제4구역: MMORPG is a free-to-play game developed by Infovine for Android devices. It is based on the popular 제4구역 series and is a true original IP game. The game is set in an apocalyptic world that spans from the 20th to the 21st century, where the earth is on the brink of destruction due to the sudden death of Austin, the CEO of a global company, and the uprising of AI and robots. The game offers a completely new design for classic gameplay, from a quarter-view perspective to PK siege battles with over 1,000 players. 제4구역: MMORPG also features a world where players can connect and interact with each other without any division based on affiliation or region.

The game's season-based character system is another exciting feature of the game, where new season-based characters are added regularly, along with additional scenarios and content. The game also supports real-time communication between players of various languages, thanks to its AI-based communication system. Overall, 제4구역: MMORPG is an excellent game that offers a unique twist to classic gameplay.