Games like ThinkFast
Games like ThinkFast include BONEWORKS, Poly Bridge, Papers, Please, Surgeon Simulator, and Project Wingman. We matched them by the tags players give ThinkFast on Steam (Indie, Simulation, Minigames, Action, and Puzzle): closest matches first, and among equally close ones the better-known games.

BONEWORKS
Shared: VR · Action · Great Soundtrack

Poly Bridge
Shared: Simulation · Indie · Puzzle

Papers, Please
Shared: Indie · Simulation · Puzzle

Surgeon Simulator
Shared: Simulation · Indie · Funny

Project Wingman
Shared: Indie · Action · VR

Hollow Knight: Silksong
Shared: Indie · Difficult · Great Soundtrack

Hand Simulator
Shared: Simulation · VR · Funny

Pizza Tower
Shared: Indie · Great Soundtrack · Funny

Hotline Miami
Shared: Indie · Action · Great Soundtrack

Totally Accurate Battle Simulator
Shared: Simulation · Indie · Funny

Hollow Knight
Shared: Indie · Great Soundtrack · Difficult

Baba Is You
Shared: Indie · Puzzle · Difficult

The Escapists
Shared: Simulation · Indie · Action

Session: Skate Sim
Shared: Simulation · Indie · Action

Geometry Dash
Shared: Difficult · Great Soundtrack · Indie

Goat Simulator
Shared: Simulation · Indie · Funny

Hades
Shared: Indie · Action · Great Soundtrack

Opus Magnum
Shared: Indie · Simulation · Puzzle

Super Hexagon
Shared: Indie · Great Soundtrack · Difficult

Game Dev Tycoon
Shared: Simulation · Indie · Singleplayer

Poly Bridge 2
Shared: Simulation · Puzzle · Indie

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

I Expect You To Die
Shared: VR · Puzzle · Simulation

Thumper
Shared: Indie · Action · VR