You are a young wizard seeking treasure and glory. As you walk through goblin territory and into an abandoned old castle filled with gods-know-what, each step you take gives you magical energy and opens up possibilities to cast spells to keep yourself alive.

This game, created in partnership with Delight Games, gives you options to make your own decisions in this magical world, but unlike any other choose-your-own-adventure story, it’s meant to be played while walking. Put on your headset and either speak or tap your choices as you go.

Update: In the end, this game was published on the Google Play Store, but without the exercise piece. It’s called Audio Game: Wizard’s Choice, and is completely free.