"Gacha Adventure" is a cute idle game in which the art style is mainly cute, with a Western mythology as the background. It's a standard 9th palace round combat strategy game, in which the player can choose the hero group and arrange them to form a combat lineup. Each hero has a unique skill that can be used to attack enemies.

There is a pet system in which the player can choose to adopt a pet and raise it to level up. Each time the player attacks an enemy, the pet can use its special attack to attack the enemy. There is also a system in which the player can find a treasure chest and get rewards.