Number One, Then Gone: The Short Life of Korea's First Play-to-Earn Hit

In late 2021, Korean mobile players found a game that seemed impossible. It was a Three Kingdoms RPG, the kind Korea has produced by the dozen, but this one paid. Finish quests and you earned a token. Swap the token for a listed coin, and it became money. Reports said an hour of play could bring in around 10,000 won.

The game was Muhandolpa Samgukji Reverse (무한돌파삼국지 리버스) from developer Natris, widely described in the Korean press as the country's first P2E game. It briefly hit number one in the popularity chart. Within weeks, it was gone from the app stores. Its story is the clearest example of what happens when play-to-earn meets Korean law.

How it worked

The design was simple. Players earned the Mudol token (무돌토큰, often called Mudol coin) through in-game quests. The token, built on the Klaytn blockchain, could be exchanged for Klaytn's coin, which traded on crypto exchanges. In other words, there was a direct path from playing to cash.

That path is exactly what Korea's game law forbids. The Game Industry Promotion Act bans prizes that encourage gambling and bans the business of cashing out game results (how the ban works).

The fall

Korea's Game Rating and Administration Committee (GRAC) spotted the game in post-launch monitoring and, on 24 December 2021, cancelled its rating. Natris sued two days later.

What followed was a legal yo-yo. A provisional order let the game come back on Google Play for a while. Then, on 14 January 2022, Natris announced that the court had rejected its request to suspend GRAC's decision, and the game was removed from Google Play and the Apple App Store. The Seoul High Court later turned down Natris's appeal on the injunction too. The removal of a P2E game also hit Korean game stocks that had been riding the blockchain theme, according to market reports at the time.

The token-free twin

Natris did not give up on the game. It relaunched it as Muhandolpa Samgukji Reverse L, the same Three Kingdoms RPG with the token removed, and kept it running while the lawsuit went on.

That decision came back to haunt the company. When the Seoul Administrative Court dismissed Natris's main lawsuit on 31 January 2023, it noted that the token was built for market trading and was not essential to the game, as the token-free version showed. It treated the token as a gambling-style prize and found that a game handing out crypto to attract players could be a "new form" of gambling game (the full ruling).

What it left behind

Muhandolpa Samgukji Reverse did not change Korean law, but it tested it. It showed that a P2E game could reach Korean players through self-rating, that GRAC would act quickly once it noticed, and that the courts would back GRAC. Every Korean studio that has since launched a blockchain game abroad but not at home has been working in the shadow of this case.

WGC's take: For a few weeks, Korean players got a glimpse of what P2E at home would look like: a rush of players, a hot token and then a crash. The game's real legacy is legal. It turned a theoretical ban into a tested one (why the debate is back in 2026).