Home News Penny Arcade game to cost $20 News by Patrick Garratt Founder & Publisher (Former) Published on March 28, 2008 Penny Arcade Adventures: On the Rain-Slick Precipice of Darkness will cost $20 and hit this spring, Penny Arcade's announced. The game will release for PC, Mac, Linux and 360 via XBLA. The game's going to be about 10 hours long, apparently.