Rimworld with rats. It’s a simple concept, yet a tremendously appealing one. Cute colony sim Ratopia has just left early access after 18 months, and developer Cassel Games has a special Steam sale to celebrate. Boasting an impressive 88% user rating, its adorable art style and clean UI gives its detailed social simulation and intricate systems an immediately eye-catching look, and 1.0 brings a whole swarm of upgrades to the table. Continue reading Colony sim Ratopia is basically Rimworld with rats, and it just hit 1.0 MORE FROM PCGAMESN: Best indie games, New PC games, Best PC games