25 Highly Valuable Games You Might Actually Own

2. Air Raid

Platform: Atari 2600 Released: 1982 Potential Sealed Price: $33,400 Potential Used/Worn Price: $4,000

The only game ever made by developers and publishers Men-A-Vision, Air Raid is notable for both its unusual blue cartridge with a handle, and its extreme rarity. In 2011, a copy that was only the cartridge itself managed to sell for $3,575.

Later, in 2012, the first complete Air Raid package was sold, with the cartridge, box and manual. It went for an incredible $33,433.30, the highest amount ever paid for an Atari 2600 game.

1. Nintendo World Championships

Platform: NES Released: 1990 Potential Sealed Price: N/A Potential Used/Worn Price: $99,902

The Nintendo World Championships cartridges are the most expensive video games ever sold. Earlier this year, one was sold on eBay for an astonishing $99,902, made particularly incredible by the fact that it had a torn label with the word "Mario" written on it. The game is so rare because it was only available by competing in the legendary Nintendo World Championship tournaments in 1990.

There are 90 grey cartridges and 26 gold cartridges in existence, with each copy containing a timed version of Tetris, Rad Racer and Super Mario Bros. Some were concerned that the $99,902 auction was artificially bumped up by fake bids, but the transaction was marked as completed. Other auctions for the cartridges can start at around $8,000, while gold cartridges begin at $15,000.