Overview
Late-game system added in 1.6 for mastery rewards after maxing the five core skills.
How it works
Late-game system added in 1.6 for mastery rewards after maxing the five core skills. Practice raises a skill and unlocks levels, recipes and choices.
Practical advice
Treat the cave as a long-term target and select mastery rewards that benefit your preferred systems.
Mistakes to avoid
Do not expect to access mastery rewards before developing the basic skills.