OpenTTD

About

You run a transportation empire by building roads, railways, docks, and airports to move people and goods between cities and industries. OpenTTD lets you design large networks across massive procedurally generated maps, connecting urban centers with rural outposts using any mix of land, sea, or air routes. Manage schedules, vehicle maintenance, and cargo transfers while adapting to changing economic conditions and technological advancements over time. The game supports single player or co-op with friends, letting you collaborate on complex supply chains and infrastructure projects. With maps up to 4096 x 4096 tiles and hundreds of custom mods adding new vehicles and scenarios, the possibilities are nearly endless. Active development since 2004 keeps the experience fresh while staying true to its classic roots as a free and open-source strategy game.