In order for you to play Towns on macOS with minimal graphics settings, your computer must meet the following requirements
Memory (RAM):
1 GB RAM
Graphics Card:
OpenGL 1.3
Hard Drive:
20 MB HD space
Additional:
The game needs Java 1.6 or higher
In order to play Towns on macOS with maximum graphics settings, you need a computer with a configuration no worse than the following
Memory (RAM):
2 GB RAM
Additional:
The game needs Java 1.6 or higher