Now the game will close down completely next month, while a large part of the Tiny Speck team -- originally made up of the people behind image hosting service Flickr -- has been laid off. In a statement on the official website, company management explained that the industry's move towards mobile platforms, plus the decline of the Flash platform, played a key role in the closure.
"Unfortunately, Glitch has not attracted an audience large enough to sustain itself and based on a long period of experimentation and our best estimates, it seems unlikely that it ever would," it reads.
"Glitch was very ambitious and pushed the limits of what could be done in a browser-based game... and then those limits pushed back."
The studio is offering refunds on all Glitch purchases made within the last year. Meanwhile, Tiny Speck will continue as a smaller core team, working on applications outside of the games industry.
"We are really sorry. We failed you," the statement notes. "And it is very, very painful: no-one wanted Glitch to succeed more than us."