First announced back in at G-Star 2012, Red Stone 2 was set to be the official sequel for Red Stone Online, a classic 2D online game which launched in South Korea in 2004, with a couple of re-launches in North America. Developer L&K Logic Korea confirmed recently that development has stopped since last year, with resources moved to the upcoming mobile version, Red Stone 2 Mobile.
It seems like many years were lost on Red Stone 2, since the project started back in 2007. L&K Logic Korea cited the industry move to mobile devices left them with no choice. From the gameplay video above, Red Stone 2 Mobile maintains the graphics of the PC version (cel-shaded?), and looks pretty good. The game is scheduled to launch in South Korea this winter on iOS and Android devices.