Tried playing on Steam.

Yes. I enjoyed it. If you've played the Flash app game 'Digging Boy Kung!' on Hangame in the past, it's an impressive game, but... You have to collect relics and resources buried under the dome, defend the dome, and fight monsters. If you can't protect the dome, it will be destroyed and the game ends! Given the impatient nature of Koreans, it will be a game that polarizes opinions.