Games like Sketch Tales
Games like Sketch Tales include Rust, Fallout 4, Sands of Salzaar, Mount & Blade: Warband, and Mount & Blade II: Bannerlord. We matched them by the tags players give Sketch Tales on Steam (Early Access, Adventure, Sandbox, Indie, and RPG): closest matches first, and among equally close ones the better-known games.

Rust
Shared: Open World · Sandbox · Adventure

Fallout 4
Shared: Adventure · Open World · RPG

Sands of Salzaar
Shared: RPG · Adventure · Open World

Mount & Blade: Warband
Shared: RPG · Sandbox · Open World

Mount & Blade II: Bannerlord
Shared: RPG · Sandbox · Open World

Grand Theft Auto V Legacy
Shared: Action · Open World · Adventure

Tainted Grail: The Fall of Avalon
Shared: Adventure · RPG · Open World

Last Oasis
Shared: Adventure · RPG · Open World

The Scroll of Taiwu : Beyond The Dome
Shared: Sandbox · RPG · Indie

Fallout: New Vegas
Shared: RPG · Open World · Adventure

The Witcher 3: Wild Hunt — Remastered
Shared: RPG · Adventure · Open World

Farever
Shared: RPG · Adventure · Action

Dragon's Dogma 2
Shared: RPG · Open World · Adventure

Wobbly Life
Shared: Adventure · Sandbox · Open World

Terraria
Shared: Sandbox · Adventure · Indie

Monster Hunter: World
Shared: Action · RPG · Adventure

The Forest
Shared: Adventure · Open World · Action

Middle-earth™: Shadow of Mordor™
Shared: Adventure · Action · Open World

ARK: Survival Evolved
Shared: Adventure · Open World · Sandbox

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

Mount & Blade
Shared: RPG · Sandbox · Open World

Kingdom Come: Deliverance II
Shared: RPG · Open World · Adventure

Middle-earth: Shadow of War
Shared: RPG · Adventure · Action

Kingdom Come: Deliverance
Shared: RPG · Open World · Adventure