React Native Desktop - Build OS X desktop apps using React Native
Blockinger - An open source Tetris clone for Android.
Arbiter IDE - The offline-friendly, in-browser IDE for pure JS prototypes
Tetris Blitz - Race against the clock in a two-minute blitz to clear lines and rack up points before time runs out.
CodeOnline - A remote and secure workspace powered by VSCode
NullpoMino - NullpoMino is an open-source action puzzle game that works on the Java platform.