In 2010-2011, Emily Care Boss organized a challenge to design and publish a solitaire roleplaying game. In keeping with the solitaire theme of the challenge, games were due on 1/11/11 at 11 PM. The games were required to be posted in text but could also be published in "beautiful" versions (but only the text version was used for judging).
There were about 40 completed entries; many were significantly reworked or revised based on challenge feedback. Most of the games remain available today for free download (at least the text versions). Several of the games previously/subsequently were entered in various other challenges (allowed by the rules of this challenge).