It's surely one of the best free PC games to play. And of course, you'll use match-3 gameplay to earn cash, upgrade your aquarium, and unlock new fish and decorations. It's up to you to tend to your aquatic occupants, clean the tanks, and complete quests from the various visitors who come seeking sea life adventures. But the aquarium is in need of some serious TLC. In Fishdom 3, you play as an aquarist whose job is to tend to the many fish and other sea creatures that call the aquarium home. With intuitive gameplay, jaw-dropping graphics, and hours of content, Fishdom 3 puts other match-3 games to shame. Dive into an aquatic adventure unlike any other! Fishdom 3 dazzles with its stunning ocean world, filled with sparkling reefs, mysterious caverns, and brightly colored fish just waiting to be matched.