Games like Master Bobber
Games like Master Bobber include BeamNG.drive, Sonic Frontiers, Goat Simulator 3, Microsoft Flight Simulator (2020) 40th Anniversary Edition, and X-Plane 12. We matched them by the tags players give Master Bobber on Steam (Simulation, Action-Adventure, 3D Platformer, 3D, and Fishing): closest matches first, and among equally close ones the better-known games.

BeamNG.drive
Shared: Simulation · Physics · Open World

Sonic Frontiers
Shared: 3D Platformer · Open World · Action-Adventure

Goat Simulator 3
Shared: Simulation · Physics · Action-Adventure

Microsoft Flight Simulator (2020) 40th Anniversary Edition
Shared: Simulation · Open World · Singleplayer

X-Plane 12
Shared: Simulation · 3D · Action-Adventure

X-Plane 11
Shared: Simulation · Open World · Physics

Goat Simulator
Shared: Simulation · Open World · Physics

Rooftops & Alleys: The Parkour Game
Shared: Simulation · 3D Platformer · 3D

Fishing Planet
Shared: Simulation · Fishing · Open World

Ultimate Fishing Simulator
Shared: Simulation · 3D · Fishing

City Car Driving
Shared: Simulation · Open World · Singleplayer

Assetto Corsa
Shared: Simulation · Open World · VR

Totally Accurate Battle Simulator
Shared: Simulation · Physics · Singleplayer

Where Winds Meet
Shared: Open World · Action-Adventure · Singleplayer

Contraband Police
Shared: Simulation · Open World · Singleplayer

Assassin’s Creed Shadows
Shared: Action-Adventure · Open World · 3D

Fishing: North Atlantic - Enhanced Edition
Shared: Simulation · Fishing · Open World

Prison Escape Simulator: Dig Out
Shared: Simulation · 3D · Action-Adventure

Far Cry® 5
Shared: Action-Adventure · Open World · Hunting

Call of the Wild: The Angler™
Shared: Simulation · Fishing · Open World

theHunter: Call of the Wild™
Shared: Hunting · Open World · Simulation

Kerbal Space Program
Shared: Simulation · Physics · Open World

Assassin's Creed® Odyssey
Shared: Action-Adventure · Open World · Singleplayer

Space Engineers
Shared: Simulation · Open World · Physics