Judgment: Apocalypse Survival Simulation puts the player in control of a group of survivors with the ultimate goal to stop an ongoing Apocalypse. First, survivors need to eat, drink and sleep, and for that they build a sustainable base and defend it against demon attacks. The economy of the base is one of the most important parts of the game: survivors have to farm, mine, plant or scavenge different basic resources – and use them to build facilities, craft equipment, and research for technologies and magic. Survivors have different professions, making them more efficient in some tasks than others; they can also gain experience and level up to improve their skills. There are also different random events that serve as a sort of side missions, such as having to gather some resources in order to perform a ritual to remove a curse. In the end, victory can only be achieved by researching for a way to close the Hellgate that the demons are using to enter the world.