Transport Tycoon Deluxe

Transport Tycoon Deluxe (DOS, 1995) has an open-source reimplementation, OpenTTD/OpenTTD, and 5 other public projects, including a full disassembly. An agent environment already wraps it.

Data checked 2026-10-12 · unbaked registry

Projects

OpenTTD

Reimplementation8,361 starspushed 2026-10-12custom licenserelease 15.3

OpenTTD is an open source simulation game based upon Transport Tycoon Deluxe

mature reimplementation (now standalone with OpenGFX)

OpenTTD-patches

Reimplementation801 starspushed 2026-10-12custom licenserelease jgrpp-0.73.4

OpenTTD - http://www.openttd.org/ - with additional patches

latest release jgrpp-0.73.3 (2026-09-16); latest release jgrpp-0.73.3, 2026-09-16; Quiver type: PC port

TTDPatch

DisassemblyNASM11 starspushed 2018-04-13GPL-2.0 license

The master TTDPatch repository

Historic GPL binary patcher for original TTD (assembly)

Agent OpenTTD Arena

Agent environmentMCP for agent-game, Squirrel reference AI, Google Maps heightmaps5 starspushed 2026-08-18MIT license

Connect any LLM to a live OpenTTD game via MCP. Real geography from Google Maps. Reference Squirrel AI inside the game. MIT.

2026-08

openttd-agentnew, unvetted

Agent environmentOpenTTD GameScript protocol (typed) + LLM agent harness1 starspushed 2026-09-23MIT license

Autonomous LLM agent playing OpenTTD: an RL harness with a typed Game-Script protocol, memory-evolution, and experiment guardrails

New (2026-09)

OpenTTD (DOS.Zone build)

ReimplementationOpenTTD web build config by caiiiycuk; hosted on DOS.Zone (js-dos pla…0 starspushed 2026-08-17MIT license

Config that used for OpenTTD servers on DOS.Zone

Playable on dos.zone

What you need

You need your own copy of the game: these projects ship code only.

Agent environments

More on DOS

GameMethodYearStarsLast push

DOSDoomSource releaseMatching decomp+8199320k2026-10-12 DOSChex QuestSource release199620k2024-05-24 DOSCommand & Conquer: Red AlertSource releaseReimplementation+3199618k2026-10-11 DOSCommand & ConquerSource releaseReimplementation+2199518k2026-10-12 DOSQuakeSource releaseMatching decomp+419966.1k2026-10-12 DOSSimCity 2000Static recompReimplementation+119935.3k2026-10-11 DOSHereticSource releaseReimplementation+119943.1k2026-10-12 DOSHexen: Beyond HereticSource releaseStatic recomp+219953.1k2026-09-29

Found via SubmitGame/awesome-decomp-games, quiverlauncher.com/apps/openttd-openttd-patches, kovan/openttd-mcp, dos.zone/open-ttd

GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.