- Fireflies. Six LEDs, connected to a PICAXE with Charlieplexing. Article Glühwürmchen im Marmeladenglas
- Tamagotchi. A simplified variant of the late 1990s classic for one button and two LEDs
- Simon-1bit. A variant of the game Simon Says, but with one button and one LED. Similar to a Morse trainer. Article Löten bei der Geburtstagsfeier & zwei PICAXE-Spiele
The MIT License.