In order for you to play The Book of Unwritten Tales on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
Mac OS X 10.6/Mac OS X 10.7
Processor (CPU):
1.4GHz Intel Mac Core Duo
Memory (RAM):
1500 MB RAM
Graphics Card:
Intel GMA-950-Grafikkarte with 64MB VRAM or better
Hard Drive:
6 GB HD space