This is a traditional Korean Card Game called Go Stop / 고스톱 or 맞고 (Matgo). This game is very popular in South Korea with many adults and normally is played for fun, however some people do illegally play for money. The packs go be bought from basically every local mart, supermarket and even 7Eleven, prices range from ₩2,000 to ₩5,000 on average.
The super basic aim is to get points by collecting sets of matching cards. Different cards are special and are more valuable then normal cards. The full rules can be found below or in the videos.
Pictures of Go Stop (Box & Cards)
Here is an example pack which we bought from Daiso for just ₩2,000.
Here are the different cards.
Modern Style Cards
How to Play Videos and Links
This video by the guys at Eat Your Kimchi gives you a good idea of how to play and the fun that can be had.
This video explains simply about Go Stop and is presented by Steve Miller (Qiranger) & BusanKevin.
Links
How to Play – pagat.com/fishing/gostop.html
Blog post by Steve Miller (Qiranger) about Go Stop – blog.korea.net/?p=1011
In Conclusion
If you have any questions or comments about Go Stop please let us know either by commenting below, on Facebook, Twitter or via email.
Thank you for your time.
Modern Seoul
tim@modernseoul.org
Modern Seoul 
Those look a lot like the traditional hanafuda cards made by Nintendo…
This game gives me a headache every time I try to play it. ^^
From this website you can to practice.
http://www.mochigames.com/games/gostop/