The challenge: to create a videogame based on the 'Spacewar Starter Kit' before the end of this month.
The prize: "... The contest starts now with our Warm-Up Challenge. We’re awarding $500 (USD) to the top five entries! ..."
You will find more information on the site.
So, c'mon, let's go for it! ... there are 4 remaining places for you ... ;)