Berlin (dpa) — In “The Last Alchemist,” PC gamers take on the role of the last living alchemist who returns to an abandoned workshop after the death of his master. In a world in which science and magic merge, he is faced with the task of finding a cure for a devastating plague. As an apprentice, you begin to combine essences and brew potions. Help is provided by a friendly mushroom people, the Agari. The game system rewards both the joy of experimentation and strategic thinking. However, some puzzles are repeated, which somewhat spoils the fun and flow of the game. The world of “The Last Alche…