Games like Dear Diary
Games like Dear Diary include What Remains of Edith Finch, Firewatch, A Plague Tale: Requiem, Quern - Undying Thoughts, and Riven. We matched them by the tags players give Dear Diary on Steam (Adventure, Exploration, Atmospheric, Puzzle, and Walking Simulator): closest matches first, and among equally close ones the better-known games.

What Remains of Edith Finch
Shared: Atmospheric · Walking Simulator · Exploration

Firewatch
Shared: Adventure · Atmospheric · Walking Simulator

A Plague Tale: Requiem
Shared: Adventure · Exploration · Atmospheric

Quern - Undying Thoughts
Shared: Adventure · Puzzle · Atmospheric

Riven
Shared: Adventure · Exploration · Puzzle

Outer Wilds
Shared: Exploration · Adventure · Atmospheric

ROUTINE
Shared: Atmospheric · Adventure · Dark

Luto
Shared: Walking Simulator · Exploration · Dark

Amenti
Shared: Adventure · Exploration · Atmospheric

Hellblade: Senua's Sacrifice
Shared: Atmospheric · Adventure · Dark

Tomb Raider Game of the Year
Shared: Adventure · Exploration · Atmospheric

DEATH STRANDING DIRECTOR'S CUT
Shared: Atmospheric · Walking Simulator · Adventure

The Witness
Shared: Exploration · Puzzle · Atmospheric

INFRA
Shared: Exploration · Atmospheric · Puzzle

The Beginner's Guide
Shared: Atmospheric · Walking Simulator · Adventure

Millennium Dream
Shared: Adventure · Exploration · Walking Simulator

SOMA
Shared: Atmospheric · Exploration · Dark

Spirit of the North
Shared: Adventure · Atmospheric · Exploration

Stray
Shared: Adventure · Atmospheric · Exploration

The Suicide of Rachel Foster
Shared: Adventure · Atmospheric · Walking Simulator

Gone Home
Shared: Exploration · Walking Simulator · Atmospheric

Scanner Sombre
Shared: Exploration · Adventure · Atmospheric

The Exit 8
Shared: Exploration · Puzzle · Walking Simulator

Call of the Sea
Shared: Adventure · Puzzle · Atmospheric