Reus is a game where you control four giant creatures to help shape a planet and its inhabitants. The forest, mountain, ocean, and swamp giants work together in harmony, each bringing unique plants, animals, and minerals that can be upgraded with special bonuses. As humans settle down, they'll start to grow and evolve based on the benefits provided by these giants within their settlements. However, if the humans become too greedy, they may attack other settlements, prompting the giants to unleash their powerful natural abilities to punish them.
The gameplay in Reus revolves around managing the relationships between the four giant creatures and the humans living on the planet. You'll need to balance their needs and desires to keep the humans happy and healthy. The game's world is full of challenges, from natural disasters to human conflicts, which you'll need to mitigate using your giants' abilities.