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Our Simutrans site. You can find everything about Simutrans from here.

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Information & Announcements
Basic information about Simutrans and announcements of interest to the entire community. New members get started with the community here.


Please read the Forum Rules and Guidelines: they facilitate the operation of the forum and protect the community. Make sure you have read them before posting.

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Posts: 659
Topics: 106

Last post: July 31, 2026, 06:41:12 AM Periodic outages, July 3... by Isaac Eiland-Hall

Download Simutrans
Announcements of new Simutrans versions.

Posts: 65
Topics: 44

Last post: May 31, 2026, 07:23:07 AM Simutrans 124.5 by prissi

Community

Simutrans Help Center
  • Read the official on-line manual, which can help you play and extend the game.
  • Find a tutorial or search for the answer to a question somebody already asked.
  • Post here a new question and someone will be glad to answer.
Note: For questions about development of paksets, tools, resources and the Simutrans engine, please use the respective boards of the forum.

Posts: 12,182
Topics: 1,729

Last post: July 12, 2026, 06:01:42 PM Re: Tuturial by Yona-TYT

Game Servers
Do you like to play Simutrans online? Read and discuss here about network games and the listing of active network servers.

Posts: 6,074
Topics: 153

Last post: August 08, 2026, 09:24:53 PM New Public Server "The L... by DThunder518

Social & Contests
Have fun in the community! Participate to and vote on the Simutrans Monthly Screenshot Contest. Challenge yourself with new scenarios. Share your most successful maps and amazing stories!

Moderators: sdog, An_dz, Sylph (Leartin)

Posts: 5,087
Topics: 343

Last post: August 12, 2026, 11:42:51 AM Re: AI Plays Simutrans -... by Andarix

Simutrans Gaming Discussion
Discuss Simutrans features and exchange your gaming experience and strategy. You can also thank the Simutrans Team or suggest new ideas to further improve the game.

Posts: 6,276
Topics: 589

Last post: May 29, 2026, 05:09:23 AM Re: Where are the trams?... by Andarix

Sub-BoardsPraises

Community Discussion
Discuss community issues, the forum and the websites. Introduce yourself to the community here too.

Posts: 9,634
Topics: 933

Last post: Today at 05:38:23 PM Re: Tutorial Underground... by Isaac Eiland-Hall

Development

Extension Requests
Post here your ideas to extend the Simutrans engine (not the PakSets).

Posts: 10,466
Topics: 948

Last post: Today at 10:22:19 AM Re: Wish: Diagonal graph... by prissi

Bug Reports
Report unknown bugs of Simutrans engine here. Please, give relevant details.

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Posts: 5,952
Topics: 775

Last post: Yesterday at 05:10:48 PM Re: Assertion failure wh... by victor_18993

Patches & Projects
Code patches and bug fixes are discussed, developed, and released here.

Moderator: Dwachs

Posts: 26,502
Topics: 2,746

Last post: Today at 02:55:28 PM Re: Modernisation of the... by victor_18993

Scripting Scenarios and AI
Feature requests, bug reports & general help with the Simutrans scripting system.

Posts: 1,336
Topics: 158

Last post: July 01, 2026, 10:06:18 AM Re: need welt->get_activ... by makie

Technical Documentation
Documentation of the game engine, its source code, and help with compiling.

Posts: 2,659
Topics: 193

Last post: Today at 06:24:19 AM Re: Simutrans Squirrel 3... by Andarix

Translation and Help Texts
Discussions about translation, SimuTranslator and in-game help texts.

Posts: 1,530
Topics: 162

Last post: June 11, 2026, 11:49:24 AM Re: Do I have to use "\n... by prissi

Sub-BoardsSimuTranslator external website

PakSets and Customization

General Resources and Tools
Library and discussions about graphics, 3D modeling and sounds. And material to customize Simutrans (besides pakset add-ons): maps, skins, menus, citylists and tools.

Posts: 2,458
Topics: 271

Last post: July 19, 2026, 01:43:33 PM Re: Simutrans Blender Ki... by victor_18993

Pak64
Discussions, bug reports and new graphics for pak64.

Posts: 2,977
Topics: 294

Last post: June 10, 2026, 01:22:10 PM Oil in the 1920s by Giziar

Pak96.comic
Discussions about pak96.comic. Use child boards to post graphic bugs and to download and release add-ons and graphic resources.

Moderator: An_dz

Posts: 2,027
Topics: 148

Last post: August 10, 2026, 08:10:13 PM Re: Residential cityhous... by Václav

Pak128
Discussions about pak128. Use child boards to post graphic bugs and to download and release add-ons and graphic resources.

Moderators: VS, gauthier

Posts: 8,627
Topics: 682

Last post: April 12, 2026, 07:11:37 AM Re: New crossing for 180... by prissi

Pak128.Britain
Development board for pak128.Britain. Announcements, graphics, bug reports of this pakset are posted here.

Moderators: kierongreen, The Hood

Posts: 8,523
Topics: 590

Last post: April 03, 2025, 01:35:26 PM Re: Changing currency by prissi

Pak192.Comic
Development board for Pak192.Comic. Announcements, graphics, bug reports of this pakset are posted here.  

Moderators: Alex. Brose, Michael 'Cruzer', PappeTeeMaster, Flemmbrav, Sylph (Leartin)

Posts: 1,339
Topics: 117

Last post: August 15, 2026, 05:12:04 PM Re: New cityhouses by Václav

PAK128.German
Development board for Pak128.German. Announcements, graphics, bug reports of this pakset are posted here.

Moderator: pumuckl999

Posts: 866
Topics: 96

Last post: July 12, 2026, 07:10:14 PM New beta 2.5 available by makie

Other paksets
Discussions and development of other pakset projects.

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Topics: 160

Last post: September 21, 2025, 04:44:45 PM Re: pak48.bitlit by Nazalassa

Simutrans Extended

Simutrans-Extended official information and announcements
Information on how to download Simutrans-Extended and other such general information

Posts: 320
Topics: 16

Last post: April 22, 2025, 01:38:30 PM Re: Nightly development ... by jamespetts

Simutrans-Extended gameplay discussion
Discussions regarding gameplay and strategy for Simutrans-Extended. Please post discussions about features or development in the appropriate subforum rather than here.

Moderator: jamespetts

Posts: 4,133
Topics: 537

Last post: May 12, 2026, 09:36:56 AM Re: Can you help me with... by Huitsi

Simutrans-Extended screenshots and saved games
Upload links to interesting screenshots of Simutrans-Extended gameplay or interesting saved games from Simutrans-Extended here.

Anyone who wishes to keep a diary of a particular game should do so here: please keep to one thread per game.

Posts: 28
Topics: 5

Last post: July 03, 2021, 04:50:56 PM Re: Final save data of P... by OStockwood

Simutrans-Extended development
Discussions regarding development of Simutrans-Extended. Please use the top level board for general development discussion and code documentation - everything else should go into one of the specific subforums

Moderator: jamespetts

Posts: 18,438
Topics: 1,900

Last post: June 11, 2026, 01:21:19 PM Bug with replacing signa... by zook2

Simutrans-Extended paksets
Development board for Simutrans Extended Paksets.

Moderator: jamespetts

Posts: 6,929
Topics: 558

Last post: April 20, 2026, 09:00:27 PM Re: Narrow Gauge Tunnel by Matthew

Language boards

[CS]Česky (Czech)
V této sekci můžete volně používat češtinu (není­ nutno poskytovat anglický překlad)

Moderators: Sim, TommPa9

Posts: 10,420
Topics: 358

Last post: November 19, 2021, 12:24:59 PM Re: neviem by TommPa9

Sub-Boards[CS]Poradna [CS]Tvorba

[DE]Deutsch (German)
In diesem Bereich darf auf Deutsch geschrieben werden (keine Übersetzung ins Englische nötig)

Moderators: mip, hellmade

Posts: 784
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Last post: February 19, 2024, 04:48:03 PM Übersetzung Ampeln by Andarix

[ES]Español (Spanish)
Se pueden publicar comentarios en Español en este foro (no se requiere traducción al Inglés)

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Last post: July 17, 2026, 11:29:19 PM Re: Proyecto Metro de Ma... by victor_18993

[FR]Français (French)
Vous pouvez écrire en français ici (une traduction anglaise n'est pas nécessaire)

Moderators: Lmallet, gwalch

Posts: 6,885
Topics: 345

Last post: April 12, 2024, 01:55:18 PM Re: Matériel Français by MF67_G3059

[IT]Italiano (Italian)
Qui potete scrivere direttamente in Italiano (non è necessaria la traduzione in Inglese)

Moderator: Milko

Posts: 384
Topics: 84

Last post: June 01, 2025, 03:04:45 PM Re: Il Treno Ibrido by SusieNoia

[JA]日本語 (Japanese) external website
Access the Japanese Simutrans Forum from here

Redirects: 488,483

[NL]Nederlands (Dutch)
U kunt hier uw berichten in het Nederlands posten (geen Engelse vertaling nodig)

Moderators: wipi35, Combuijs

Posts: 623
Topics: 83

Last post: September 29, 2021, 07:34:20 PM Re: ns treinen by Lieven

[PT]Português (Portuguese)
Aqui você pode postar em português (nenhuma tradução para o inglês é requerida)

Moderators: IgorEliezer, An_dz

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Topics: 327

Last post: March 06, 2025, 09:30:46 PM Re: Servidor em Portugue... by FLN

[RU]Русский (Russian)
Тут говорят по-русски

Moderator: inkelyad

Posts: 127
Topics: 23

Last post: May 05, 2020, 11:21:26 AM Re: Проблема с русской л... by PATRUL63

[SV]Svenska (Swedish)

Moderator: Kristian

Posts: 32
Topics: 4

Last post: December 12, 2023, 06:56:59 AM Re: En liten sak... by jenniferhook12

[ZH]中文 (Chinese)

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Last post: September 15, 2025, 06:04:24 PM [山毛] 樞紐車站一覽 by Y1149362004

The International Simutrans Forum - Info Center

Recent posts

Message Author Board Date
Re: Tutorial Underground railways Isaac Eiland-Hall Forum Today at 05:38:23 PM
Re: Im fixed some minors bugs victor_18993 Simutrans Tutorial Today at 05:32:07 PM
Re: Modernisation of the Squirrel Script API victor_18993 Patches & Projects Today at 02:55:28 PM
Re: Modernisation of the Squirrel Script API Yona-TYT Patches & Projects Today at 02:02:21 PM
Re: Modernisation of the Squirrel Script API victor_18993 Patches & Projects Today at 11:00:52 AM
Re: Tutorial Underground railways Andarix Forum Today at 10:45:00 AM
Re: [PATCH] Vehicle-specific speed bonus parameters for pakset balancing maxim13 Patches & Projects Today at 10:38:32 AM
Re: Wish: Diagonal graphics for signals prissi Extension Requests Today at 10:22:19 AM
Re: Modernisation of the Squirrel Script API prissi Patches & Projects Today at 10:10:22 AM
Re: [PATCH] Vehicle-specific speed bonus parameters for pakset balancing prissi Patches & Projects Today at 10:09:23 AM
Re: Tutorial Underground railways wipi35 Forum Today at 07:52:46 AM
[PATCH] Vehicle-specific speed bonus parameters for pakset balancing maxim13 Patches & Projects Today at 07:24:50 AM
Re: Wish: Diagonal graphics for signals makie Extension Requests Today at 07:02:27 AM
Re: Simutrans Squirrel 3.2 — Script API migration, compatibility and developer refer Andarix Technical Documentation Today at 06:24:19 AM
Re: Simutrans Squirrel 3.2 — Script API migration, compatibility and developer refer victor_18993 Technical Documentation Today at 12:51:54 AM
Simutrans Squirrel 3.2 — Script API migration, compatibility and developer refer victor_18993 Technical Documentation Yesterday at 09:09:31 PM
Re: Wish: Diagonal graphics for signals prissi Extension Requests Yesterday at 08:13:57 PM
Re: Assertion failure when running test in debug mode victor_18993 Bug Reports Yesterday at 05:10:48 PM
Re: Wish: Diagonal graphics for signals makie Extension Requests Yesterday at 04:17:22 PM
Re: Modernisation of the Squirrel Script API victor_18993 Patches & Projects Yesterday at 04:12:44 PM
Re: Tutorial Underground railways wipi35 Forum Yesterday at 01:06:44 PM
Re: Script API: return planned way routes to scripts victor_18993 Patches & Projects Yesterday at 11:27:45 AM
Re: Script API: return planned way routes to scripts Andarix Patches & Projects Yesterday at 11:09:42 AM
Re: Tutorial Underground railways victor_18993 Forum Yesterday at 09:47:10 AM
Re: Tutorial Underground railways wipi35 Forum Yesterday at 09:35:53 AM
Re: Script API: return planned way routes to scripts victor_18993 Patches & Projects Yesterday at 08:43:32 AM
Re: Script API: return planned way routes to scripts Andarix Patches & Projects Yesterday at 07:00:15 AM
Assertion failure when running test in debug mode ceeac Bug Reports Yesterday at 05:01:20 AM
Re: Missing icons from the toolbar menu CarrotCroissant7 Bug Reports Yesterday at 01:44:34 AM
Re: Rust implements an LLM (AI) policy isidoro Randomness Lounge Yesterday at 01:29:22 AM
Re: Modernisation of the Squirrel Script API victor_18993 Patches & Projects August 15, 2026, 10:21:39 PM
Re: r11216 - moving objects prissi Bug Reports August 15, 2026, 07:50:53 PM
Re: Modernisation of the Squirrel Script API victor_18993 Patches & Projects August 15, 2026, 05:31:42 PM
Re: New cityhouses Václav Pak192.Comic August 15, 2026, 05:12:04 PM
Re: change icon size prissi Extension Requests August 15, 2026, 03:38:33 PM

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