Monster Merge King is an exciting dungeon adventure game available for iPhone users. In this game, you have the opportunity to grow your monsters by going on thrilling adventures in diverse dungeons. The main objective is to merge your monsters and create more powerful ones to defeat your enemies.

One of the key features of Monster Merge King is the ability to strategically use the diverse skills of Rare, Epic, and Legend monsters. By leveling up, upgrading, evolving, and transcending your monsters, you can make them even more powerful. Additionally, when you create a team with certain monsters, you can unlock powerful buff effects.

To aid in the growth of your monsters, the game provides various materials that can be obtained from the Boss Dungeon and the Element Dungeon. You can also participate in global battles, where you can challenge monster teams from all over the world.

Monster Merge King offers an Idle Mode and offline play, allowing you to enjoy the benefits of an idle game even when you're not actively playing. The game also supports ranking, achievements, and leaderboards, adding a competitive element to the gameplay.

It's important to note that Monster Merge King is a free game, but it does offer a subscription option. Payment for the subscription will be billed to your iTunes account, and you can manage the auto-renewal settings in your Account Settings menu.

Overall, Monster Merge King is an engaging dungeon adventure game that offers a unique monster merging mechanic. With its diverse skills, buff effects, and global battles, the game provides an immersive experience for players looking for a strategic and exciting gameplay.