Games like 1.96.9 all update
Games like 1.96.9 all update include LIMBO, Papers, Please, Portal, There Is No Game: Wrong Dimension, and Firework. We matched them by the tags players give 1.96.9 all update on Steam (Puzzle, 2D, Singleplayer, Simulation, and Puzzle Platformer): closest matches first, and among equally close ones the better-known games.

LIMBO
Shared: Puzzle · Puzzle Platformer · 2D

Papers, Please
Shared: Simulation · Singleplayer · Puzzle

Portal
Shared: Puzzle · Puzzle Platformer · Singleplayer

There Is No Game: Wrong Dimension
Shared: Puzzle · Indie · Comedy

Firework
Shared: Puzzle · 2D · Indie

Bridge Constructor Portal
Shared: Puzzle · Simulation · Singleplayer

Gunpoint
Shared: Puzzle · 2D · Singleplayer

Poppy Playtime
Shared: Singleplayer · Puzzle · Free to Play

Defy Gravity Extended
Shared: Puzzle · Puzzle Platformer · 2D

Braid
Shared: Puzzle · Puzzle Platformer · 2D

Portal 2
Shared: Puzzle · Singleplayer · Puzzle Platformer

Mini Metro
Shared: Puzzle · Simulation · Singleplayer

Cyber Manhunt
Shared: Puzzle · Simulation · Singleplayer

Samsara Room
Shared: Puzzle · Indie · Singleplayer

The Escapists
Shared: Singleplayer · 2D · Simulation

Deponia
Shared: Puzzle · Singleplayer · Comedy

World of Goo
Shared: Puzzle · Singleplayer · 2D

Opus Magnum
Shared: Puzzle · Simulation · Singleplayer

Zup! 4
Shared: Puzzle · 2D · Indie

Baba Is You
Shared: Puzzle · Singleplayer · Indie

Game Dev Tycoon
Shared: Simulation · Singleplayer · 2D

Zup!
Shared: Puzzle · 2D · Indie

Zup! S
Shared: Puzzle · 2D · Singleplayer

Plants vs. Zombies GOTY Edition
Shared: Singleplayer · 2D · Comedy