The waters of Fishdom are crystal clear – a perfect environment for merging pearls, starfish and other treasures in colourful match-3 levels. The better your puzzling prowess, the more virtual coins you’ll get to build your dream aquarium; the more tantalising your tank, the happier your fish will be!

What we love: Collecting adorable, exotic fish! Add clown fish, angelfish, seahorses and more to your aquarium, then watch their eyes light up when you drop in some beautiful plants and cool decorations. You can never have too many miniature castles and mermaid statues!

Quick tip: Repeatedly match more than three tiles at once to earn a lightning power-up that zaps away all tiles of a certain type. Manoeuvre two lightning power-ups together and you’ll clear the entire board in one mighty blast.

Meet the creator: Headquartered in Dublin, Ireland, Playrix is a big fish in the sea of puzzle-game makers – they’re the people behind Homescapes, Farmscapes and Wildscapes.