Games like Slime Rancher
Games like Slime Rancher include Slime Rancher 2, Fallout 4, SPORE™, The Long Dark, and Thief Simulator. We matched them by the tags players give Slime Rancher on Steam (Cute, Exploration, Adventure, Singleplayer, and Open World): closest matches first, and among equally close ones the better-known games.

Slime Rancher 2
Shared: Cute · Singleplayer · Open World

Fallout 4
Shared: Exploration · Open World · Singleplayer

SPORE™
Shared: Open World · Exploration · Cute

The Long Dark
Shared: Exploration · Open World · Singleplayer

Thief Simulator
Shared: Singleplayer · First-Person · Adventure

Totally Accurate Battle Simulator
Shared: Sandbox · Singleplayer · Funny

A Hat in Time
Shared: Cute · Adventure · Funny

Grand Theft Auto V Legacy
Shared: Open World · Adventure · First-Person

Firewatch
Shared: Adventure · Exploration · Singleplayer

A Short Hike
Shared: Exploration · Adventure · Cute

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

The Forest
Shared: Open World · Adventure · Exploration

The Elder Scrolls IV: Oblivion® Game of the Year Edition (2009)
Shared: Open World · Singleplayer · Adventure

Crimson Desert Enhanced
Shared: Exploration · Singleplayer · Open World

Wobbly Life
Shared: Adventure · Open World · Sandbox

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

Fallout: New Vegas
Shared: Open World · Singleplayer · Exploration

The Elder Scrolls IV: Oblivion Remastered
Shared: Open World · Singleplayer · Adventure

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

Hogwarts Legacy
Shared: Open World · Singleplayer · Adventure

The Witness
Shared: Exploration · Singleplayer · Open World

Stray
Shared: Adventure · Singleplayer · Exploration

Little Kitty, Big City
Shared: Cute · Exploration · Funny

Bully: Scholarship Edition
Shared: Adventure · Open World · Singleplayer