Mad Games

2013-2014
Still used on one of the badges

2014-2015, 2016-present
Used from 2014-2015, this logo was revived in 2016 (however a creepy memey Loleris appears instead of his Roblox counterpart)

2015-2016
Temporary logo, discontinued due to Roblox's terms of service rules to make it a kid's game, the old one was retained but with a more scary Loleris.