(From Kotaku) South Korea’s mandatory military service is a tough one. The length of service is around 21 months, applies to males between 18 and 35, and it’s not a place where games like Hearthstone are allowed.
Except if you’re a dedicated fan like these soldiers who, unable to play the real game, made their own version.
By rolling dice they can deal with the RNG and that’s it. Everything’s set.