Fallenor

noun.
A person who has "fallen" from the real world, spending a long time on things that are not good and/or useful for their life. Same for "no-lifer".

"Bro, I got all this stuff!"
"It's a video game! How long did you spend on this game?"
"I spend about 500 hours."
"You are just as same as a Fallenor"