Games like Fisherman Simulator
Games like Fisherman Simulator include Slime Rancher, DAVE THE DIVER, DREDGE, Disney Dreamlight Valley, and ABZU. We matched them by the tags players give Fisherman Simulator on Steam (Exploration, Fishing, Adventure, Sailing, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Slime Rancher
Shared: Exploration · Adventure · Singleplayer

DAVE THE DIVER
Shared: Adventure · Exploration · Fishing

DREDGE
Shared: Exploration · Fishing · Adventure

Disney Dreamlight Valley
Shared: Exploration · Adventure · Simulation

ABZU
Shared: Exploration · Adventure · Singleplayer

Fallout 4
Shared: Exploration · Open World · Singleplayer

The Long Dark
Shared: Exploration · Open World · Singleplayer

My Time at Portia
Shared: Open World · Adventure · Singleplayer

Critter Cove
Shared: Exploration · Fishing · Stylized

Subnautica
Shared: Exploration · Open World · Singleplayer

Hello Kitty Island Adventure
Shared: Adventure · Open World · Exploration

Sailwind
Shared: Sailing · Open World · Fishing

Slime Rancher 2
Shared: Singleplayer · Open World · Adventure

No Man's Sky
Shared: Exploration · Open World · Adventure

Cat Goes Fishing
Shared: Fishing · Exploration · Singleplayer

A Short Hike
Shared: Exploration · Adventure · Open World

Crimson Desert Enhanced
Shared: Exploration · Singleplayer · Open World

Subnautica: Below Zero
Shared: Exploration · Singleplayer · Open World

SPORE™
Shared: Exploration · Open World · Simulation

American Truck Simulator
Shared: Open World · Exploration · Simulation

Feed and Grow: Fish
Shared: Simulation · Open World · Underwater

Cairn
Shared: Exploration · Adventure · Stylized

Big Walk
Shared: Exploration · Adventure · Open World

Hogwarts Legacy
Shared: Adventure · Open World · Singleplayer