Games like Toska
Games like Toska include Slime Rancher, OneShot, Big Walk, Momodora: Reverie Under The Moonlight, and The Witness. We matched them by the tags players give Toska on Steam (Exploration, Side Scroller, Open World, Multiple Endings, and Puzzle): closest matches first, and among equally close ones the better-known games.

Slime Rancher
Shared: Exploration · Open World · Cute

OneShot
Shared: Puzzle · Multiple Endings · Exploration

Big Walk
Shared: Exploration · Open World · Puzzle

Momodora: Reverie Under The Moonlight
Shared: Side Scroller · Exploration · 2D Platformer

The Witness
Shared: Exploration · Puzzle · Open World

Sable
Shared: Exploration · Open World · Multiple Endings

Terraria
Shared: Sandbox · Exploration · Open World

A Hat in Time
Shared: Collectathon · Exploration · Cute

Hollow Knight
Shared: Exploration · Platformer · Multiple Endings

Afterimage
Shared: Side Scroller · Exploration · 2D Platformer

Rise of the Tomb Raider™
Shared: Exploration · Open World · Female Protagonist

Rain World
Shared: Exploration · Open World · Platformer

Webbed
Shared: Exploration · 2D Platformer · Cute

Outer Wilds
Shared: Exploration · Open World · Puzzle

SPORE™
Shared: Open World · Exploration · Sandbox

A Short Hike
Shared: Exploration · Open World · Cute

Assassin's Creed® Odyssey
Shared: Open World · Exploration · Multiple Endings

FEZ
Shared: Exploration · Puzzle · Platformer

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

Carto
Shared: Exploration · Puzzle · Cute

Fallout 4
Shared: Open World · Exploration · Adventure

Thank Goodness You're Here!
Shared: Exploration · 2D Platformer · Side Scroller

The Long Dark
Shared: Exploration · Open World · Sandbox

ANIMAL WELL
Shared: Exploration · Puzzle · Platformer