Thank you for coming

• Please contact us through Facebook/ Discord/ Reddit/ QQ group

• Facebook/ Reddit: Idle Big Devil

• Discord links on the game login page

このゲームについて

Humans, Demons, Elves and Undead coexist peacefully on the same continent until the balance was broken: A fallen prince of the human kingdom accepted the contract with Undead, and evil spirits arose from the hell to cloud the minds of most creatures.
In such a critical situation, you are appointed by the King as a new lord with the duty to gather new heroes to fight against the darkness.
One of the elders secretly tell you a secret that the energy of heroes can be combined.
And the High Priest creates a device to duplicate heroes. All duplicates have no feelings or minds.
With all these, you are going to prepare yourself for monsters, fallen heroes, and other competitive lords.


The aim of the game is to collect and assemble a group of Heroes and to continuously improve and equip them with new items. Progress in the campaign mode, tower of infinity and many other modes to be rewarded with powerful Artifacts, Equipment or Set Items.

• An IDLE game with 3D graphics.

• Dozens of heroes to collect from 5 different factions, each with unique skills.

• Summon heroes, train them to become more powerful and beat various contents like challenges, explorations or arena.

• You also can join or create a Guild, gather friends and allies to fight mighty bosses to get the best rewards.

• Improve your buildings to get more resources.

• We intend to create an interesting idle RPG game for our players. The design of each hero is unique.

• There are very few PVP gameplays in the game. Some gameplays are designed to let players help each other and get more rewards together.

• We hope you can have fun while playing this game in your leisure time.

• The game is still in the process of continuous improvement, so any comments/suggestions you have is greatly appreciated.