I taught English in Seoul for a year in '02/'03. bang = room. There was (maybe still is?) a PC bang on every block or two pretty much. I'm sure I went at least 100 times. Great way to kill some time playing counter-strike for me and dabbling in starcraft. It was maybe $1.50/hr at the time. For a much better PC, nice chair, pre-installed games and snacks available.

broadly yeah. the computers have games pre installed and sometimes with subscriptions or free game time included in the price of your time there etc