OpenTTD - An open-source clone of the classic game ...
BeamNG.drive - BeamNG.
Transport Fever - Transport Fever is an Adventure-based, Management, Strategy, Economy, Sandbox, City-Building and Single-player video game developed by Urban Games and published by Gambitious Digital Entertainment.
Rigs of Rods - Rigs of Rods is a Physics-based, Puzzle, Driving and Single-player Simulation.
Transport Tycoon Deluxe - Transport Tycoon Deluxe is a Business Simulation developed by Chris Sawyer and published by MicroProse.
My Summer Car - My Summer Car is an Adventure-based, Open-World, Racing, Driving and Single-player video game developed and published by Amistech Games.