Escape is a 2D game developed following the book Mission Python by Sean McManus (www.sean.co.uk).
The game uses the Pygame Zero librairy (https://pygame-zero.readthedocs.io/en/latest/installation.html).
To run it, you should install Pygame Zero, then simply enter the game directory and run pgzrun escape.py.
Depending on your OS, pgzrun may not work. This is the reason an additional import is made (import pgzrun), with an extra pgzrun.go() command at the very end of the game file. Hence you would like to run the game by using python3 escape.py instead of pgzrun escape.py.
For more information, please visit https://pygame-zero.readthedocs.io/en/latest/ide-mode.html