Tutorial - Beginner github.com
This is a game designed to teach the Ruby language and artificial intelligence in a fun, interactive way.
You play as a warrior climbing a tall tower to reach the precious Ruby at the top level. On each floor you need to write a Ruby script to instruct the warrior to battle enemies, rescue captives, and reach the stairs. You have some idea of what each floor contains, but you never know for certain what will happen. You must give the Warrior enough artificial intelligence up-front to find his own way.a
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Video Tutorial - Intermediate youtube.com