Games like Fantastic Fishing
Games like Fantastic Fishing include Subnautica: Below Zero, Subnautica, Slime Rancher, ABZU, and DAVE THE DIVER. We matched them by the tags players give Fantastic Fishing on Steam (Casual, Indie, Adventure, Underwater, and Open World): closest matches first, and among equally close ones the better-known games.

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

Subnautica
Shared: Underwater · Open World · Horror

Slime Rancher
Shared: Adventure · Exploration · Open World

ABZU
Shared: Underwater · Adventure · Casual

DAVE THE DIVER
Shared: Casual · Adventure · Exploration

A Short Hike
Shared: Adventure · Indie · Exploration

Firewatch
Shared: Adventure · Indie · Singleplayer

Subnautica 2
Shared: Underwater · Exploration · Horror

The Forest
Shared: Open World · Adventure · Horror

Outer Wilds
Shared: Exploration · Adventure · Open World

Stray
Shared: Adventure · Singleplayer · Exploration

Fallout 4
Shared: Open World · Adventure · Exploration

The Long Dark
Shared: Open World · Exploration · Adventure

DREDGE
Shared: Exploration · Adventure · Open World

Sons Of The Forest
Shared: Open World · Horror · Adventure

Crimson Desert Enhanced
Shared: Open World · Adventure · Singleplayer

Don't Starve
Shared: Adventure · Indie · Singleplayer

Grow Up
Shared: Casual · Adventure · Open World

AER Memories of Old
Shared: Adventure · Indie · Exploration

Marvel’s Spider-Man Remastered
Shared: Open World · Adventure · Singleplayer

Grow Home
Shared: Adventure · Open World · Casual

Hogwarts Legacy
Shared: Open World · Adventure · Singleplayer

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

The Witness
Shared: Exploration · Open World · Indie