Loopquarium is a new pixel art deckbuilding title from developer Fellswell that has just been revealed and will be casting out on Steam soon. Loopquarium is an aquarium roguelite where players assemble a school of fish with unique abilities to repel invading apex predators. They’ll start with a group of guppies, grow their population, and balance predator and prey to discover insane combos every run.
Predators hunt, gather resources, and defend the tank. Prey keep the ecosystem thriving with unique abilities of their own. Players will need to keep the aquarium in harmony through the day, because when light fades, unexpected threats rise and turn things upside down. Blending deckbuilding with aquarium management, Loopquarium scratches two very different itches at once: the cozy calm of caring for a fish tank, and the escalating chaos of protecting it from whatever lurks at night.
Key features:
Unlock 60 fish types, 60 items, and 14 bosses. All with unique behavior and abilities.
Endlessly Replayability: Strategize and build new combos every run
Meta-progression: Become stronger as you unlock permanent upgrades and pets across runs
Play at Any Pace: Difficulty ranges from combat-free Zen to relentless Boss Rush
Cozy Tank to Call Your Own: Catch rare fish variants to be kept in the peaceful Virtual Tank mode


