Games like Zone 6
Games like Zone 6 include Hogwarts Legacy, Stray, The Elder Scrolls Online - Standard Edition, Clair Obscur: Expedition 33, and Crimson Desert Enhanced. We matched them by the tags players give Zone 6 on Steam (Exploration, Fantasy, Visual Novel, Singleplayer, and Local Multiplayer): closest matches first, and among equally close ones the better-known games.

Hogwarts Legacy
Shared: Fantasy · Singleplayer · Exploration

Stray
Shared: Exploration · Singleplayer · Adventure

The Elder Scrolls Online - Standard Edition
Shared: Fantasy · Exploration · Adventure

Clair Obscur: Expedition 33
Shared: Fantasy · Exploration · Singleplayer

Crimson Desert Enhanced
Shared: Exploration · Singleplayer · Fantasy

The Elder Scrolls IV: Oblivion® Game of the Year Edition (2009)
Shared: Fantasy · Singleplayer · Exploration

Slime Rancher
Shared: Exploration · Singleplayer · Adventure

Cyberpunk 2077
Shared: Cyberpunk · Singleplayer · Exploration

The Elder Scrolls IV: Oblivion Remastered
Shared: Fantasy · Singleplayer · Exploration

Fallout 4
Shared: Exploration · Singleplayer · Adventure

The Witcher 3: Wild Hunt — Remastered
Shared: Fantasy · Singleplayer · Adventure

WITCH ON THE HOLY NIGHT
Shared: Visual Novel · Adventure · Magic

FINAL FANTASY VI
Shared: Singleplayer · Fantasy · Exploration

Dragon's Dogma 2
Shared: Fantasy · Singleplayer · Adventure

FINAL FANTASY III
Shared: Singleplayer · Exploration · Fantasy

No Man's Sky
Shared: Exploration · Sci-fi · Adventure

Starfield
Shared: Singleplayer · Exploration · Sci-fi

Urban Myth Dissolution Center
Shared: Visual Novel · Exploration · Singleplayer

The Elder Scrolls III: Morrowind Game of the Year Edition
Shared: Fantasy · Singleplayer · Exploration

Fate/stay night REMASTERED
Shared: Visual Novel · Adventure · Magic

God of War
Shared: Singleplayer · Adventure · Fantasy

Disney Dreamlight Valley
Shared: Exploration · Fantasy · Adventure

Outer Wilds
Shared: Exploration · Adventure · Singleplayer

STAR WARS™ Knights of the Old Republic™
Shared: Singleplayer · Sci-fi · Adventure