Games like Colossal Cave
Games like Colossal Cave include Strange Horticulture, The Room 4: Old Sins, Firewatch, Outer Wilds, and The Room. We matched them by the tags players give Colossal Cave on Steam (Adventure, Point & Click, Exploration, Atmospheric, and Retro): closest matches first, and among equally close ones the better-known games.

Strange Horticulture
Shared: Cozy · Point & Click · Puzzle

The Room 4: Old Sins
Shared: Point & Click · Adventure · Puzzle

Firewatch
Shared: Adventure · Atmospheric · Exploration

Outer Wilds
Shared: Exploration · Adventure · Atmospheric

The Room
Shared: Point & Click · Adventure · Atmospheric

Obduction
Shared: Adventure · Exploration · Puzzle

What Remains of Edith Finch
Shared: Atmospheric · Adventure · Exploration

Endacopia
Shared: Adventure · Point & Click · Exploration

Myst
Shared: Adventure · Exploration · Puzzle

The House of Da Vinci
Shared: Point & Click · Exploration · Puzzle

Strange Antiquities
Shared: Cozy · Point & Click · Puzzle

Chants of Sennaar
Shared: Adventure · Point & Click · Puzzle

The Room Two
Shared: Point & Click · Atmospheric · Adventure

Spirit of the North
Shared: Adventure · Atmospheric · Exploration

Riven
Shared: Adventure · Exploration · Puzzle

Quern - Undying Thoughts
Shared: Adventure · Atmospheric · Exploration

The Room Three
Shared: Adventure · Point & Click · Puzzle

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

Hogwarts Legacy
Shared: Adventure · Exploration · Fantasy

The Witness
Shared: Exploration · Puzzle · Atmospheric

Stray
Shared: Adventure · Atmospheric · Exploration

Blue Prince
Shared: Exploration · Puzzle · Adventure

Big Walk
Shared: Exploration · Adventure · Puzzle

Syberia: The World Before
Shared: Adventure · Point & Click · Exploration