Spirit Summoner is 3D Real-time strategy attack enemy defense with upgradable summoned units. You play as Spirit Summoner that can summon creature to destroy enemy defence. Upgrade summoned unit during game and plan the attack to succesfully break human defense. Summoned unit is weak, fragile, and unarmed at start but you can unlock more powerful unit later in game. you pick 3 units each game and plan your strategy to break armed human unit and defence. You fight modern human defence with zombie summoned unit.