Stealthy: Secret Messenger - Chat anonymously with friends & strangers
TIC-80 - TIC-80 is a fantasy computer where you can make, play and share tiny games.
Vuash - Send secret messages safely.
PICO-8 - Lua-based fantasy console for making and playing tiny, computer games and programs.
Phonebot - Make phone calls from within a Slack channel
WASM-4 - Build retro games using WebAssembly for a fantasy console