Doodle Kingdom

Doodle Kingdom is a game similar to previous Doodle games such as Doodle God and Doodle Devil, and with a puzzle concept first introduced in the DOS title Alchemy. It is a puzzle game where the player has to combine elements to create new ones. For instance, combining 'humans' with 'beast' creates 'domestic animal'. That item can then be used again with different items. A stage is completed when all required objects have been created.

The theme of this Doodle game is medieval fantasy, with dragons, mages and knights. Next to the main Genesis mode there are different types of quests. There is also a My Hero game mode with gameplay somewhat similar to a side-scrolling endless runner with 'idle game' mechanics. The hero uses potions to fight enemies and collects gold while different types of missions can be started. Potions are needed to survive. The hero can also level up several times, spending skill points to upgrade the main statistics and it is possible to buy different types of equipment using gold.

There are both commercial and free-to-play versions of the game, and most of them also use crystals as a premium currency that can be bought through in-app purchases. Gold is also used as a currency.