Here is the full list of all 11 Sokobos achievements.
The base game contains 7 achievements, and there is 1 DLC pack containing 4 achievements.
Finish building the garden
Finish building the temple
Finish decorating the temple
Witness the tragedy
Witness the ending
Beat all levels
Play the game for 2 hours
Witness the meeting
Witness the betrayal
Witness the ending (Aphrodite's Trial)
Beat all levels (Aphrodite's Trial)