A simple game creation system (GCS)
MegaZeux is a Game Creation System (GCS) inspired by Epic MegaGames' ZZT, first released by Alexis Janson in 1994. Originally written for DOS, MegaZeux is now available on a wide variety of platforms. Many features have been added since the original DOS version, and with the help of an intuitive editor and a simple but powerful scripting language, MegaZeux allows you to create your own ANSI-esque games. It is actively maintained by a thriving community. See https://www.digitalmzx.com/ for more information.