Mr. Driller Online

Mr. Driller Online (ミスタードリラーオンライン) is a free-to-play sandbox MMORPG game developed by Drillimation Studios and published by Namco. Since July 2015, the game has more than 17.3 million registered players.

Gameplay
When the player creates their account, the player must create a character for use in-game using a built-in Kisekae editor. The game is set in the fantasy-modern-based world called Minecraftia, and consists of anime-based characters created by other players. The player can freely roam around the overworld and choose how to play the game without any specific goals set. Players interact with one another by chatting, trading items, or by participating in multiplayer games, adventures, and parties.