A casino operator runs the site and manages player accounts. A slot provider...

https://wiki-planet.win/index.php/Does_MrQ_Have_Its_Own_In-House_Slot_Studio%3F

A casino operator runs the site and manages player accounts. A slot provider creates the game. Provider names help you see who made a slot and find their other titles. Visuals and sound may differ, but they do not change the game rules.