Staying true to their wonderful sense of humor, Stephen Nichols, DR's Producer and Lead Programmer, released a statement yesterday detailing the closure. He certainly doesn't butter it up at all as he explains that the game just isn't turning a profit, regardless of their efforts over the last year. They're now down to a 3-man team, which is near impossible for any studio to use in maintaining a game.
Luckily, for those currently subscribed to the game, some treats are coming your way, including free City of Heroes Architect Edition and Guild Wars Chapter 1: Prophecies. So if you've never played Dungeon Runners before, you have a little over three months to jump in for free and check it out before the game shuts down for good.