Single-player games like Fantastic Fishing
Below are 10 single-player Steam games similar to Fantastic Fishing, 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 Fantastic Fishing page.
Ranked picks
- 1

Subnautica
Single-player alternative to Fantastic Fishing — playable solo, no multiplayer required. Shares Indie and Adventure with Fantastic Fishing.
Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
- 2

ABZU
Single-player alternative to Fantastic Fishing — playable solo, no multiplayer required. Shares Indie and Adventure with Fantastic Fishing.
From the art director of Journey®, ABZÛ is a beautiful underwater adventure that evokes the dream of diving. Immerse yourself in a vibrant hidden world bursting with color and life as you descend into the heart of the ocean. But beware as you swim deeper as dangers lurk in the depths.
- 3

Beyond Blue
Single-player alternative to Fantastic Fishing — playable solo, no multiplayer required. Shares Indie and Adventure with Fantastic Fishing.
Beyond Blue is a single-player narrative adventure that takes you deep into our planet’s beating blue heart. Explore the awesome wonder and unbounded mystery that exists within the world’s ocean.
- 4

Loddlenaut
Single-player alternative to Fantastic Fishing — playable solo, no multiplayer required. Shares Indie and Adventure with Fantastic Fishing.
Play as an interstellar custodian sent to clean up a polluted ocean planet. Pick up trash, explore the vibrant waters, and take care of axolotl-like alien creatures!
- 5

FarSky
Single-player alternative to Fantastic Fishing — playable solo, no multiplayer required. Shares Indie and Adventure with Fantastic Fishing.
FarSky is a short survival game in the depths of the Ocean. Collect all the pieces of your submarine and reach back the surface.
- 6

SUNLESS SEA
Single-player alternative to Fantastic Fishing — playable solo, no multiplayer required. Shares Indie and Adventure with Fantastic Fishing.
LOSE YOUR MIND. EAT YOUR CREW. DIE. Take the helm of your steamship and set sail for the unknown! Sunless Sea is a game of discovery, loneliness and frequent death, set in the award-winning Victorian Gothic universe of Fallen London.
- 7

The Forest
Single-player alternative to Fantastic Fishing — playable solo, no multiplayer required. Shares Indie and Adventure with Fantastic Fishing.
As the lone survivor of a passenger jet crash, you find yourself in a mysterious forest battling to stay alive against a society of cannibalistic mutants. Build, explore, survive in this terrifying first person survival horror simulator.
- 8

Under The Waves
Single-player alternative to Fantastic Fishing — playable solo, no multiplayer required. Shares Indie and Adventure with Fantastic Fishing.
Stan, a professional diver in the North Sea, is struggling to overcome a life-changing loss during an extended mission underwater. Stuck in his self-imposed solitude, he starts to experience strange events and will have to make the most significant choice of his life...
- 9

Periodic Deliveries
Single-player alternative to Fantastic Fishing — playable solo, no multiplayer required.
As the director of your own space shipping company, design and optimize a galactic trade network to efficiently move goods to where they're needed. Start from nothing and expand your profits and technology until your influence reaches across the galaxy.
- 10

Coin Commander
Single-player alternative to Fantastic Fishing — playable solo, no multiplayer required. Shares Indie and Casual with Fantastic Fishing.
The enemy is invading and resources are limited. They look to you, their newly elected war commander, to use your limited funds to pay for mercenaries to protect against the oncoming hordes of enemies. You will be outnumbered, but with better tactics, you will prevail.