Yooka-Laylee
35 Achievements
1,000
20-25h
Xbox One
Xbox Series
Thinking Big
Expand three Grand Tome worlds
20
5.69%
How to unlock the Thinking Big achievement in Yooka-Laylee - Definitive Guide
The easiest are the first 3, requiring a total of 16 pagies. Just press A on the pedestal to expand each world.