Games like Intergalactic Fishing
Games like Intergalactic Fishing include 鬼谷八荒 Tale of Immortal, Stardew Valley, DAVE THE DIVER, Potion Craft: Alchemist Simulator, and Disney Dreamlight Valley. We matched them by the tags players give Intergalactic Fishing on Steam (Fishing, RPG, Simulation, Procedural Generation, and Relaxing): closest matches first, and among equally close ones the better-known games.

鬼谷八荒 Tale of Immortal
Shared: Simulation · RPG · Singleplayer

Stardew Valley
Shared: RPG · Simulation · Relaxing

DAVE THE DIVER
Shared: Fishing · Relaxing · Exploration

Potion Craft: Alchemist Simulator
Shared: Simulation · Relaxing · Singleplayer

Disney Dreamlight Valley
Shared: Relaxing · Simulation · Exploration

Everything
Shared: Simulation · Relaxing · RPG

The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Sandbox · Simulation

My Time at Portia
Shared: RPG · Simulation · Singleplayer

DREDGE
Shared: Fishing · Exploration · RPG

Fallout 4
Shared: RPG · Exploration · Singleplayer

Fishing Planet
Shared: Fishing · Simulation · Relaxing

Mountain
Shared: Simulation · Relaxing · Indie

Graveyard Keeper
Shared: RPG · Simulation · Sandbox

No Man's Sky
Shared: Exploration · Procedural Generation · Sandbox

Fallout: New Vegas
Shared: RPG · Exploration · Singleplayer

Kerbal Space Program
Shared: Simulation · Sandbox · Indie

Superflight
Shared: Relaxing · Procedural Generation · Indie

Cyberpunk 2077
Shared: RPG · Singleplayer · Exploration

Coral Island
Shared: Simulation · Relaxing · RPG

Soulash 2
Shared: RPG · Procedural Generation · Sandbox

Mount & Blade II: Bannerlord
Shared: RPG · Sandbox · Simulation

SPORE™
Shared: Simulation · Sandbox · Exploration

Endless Sky
Shared: Simulation · RPG · Singleplayer

Cat Goes Fishing
Shared: Fishing · Indie · 2D