In the game, players take on a series of increasingly tough enemies in an arena drawn using only the basic characters and punctuation marks available in Excel.

BBC: Excel spreadsheets turned into video game

Before the game is played, the basic interactions of objects and characters in the world are worked out and some possible ways of working through the story are prepared.

BBC: Video games without frontiers

He and his team were plowing through Pinocchio and found themselves in a creative bind as they wrestled with some basic questions of animation, like how to draw the main characters.

FORBES: Let the Learning Begin