V4 is a free online role-playing game for iPhone developed by NEXON Korea Corporation. Players can engage in various activities such as completing missions, defeating monsters, collecting and crafting items, and recruiting allies to strengthen their characters. The game also features an auto-leveling function for smooth character development.

V4 offers a free character-making system, allowing players to create their own characters from scratch or using a preset character. The game also includes a costume and dyeing system that enhances the character's appearance. Players can enjoy large-scale field battles with up to 600 players and experience a massive inter-server cooperation and conflict. The game also allows players to acquire main equipment through field play, and they can easily move around the vast field using various vehicles like penguins and dragons. The game also features a trading system where players can buy and sell equipment and items using Red Gems, the primary currency in the game.

Overall, V4 is an exciting online RPG with an extensive character development system, massive field battles, and a free-market economy trading system. Download it now for free from the App Store.