Games like Go Outside
Games like Go Outside include Grand Theft Auto V Legacy, Wuthering Waves, Fallout 4, Crimson Desert Enhanced, and Fallout: New Vegas. We matched them by the tags players give Go Outside on Steam (Indie, 3D, Open World, Action, and Exploration): closest matches first, and among equally close ones the better-known games.

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

Wuthering Waves
Shared: Open World · Action · Free to Play

Fallout 4
Shared: Open World · Exploration · Singleplayer

Crimson Desert Enhanced
Shared: Open World · Action · Exploration

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

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

The Long Dark
Shared: Open World · Exploration · First-Person

Once Human
Shared: Open World · Action · Free to Play

Halo Infinite
Shared: Free to Play · Action · Open World

We Happy Few
Shared: Open World · Action · Indie

Tainted Grail: The Fall of Avalon
Shared: Open World · First-Person · Exploration

Cyberpunk 2077
Shared: Open World · Singleplayer · First-Person

Avatar: Frontiers of Pandora™
Shared: Open World · Action · Exploration

Sonic Frontiers
Shared: Open World · Action · Exploration

Starfield
Shared: Open World · Exploration · Singleplayer

STAR WARS Jedi: Survivor™
Shared: Action · Open World · Singleplayer

Valley
Shared: Indie · Exploration · First-Person

The Witness
Shared: Open World · Exploration · Indie

No Man's Sky
Shared: Open World · Exploration · First-Person

Just Cause™ 3
Shared: Open World · Action · Singleplayer

Firewatch
Shared: First-Person · Indie · Open World

Metro Exodus
Shared: Open World · Action · Singleplayer

Slime Rancher
Shared: Exploration · Open World · First-Person

Marvel’s Spider-Man Remastered
Shared: Open World · Action · Singleplayer