Games like Lord Temin's Fortress
Games like Lord Temin's Fortress include A Story About My Uncle, Portal 2, PEAK, SchoolBoy Runaway, and Riven. We matched them by the tags players give Lord Temin's Fortress on Steam (Adventure, First-Person, Puzzle, Fantasy, and 3D): closest matches first, and among equally close ones the better-known games.

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

Portal 2
Shared: Puzzle · First-Person · Adventure

PEAK
Shared: Adventure · First-Person · 3D

SchoolBoy Runaway
Shared: Adventure · Puzzle · First-Person

Riven
Shared: Adventure · Puzzle · First-Person

Order of the Sinking Star
Shared: Adventure · Puzzle · 3D

Indiana Jones and the Great Circle
Shared: First-Person · Puzzle · Adventure

We Were Here Forever
Shared: Puzzle · 3D · Fantasy

The Room 4: Old Sins
Shared: Puzzle · Adventure · First-Person

The Last Campfire
Shared: Adventure · Puzzle · Fantasy

Avowed
Shared: First-Person · Fantasy · Adventure

Quern - Undying Thoughts
Shared: Adventure · Puzzle · First-Person

The Elder Scrolls IV: Oblivion Remastered
Shared: Adventure · Fantasy · First-Person

Inside the Backrooms
Shared: Puzzle · Adventure · First-Person

Superliminal
Shared: First-Person · Puzzle · Adventure

Big Walk
Shared: Puzzle · Adventure · First-Person

Poppy Playtime
Shared: Puzzle · First-Person · Adventure

Escape Simulator
Shared: Puzzle · First-Person · Adventure

BioShock Infinite
Shared: First-Person · Adventure · Fantasy

Amanda the Adventurer
Shared: First-Person · Puzzle · Adventure

The Elder Scrolls IV: Oblivion® Game of the Year Edition (2009)
Shared: Fantasy · First-Person · Adventure

The Talos Principle
Shared: Puzzle · First-Person · Adventure

Slime Rancher
Shared: Adventure · First-Person · Fantasy

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