CCG writes – “In 2015, RPG Maker MV was released. It dared to be different and innovative with a multi-platform engine, Javascript as a scripting extension base and tried to shake-up the RPG Maker brand with several new features. It had some performance issues and undershot some expectations, so the creators took the lessons learned and made RPG Maker MZ.”
Source: N4G PC RPG Maker MZ review – ChristCenteredGamer