OpenTTD

Build rail, road, air and sea transport networks, then optimize how people and cargo move between towns and industries.

Platform: OpenTTD official project

How to find: Search the official OpenTTD official project website for OpenTTD.

Information checked 2026-10-11. Free through the project website. New Steam/GOG users may need a paid Transport Tycoon Deluxe bundle; do not infer Steam/GOG availability.

This is a game-information page, not a store or free-key giveaway. Search the named platform directly and confirm the current conditions.