Games like HOSTLIGHT
Games like HOSTLIGHT include Portal 2, Portal, Human Fall Flat, LIMBO, and Chained Together. We matched them by the tags players give HOSTLIGHT on Steam (Puzzle, Puzzle Platformer, Adventure, Strategy, and Casual): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Puzzle · Singleplayer · Puzzle Platformer

Portal
Shared: Puzzle · Puzzle Platformer · Singleplayer

Human Fall Flat
Shared: Puzzle · Adventure · Puzzle Platformer

LIMBO
Shared: Puzzle Platformer · Puzzle · Adventure

Chained Together
Shared: Adventure · Casual · Puzzle Platformer

Supraland
Shared: Puzzle Platformer · Adventure · Puzzle

Viewfinder
Shared: Puzzle · Puzzle Platformer · Singleplayer

FEZ
Shared: Puzzle · Adventure · Platformer

Little Nightmares
Shared: Adventure · Puzzle Platformer · Puzzle

Donut County
Shared: Puzzle · Casual · Adventure

Monument Valley
Shared: Puzzle · Adventure · Casual

Scribblenauts Unlimited
Shared: Puzzle · Adventure · Casual

Superliminal
Shared: Puzzle · Singleplayer · Physics

Little Nightmares II
Shared: Adventure · Puzzle · Singleplayer

BEEP
Shared: Adventure · Puzzle · Singleplayer

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

Quantum Conundrum
Shared: Puzzle · Puzzle Platformer · Casual

The Room
Shared: Puzzle · Adventure · Singleplayer

Moncage
Shared: Puzzle · Casual · Adventure

COCOON
Shared: Puzzle · Adventure · Puzzle Platformer

Defy Gravity Extended
Shared: Puzzle Platformer · Puzzle · Platformer

INSIDE
Shared: Puzzle Platformer · Adventure · Singleplayer

Totally Accurate Battle Simulator
Shared: Strategy · Funny · Adventure

Nihilumbra
Shared: Adventure · Puzzle · Puzzle Platformer