Adventure Capitalist

For those who want to avoid any risk from investing in the real world, AdVenture Capitalist might be the answer.

An online game, players pretend to be major investors in various products to generate large amounts of cash. Starting out with just a single lemonade stand, there are three areas where you can invest: the Earth, Moon, and Mars. Once you increase your revenue at the lemonade stand, you can buy more stands, and gradually work your way up to $1 trillion on Earth. From there, you can invest on the Moon or Mars. A player can speed things up using advertisements, angel investors, or buying gold or megabucks with real money.

The game did not get great reviews, but still maintains a loyal following.