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Game · Simulation & management

OpenTTD

Open source simulation game based upon Transport Tycoon Deluxe.

  • Completely free
  • Windows, macOS and Linux
  • Open source
  • No account

Overview

OpenTTD is a simulation game, available on Windows, macOS and Linux. Related genres: management and building game.

Gameplay elements described in its GitHub repository: mod support.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Open source simulation game based upon Transport Tycoon Deluxe” — Flathub, 10 November 2026
  • “An open source simulator based on the classic game Transport Tycoon Deluxe.” — official website, 10 November 2026
  • “1.5) Add-on content / mods” — GitHub, 10 November 2026

At a glance

All of OpenTTD is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-2.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No account needed
  • Commercial use allowed

About

OpenTTD is an open source simulation game based upon the popular Microprose game "Transport Tycoon Deluxe", written by Chris Sawyer. It attempts to mimic the original game as closely as possible while extending it with new features.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Winget (Windows Package Manager) (credit card, account, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Homebrew (platforms) —
  • Facts collected from Wikidata (licence, platforms) —
  • Last technical check: 5 November 2026
  • Description from Flathub — AppStream (Flathub)

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