Single-player games like Flounder
Below are 8 single-player Steam games similar to Flounder, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Flounder page.
Ranked picks
- 1
Loopquarium
Single-player alternative to Flounder — playable solo, no multiplayer required. Shares Action and Strategy with Flounder.
Loopquarium is an aquarium roguelite where you assemble a school of fish with unique abilities to repel invading apex predators. Start with a group of guppies, grow your population, and balance predator and prey to discover insane combos every run.
- 2
Chillquarium
Single-player alternative to Flounder — playable solo, no multiplayer required. Shares Simulation with Flounder.
Chillquarium is a cozy and relaxing idle game. Buy fish and raise them in real time, then sell them to turn a profit! Customize your aquarium as you progress from a simple starter tank to your dream setup by filling your collection with rare exotic fish and ultra-rare color variants!
- 3
Fishing Echoes
Single-player alternative to Flounder — playable solo, no multiplayer required. Shares Simulation with Flounder.
Fishing Echoes is a fantasy fishing game where you catch elemental fish to save the realm from a world-devouring maelstrom.
- 4
Pond Keeper
Single-player alternative to Flounder — playable solo, no multiplayer required. Shares Simulation with Flounder.
Breed your creatures to discover new genes to collect. Complete orders for your customers and decorate your ponds to earn the money and reputation needed to travel to new biomes. Restore a neglected aquatic world into a thriving paradise!
- 5
Fishing Fever
Single-player alternative to Flounder — playable solo, no multiplayer required.
An incremental roguelike fishing game. Start with one tool, end with five. Draft, upgrade and stack them, then hunt 70 species across eight oceans until the whole sea is biting at once. Rivals steal your cards. Something in the dark already knows your name. One more round. Always one more round.
- 6
Meow Squad: Incremental Fishing
Single-player alternative to Flounder — playable solo, no multiplayer required. Shares Strategy and Simulation with Flounder.
30 Seconds a Round, Easy to Pick Up! This relaxing, addictive fishing-themed incremental game combines incremental fishing with arcade-style boss battles. Across five seas, catch fish, train your meow squad, and challenge mysterious Overlords beneath the waves!
- 7
Soggy Beans
Single-player alternative to Flounder — playable solo, no multiplayer required. Shares Simulation with Flounder.
Fish will come, fish will go. Take photos, collect beans, decorate your seascape, then relax or do other things while your friends swim by in this calming side-idler.
- 8
Molluscarium
Single-player alternative to Flounder — playable solo, no multiplayer required. Shares Simulation with Flounder.
Relax and collect over 500 unique molluscs in this cozy idle game. Watch larvae grow into stunning adults in real-time, customize vibrant aquatic habitats across 9 themed packs, and discover rare species from garden snails to deep-sea cephalopods.