Games like The Riven Companion
Games like The Riven Companion include Firewatch, What Remains of Edith Finch, Riven, Outer Wilds, and Blue Prince. We matched them by the tags players give The Riven Companion on Steam (Adventure, Casual, Puzzle, Exploration, and First-Person): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Story Rich · Atmospheric

What Remains of Edith Finch
Shared: Story Rich · Adventure · First-Person

Riven
Shared: Adventure · Puzzle · Exploration

Outer Wilds
Shared: Exploration · Adventure · Story Rich

Blue Prince
Shared: Puzzle · Exploration · Mystery

Call of the Sea
Shared: Adventure · Puzzle · First-Person

The Witness
Shared: Puzzle · Exploration · First-Person

Quern - Undying Thoughts
Shared: Adventure · Puzzle · Exploration

The Talos Principle
Shared: Puzzle · First-Person · Story Rich

The Room 4: Old Sins
Shared: Puzzle · Adventure · Mystery

The Room
Shared: Puzzle · Adventure · Mystery

Obduction
Shared: Adventure · Puzzle · Exploration

Spirit of the North
Shared: Adventure · Puzzle · Exploration

INFRA
Shared: Puzzle · Exploration · Adventure

Return of the Obra Dinn
Shared: Puzzle · Story Rich · Mystery

The Beginner's Guide
Shared: Story Rich · First-Person · Adventure

Myst
Shared: Adventure · Puzzle · Exploration

The Unfinished Swan
Shared: Adventure · Puzzle · Exploration

Moncage
Shared: Casual · Puzzle · Adventure

A Story About My Uncle
Shared: Adventure · First-Person · Singleplayer

Fallout 4
Shared: Adventure · Exploration · Singleplayer

Murders on the Yangtze River
Shared: Adventure · Puzzle · Story Rich

Brothers - A Tale of Two Sons
Shared: Adventure · Story Rich · Puzzle

The Painscreek Killings
Shared: Exploration · Puzzle · Mystery