Here is the full list of all 11 Soulless: Ray Of Hope achievements.
See the world crumble before you.
Acquire a flashy set of wings.
???
Collect all of the notes.
Jump into the flames, and end your journey.
Stay pure, and reach your friend.
Free all of the hope pieces in one session.
Find all secret rooms.
Witness all of the endings.
Complete the game without dying.
Complete the game in one sitting.