This is a collection of (potentially) useful links.
Here are some projects doing digital design on top of technology not primarily designed for digital design:
- What Makes Mario NP-Hard? -- circuit-like constructs on top of Mario. Video based on Classic Nintendo games are (computationally) hard.
- Can we compile C code into PowerPoint? -- the title explains it all
- Of course, sandbox games like Minecraft allow you to implement circuits as well
- (Less relevant: One can implement the Rule 110 cellular automaton on top of CSS to show that CSS is Turing complete.)