all the notes.
Find and use all the sedatives.
Look at the cultist orgy for 5 minutes.
Pick up the devil mask, when the light is out in the mansion.
Pick up all the masks.
Talk to the prisoner under the stairs.
Collect all the lauv'abrarc figures.
Open the secret locker in Theodore's bedroom.
Collect all the ritual items.
Open the tabernacle with as few moves as possible.
Read all the letters concerning Mabel and complete all the conversations with her.
Pick up all the items in Theodore's room.
Don't show any doubts speaking to the Cult members.
Spend a minute reading prayers from Iauv'abrarc's altar.
Finish the dream about the land of Lusst'ghaa.
Turn off censorship during gameplay.