HAEX is a co-op survival action game set in a procedurally generated open world, where each expedition becomes a struggle against the cold, the unknown, and a mysterious alien force. Players must explore vast snowy landscapes, search for missing scientists, mine resources, and uncover the mystery of the fog gradually engulfing the world. Character progression continues independently from the current world, allowing players to continually grow stronger and prepare for new adventures. Every world hides its own threats Exploration begins with searching for resources and setting up forays, but more dangerous regions quickly emerge, inhabited by aggressive creatures and concealing traces of mysterious events. A particularly important role is played by the sentient alien cube, which helps gather materials, unlocks new abilities, and gradually becomes an indispensable companion. With it, dashes, double jumps, and other abilities for traversing difficult terrain become available. Survival requires constant consideration of weather conditions, food supplies, and the quality of your gear. The further you advance through the fog, the greater the challenges become. To overcome them, you must craft new weapons, seek out rare schematics, and customize your gear to suit your fighting style. Firearms, melee weapons, and special gadgets allow you to approach each dangerous encounter differently. Features of the game Co-op survival for four players. Procedurally generated worlds with unique stories. Alien abilities and the development of a sentient cube. Flexible system of equipment creation and modification.