Openworld Buzzkiller

A person in an openworld game who only cares about the final boss and not about other aspects of the game and quits when the boss is killed

"Wow the whole server is dead because the boss is dead now? The fuck am I supposed to do now I spent like 3 IRL days working on this shit for players to use and they quit just because an enemy that barely affects the game is dead?"

"Fuckin openworld buzzkillers"