Games like Saurian
Games like Saurian include The Isle, Beasts of Bermuda, ARK: Survival Evolved, Feed and Grow: Fish, and ARK: Survival Ascended. We matched them by the tags players give Saurian on Steam (Dinosaurs, Simulation, Survival, Realistic, and Open World): closest matches first, and among equally close ones the better-known games.

The Isle
Shared: Dinosaurs · Survival · Simulation

Beasts of Bermuda
Shared: Dinosaurs · Simulation · Survival

ARK: Survival Evolved
Shared: Survival · Dinosaurs · Open World

Feed and Grow: Fish
Shared: Simulation · Survival · Early Access

ARK: Survival Ascended
Shared: Survival · Dinosaurs · Open World

Don't Starve Together
Shared: Survival · Open World · Multiplayer

My Summer Car
Shared: Simulation · Survival · Open World

Project Zomboid
Shared: Survival · Open World · Multiplayer

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

Stranded Deep
Shared: Survival · Open World · Multiplayer

The Long Dark
Shared: Survival · Open World · Singleplayer

Sons Of The Forest
Shared: Survival · Open World · Multiplayer

The Long Drive
Shared: Survival · Open World · Multiplayer

Red Dead Redemption 2
Shared: Open World · Realistic · Multiplayer

BeamNG.drive
Shared: Simulation · Realistic · Open World

Raft
Shared: Survival · Open World · Multiplayer

Forza Horizon 5
Shared: Open World · Simulation · Realistic

Microsoft Flight Simulator X: Steam Edition
Shared: Simulation · Realistic · Open World

The Forest
Shared: Survival · Open World · Adventure

Green Hell
Shared: Survival · Open World · Multiplayer

Don't Starve
Shared: Survival · Indie · Adventure

Drive Beyond Horizons
Shared: Survival · Simulation · Open World

American Truck Simulator
Shared: Simulation · Open World · Realistic

No Man's Sky
Shared: Open World · Survival · Multiplayer

