Complex sentence: Glitch was a browser-based massively multiplayer online game created by Tiny Speck under the leadership of Flickr co-founder Stewart Butterfield (known in-game as "stoot barfield").
Split into simpler sentences: Glitch was a browser-based massively multiplayer online game created by Tiny Speck. The game was developed under the leadership of Flickr co-founder Stewart Butterfield (known in-game as "stoot barfield").