I like the music and the design, but I wasn't really sure what I was doing XD I mean I couldn't tell what the upgrades were actually doing so it felt like nothing much was happening. On the bright side, I did make up a story for this game while I was waiting for money!
Story: A technologically advanced kingdom created an advanced money-making machine called the CoinGen, but one of the members of the royal court betrayed the secret of its location to the neighboring kingdom. Worried about the loss of the source of their wealth, the monarchs of the advanced kingdom sent out their bravest knight (the main character) to defend it against their rival's army.
Anyway, I guess that helps if you ever wanted to develop this further after the jam is over?