I took the plunge and entered the 2017 200 Word RPG Challenge.
You can also follow along with the 200 Word RPG Challenge G+ Community.
There is a formal submission process with judges and prizes.
My entry is Cat Wrangling.
Cat Wranglers earn experience gathering cats into their herd. Start with 2d6 cats and one method. Each turn there will be 1d6 new cats in your neighborhood, and 2d6 cats attempting to escape. Both ancient methods and new methods are used. Ancient methods include fresh fish, canned fish, caged canaries, and catnip. Cats may be strays, or those stuck in trees. Each method attracts 1d6 cats. New methods must be researched to maximize one's herd. Possible new methods are: cat yodeling, cat calling, breeding Andalusian catherd dogs, etc. Developing new methods are adjudicated by the judge with a difficulty level. Any creative and entertaining method is permitted. Enticements for cats to leave the herd must be negated. Threats include: big mama cat or old Tom on the prowl and frisky, mice on the periphery of the herd, song birds in the forest too near the ground, children with a laser pointer, stray dogs running wild, etc. The health of your heard must be maintained by cleaning the litter boxes and feeding the herd. Tick marks keep track of cats, food, and litter. Starting methods on index cards are assigned randomly. Each dozen cats attracts a helper and gains a level.