Long before the video game industry was interested in making tools accessible for the average person, software like RPG Toolkit was absolutely essential. He was 10 years old at the time, and it would be several years before Johansson started on Key to Heaven. Johansson started making single-player adventures in RPG Toolkit, before feeling his ambition grow. Key to Heaven was an MMO, and an MMO needs players for it to function. \"I ended up searching online using Google and 'top 100' lists to find '2D open world online RPG games,'\" said Fisher.