The serious game '1378(km)' has reached over 750,000 downloads. Due to the intense media storm and sensationalist reporting, the release was pushed from October 3, 2010, to December 10, 2010. The game no longer requires the paid Half-Life 2: Deathmatch base game, but only the free 'Source SDK Base 2006' tool on Steam. Simply download and install the game files to play.