Games like Letters to Arralla
Games like Letters to Arralla include Slime Rancher, Hello Kitty Island Adventure, TOEM: A Photo Adventure, Hogwarts Legacy, and A Short Hike. We matched them by the tags players give Letters to Arralla on Steam (Cozy, Adventure, Casual, RPG, and Exploration): closest matches first, and among equally close ones the better-known games.

Slime Rancher
Shared: Adventure · Exploration · Cute

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

TOEM: A Photo Adventure
Shared: Cozy · Adventure · Exploration

Hogwarts Legacy
Shared: Adventure · RPG · Open World

A Short Hike
Shared: Adventure · Exploration · Casual

Firewatch
Shared: Adventure · Exploration · Walking Simulator

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

Big Walk
Shared: Adventure · Exploration · Puzzle

Fallout 4
Shared: Adventure · RPG · Exploration

Carto
Shared: Exploration · Adventure · Puzzle

Smushi Come Home
Shared: Adventure · Cozy · Exploration

Turnip Boy Commits Tax Evasion
Shared: Exploration · RPG · Puzzle

Alba: A Wildlife Adventure
Shared: Cozy · Casual · Adventure

The Elder Scrolls Online - Standard Edition
Shared: RPG · Adventure · Open World

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

Spirit of the North
Shared: Adventure · Casual · Exploration

Donut County
Shared: Casual · Adventure · Puzzle

DAVE THE DIVER
Shared: Casual · Adventure · Exploration

Stray
Shared: Adventure · Exploration · Puzzle

Snufkin: Melody of Moominvalley
Shared: RPG · Puzzle · Adventure

There Is No Game: Wrong Dimension
Shared: Adventure · Puzzle · Casual

South Park™: The Stick of Truth™
Shared: Adventure · RPG · Comedy

Scribblenauts Unlimited
Shared: Adventure · Casual · Puzzle

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