Yes, entirely. OpenTTD is open-source under GPL-2.0 with no purchases, subscriptions or advertising. The free base graphics set means you no longer need the original Transport Tycoon Deluxe files.

Do I need to own Transport Tycoon Deluxe to play OpenTTD?

No. OpenTTD ships with its own free graphics, sound and music sets, so it is a complete standalone game. You can use the original files if you own them, but it is not required.

Is OpenTTD still being updated?

Yes. OpenTTD has been in continuous development since 2004 and continues to receive regular releases, making it one of the longest continuously maintained games in existence.

What is BaNaNaS in OpenTTD?

BaNaNaS is the official in-game content service. It lets you download vehicle sets, industry chains, AI opponents, scenarios, heightmaps and graphics replacements directly inside the game, from a very large community library.

Does OpenTTD have multiplayer?

Yes, supporting dozens of simultaneous players on public or private servers, either cooperating on one company or competing as rivals. Live server and player counts are shown on the OpenTTD servers page.

How is OpenTTD different from Cities: Skylines?

OpenTTD is about transport networks between existing towns; Cities: Skylines is about designing and zoning a city itself. If you enjoy the traffic and logistics part of Skylines most, OpenTTD goes far deeper on exactly that.

OpenTTD — Free Simulation

200 MB

Releases

GitHub Release7/12/2026

16.0-beta2

### 16.0-beta2 (2026-07-12) - Feature: Allow bridges over depots (#15836) - Feature: Increase maximum number of vehicles per type to 10,000 (#15810) - Feature: Add and remove whole classes to picker collections (#15808) - Feature: Station list can be filtered by name (#15772) - Change: Use "bridge ... too low" message for bridgeable objects (#15838) - Fix: Use meaningful tooltips for graph range toggle buttons (#15842) - Fix #15826: Exclude allow any/all options for AI companies (#15834) - Fix #7992: Fix for catenary road and tram catenary sprites not being drawn on bridges (#15811)

GitHub Release6/25/2026

16.0-beta1

### 16.0-beta1 (2026-06-25) - Feature: Add default road and tram selection (#15585) - Feature: Trains with an engine on the rear can drive backwards when reversing (#15379) - Feature: Add worldgen setting for average height of terrain (#14989) - Feature: Add text filter to dropdown lists (#14842) - Feature: User-defined collections of saved items in the picker window (#14813) - Feature: Configurable sign text colors in scenario editor (#14743) - Feature: Allow placing an area of 1x1 houses in scenario editor (#14708) - Feature: Scale cargo payment aging rate (#14635) - Feature: Supp

GitHub Release4/4/2026

15.3

### 15.3 (2026-04-04) - Fix: Conditional orders could require a maximum reliability over 100% (#15409) - Fix: Improve appearance of toolbars and main menu images/text with some non-default base sets (#15402) - Fix: [Script] IsBuildableRectangle for a 0x0 tile should return false (#15357) - Fix: Desync caused by train crashes (#15338) - Fix: Incorrect scroll bar capacity for train details window total cargo tab (#15329) - Fix #15310: Crash caused by a helicopter running out of fuel near map edge (#15311)

GitHub Release2/18/2026

15.2

### 15.2 (2026-02-18) - Fix: Crashed zeppelin not blocking runway (#15281) - Fix #15269: Crash when building drive-through stop on unowned one-way road (#15270) - Fix #15247: Crash when handling invalid sprite in OpenGL cursor sprite system (#15248) - Fix #15105: Czech townname generation causing crashes (#15231) - Fix: Incorrect ground type test when placing towns (#15217) - Fix: Town supplied cargo history incorrectly clamped to 16 bit values (#15183) - Fix #15085: Crash when GUI scale changes before video driver is fully initialised (#15175) - Fix: Articulated road vehicle followi

GitHub Release1/24/2026

15.1

### 15.1 (2026-01-24) This release contains critical security fixes awaiting a CVE ID. - Fix #15088: When building a new train, the refit button state may be incorrect (#15162) - Fix #15160: Incorrect company names displayed in load game window (#15161) - Fix #15153: Wrong tile used to get bridge reservation overlay (#15154) - Fix #15116: Old cargo/industry sets without cargo translation table broken (#15150) - Fix: Possible crash converting company liveries in older savegames/scenarios (#15148) - Fix: Allow infinite water to be (de)selected when loading heightmap (#15146) - Fix: T