Many modern games, from FIFA to Doom, have been around long enough to have actual retro versions lurking in the archives.

But others, including current chart-toppers Call of Duty: Black Ops II and Halo 4, haven't quite got the heritage to have been based on 8-bit classics.

Luckily those games do have a lot of fans, many of whom are apparently very skilled with game design and 8 bit graphics, and have a lot of time on their hands.

As a result,old-fashioned versions of modern video games are everywhere online - and we love seeing how our modern favourites are re-imagined for low-res monitors, tiny processors and 2D platform mechanics.

Check out Call of Duty Retro and our other favourite 8-bit games in the slideshow below.

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  • Retro Black Ops 2

  • Retro Borderlands

  • 16 Bit Assassin's Creed

  • Retro Halo

  • 8BIt Resident Evil