Brew-Off! is a NES game my daughter and I worked on together for her science fair project in 2020. It's a cooperative game where the two players work together to brew potions in a magic shop.
The Brew-Off! source code is largely based off of examples from Devine Lu Linvega's Famicom Cookbook.
This game and the tools used to build it are all open source software. Original work for Brew-Off! is made available under the MIT License.