Collect 50 Fireflies.
Solve the Runic Puzzle on your first try.
Collect 100 Fireflies.
Complete the game without dying.
Die and return to the start location 5 times.
Find all of the memories.
Reach 0 fireflies.
Enter the Deep Below.
Enter the Ancient Hall.
Enter the Skyward Pillars.
Enter the Luminous Caverns.
Enter the Stygian Maze.
Explore every room of the caves.
Find a secret room.