Games like Head Tracker
Games like Head Tracker include Assetto Corsa, OMSI 2: Steam Edition, Euro Truck Simulator, Microsoft Flight Simulator (2020) 40th Anniversary Edition, and DiRT Rally 2.0. We matched them by the tags players give Head Tracker on Steam (TrackIR, Utilities, Software, Video Production, and Hardware): closest matches first, and among equally close ones the better-known games.

Assetto Corsa
Shared: Driving · Automobile Sim · Simulation

OMSI 2: Steam Edition
Shared: Driving · TrackIR · Automobile Sim

Euro Truck Simulator
Shared: Driving · TrackIR · Automobile Sim

Microsoft Flight Simulator (2020) 40th Anniversary Edition
Shared: Flight · Simulation · Realistic

DiRT Rally 2.0
Shared: Driving · Automobile Sim · Simulation

Train Simulator Classic
Shared: Driving · TrackIR · Simulation

Homebrew - Patent Unknown
Shared: Utilities · Driving · Automobile Sim

IL-2 Sturmovik: Battle of Stalingrad
Shared: Flight · Simulation · TrackIR

Assetto Corsa EVO
Shared: Driving · Automobile Sim · Simulation

Tower! Simulator 3
Shared: Flight · Software · Transportation

iRacing
Shared: Driving · Automobile Sim · Simulation

PC Building Simulator
Shared: Immersive Sim · Simulation · Hardware

Home Design 3D
Shared: Immersive Sim · Utilities · Software

KovaaK's
Shared: Software · Simulation · Indie

IL-2 Sturmovik: Cliffs of Dover Blitz Edition
Shared: Flight · TrackIR · Simulation

IL-2 Sturmovik: 1946
Shared: Flight · TrackIR · Simulation

Aimlabs
Shared: Software · Simulation · Controller

Wings of Prey: Special Edition
Shared: TrackIR · Flight · Simulation

Desktop Kanojo
Shared: Software · Utilities · Simulation

Aerofly FS 2 Flight Simulator
Shared: Flight · Simulation · TrackIR

Lunar Flight
Shared: Flight · TrackIR · Simulation

Chill Pulse
Shared: Utilities · Simulation · Immersive Sim

Chill with You : Lo-Fi Story
Shared: Utilities · Immersive Sim · Indie

Take On Helicopters
Shared: TrackIR · Flight · Simulation