The Investor Challenge sees firms such as Etsy, Pinterest and Foursquare face off in six weekly rounds competing for money from players given $1 million "microbucks" to invest.

The startup that commands the most total investment from players advances to the next round where it faces off against a new opponent until a winner is found. Players can win $250 in cash each week for picking winners with the overall best performer will receive a MacBook Air.

Bill Clark, CEO, MicroVentures, says: "We wanted to turn the current buzz about startups into a fun online investing experience. The passage of the federal JOBS Act means there's a brand new category of early stage investment opportunities coming online and this is an entertaining way to get exposure to the space."