Games like Transmission: Shortwave
Games like Transmission: Shortwave include Retrowave, Papers, Please, Old School Rally, Razortron 2000, and Slackers - Carts of Glory. We matched them by the tags players give Transmission: Shortwave on Steam (Simulation, Retro, 1990's, Driving, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Retrowave
Shared: Retro · Simulation · Casual

Papers, Please
Shared: Simulation · Singleplayer · Indie

Old School Rally
Shared: Retro · Driving · Simulation

Razortron 2000
Shared: Retro · Casual · Indie

Slackers - Carts of Glory
Shared: Simulation · Driving · Casual

Train Simulator Classic
Shared: Simulation · Singleplayer · Driving

Hypnospace Outlaw
Shared: Simulation · 1990's · Retro

American Truck Simulator
Shared: Simulation · Driving · Singleplayer

Drift86
Shared: Simulation · Casual · Singleplayer

Plague Inc: Evolved
Shared: Simulation · Singleplayer · Indie

Forza Horizon 6
Shared: Driving · Simulation · Arcade

Passpartout: The Starving Artist
Shared: Simulation · Casual · Singleplayer

Fernbus Simulator
Shared: Simulation · Driving · Singleplayer

Game Dev Tycoon
Shared: Simulation · Singleplayer · Casual

Need for Speed™ Unbound
Shared: Driving · Singleplayer · Simulation

Backyard Baseball '97
Shared: Casual · 1990's · Retro

Pinball FX
Shared: Retro · Simulation · 1990's

Slime Rancher 2
Shared: Singleplayer · Simulation · Colorful

Sparkle 2 Evo
Shared: Simulation · Casual · Singleplayer

OutDrive
Shared: Retro · Casual · Indie

BeamNG.drive
Shared: Simulation · Driving · Singleplayer

Slipstream
Shared: Driving · 1990's · Arcade

Euro Truck Simulator 2
Shared: Simulation · Driving · Atmospheric

Nubby's Number Factory
Shared: Singleplayer · Arcade · Retro