You began the adventure

Finish Episode 3: Chaos Theory

Take optional photo #8 in Episode 3: Chaos Theory

Take optional photo #7 in Episode 3: Chaos Theory

Take optional photo #3 in Episode 3: Chaos Theory

Complete "The Way of the Voice"

Croft Manor: Collect all of the Documents in Croft Manor

Croft Manor: Open Lord Croft's Safe

Croft Manor: Collect 50% of the Relics in Croft Manor

Absorb a dragon soul

Make a smithed item, an enchanted item, and a potion

Destroy all Mr. Raccoons hidden in The Ghost Survivors mode.

Finish the game on any difficulty