Mortifer is a knowledge-based competitive shooter Play to Earn game, compounded with blockchain technology. Players fight each other, with the outcome of the battle determined by the proper weapon selection and strategy. Everything in the game depends on the player’s decision; the game does not feature any randomization whatsoever. The key elements are choosing the right configuration before the battles, maintaining rapid situational awareness and choosing a good strategy. Luck has no role, so whether the player can achieve victory is solely up to him or her. As a means to earn money, the players can win fights or trade their Mortifer Champions on the various markets.