Acep the Explorer is a game about animal ecosystem, this lesson is a must-know lesson for elementary school children who aim to introduce to children who are just beginning to know animals that are foreign to them, so that children can recognize the animals and place them according to their own ecology. Educational games are games designed or created to stimulate thought including increasing concentration and problem solving. This game developed by multimedia development system, start form concept, design, until testing. AI development is also carried out in this game, we use a finite state automata to create enemies that annoy players The result of this research, an educational game about animal ecosystem and the children's response to the use of educational games know animals according to ecosystem is good, children can get to know animals according to their ecosystem. And the AI, the Finite state automata in this game makes the game more challenging, interesting and fun. Because in this game they can learn while playing games and face some obstacles and destroy the enemy hunting device and complete the game. This research contributes to combining AI technology with educational games to make students learning about animal ecosystems more interesting and challenging