A simple chip-8 emulator written in Java.
Chip-8 is an interpreted language, i.e. it's running in a so-called virtual machine, as opposed to compiled languages such as C.
Simple games such as Tetris and Pong have been implemented, and actually are available in public domain!
A kind man has gone ahead and compiled all of these (Thanks!!) : https://johnearnest.github.io/chip8Archive/
For more technical information on what exactly Chip-8 is: http://devernay.free.fr/hacks/chip8/C8TECH10.HTM#2.5