Citadel 1986 - pixel platformer with "zakos" for retro projects of the end of the last century, in which you have to help the protagonist to travel through an unusual world filled with dangerous traps and deadly obstacles. From the game story, we learn that the protagonist was in an incomprehensible way in a fantasy world, and everything that surrounds him is trying to harm him. In order to survive in a hostile world and get a chance to return to their native penates, the character needs to collect a collection of gold keys that are hidden in each location. Combined all the locations between the doors, which can only be opened by collecting the appropriate number of keys. That is, until you collect all the elements on the same level, it's not worth dreaming about moving to the next stage. For navigation around the location, the screen arrows respond, and a single button allows the character to jump. Try to move quickly and carefully around the game area, look for treasured keys and overcome with the help of jumps local aborigines, who are disguised for a variety of items, at first glance, not completely dangerous - phones, loaves and stuff. The complexity in the game increases gradually, it is noticeable by introducing levels of evaporating platforms, deep abysses, fiery lava, explosives and so on. Only having overcome all difficulties, you can learn the truth, namely why and how the protagonist found himself in such a strange world.