This is the full OpenTTD engine compiled to WebAssembly — the same simulation, economy, vehicles and construction rules as the desktop game.

Getting started

1. Choose New Game on the title screen and generate a map.
2. Build two stations (rail, road, dock or airport) near an industry and a town.
3. Buy a vehicle in a depot, give it orders between the stations, and start it.
4. Watch cargo move and money arrive — then grow the network.

Mouse & keyboard

• Pan map: arrow keys, W A S D, right-drag, or edge scroll.
• Zoom: mouse wheel or the +/− buttons.
• Build: pick a tool from the toolbar, click or drag on the map.
• Bulldoze / remove: dynamite tool, or R with rail tools for removal.
• Cancel tool: Esc or Del closes windows.
• Console: ` (backquote).
• Save / load: floppy icons on the toolbar; saves persist in this browser.

Touch

• One finger: left-mouse actions — tap, build, drag selections.
• Two fingers: drag to pan the map, pinch to zoom.
• Press & hold: right-click (tool removal / info).

OpenTTD Browser Edition — the real OpenTTD engine (version 15.3) compiled to WebAssembly with Emscripten. Simulation, economy, vehicles, construction and time all run inside the compiled engine; this page only hosts presentation, input, audio and storage.

Open assets

• OpenTTD 15.3 — GPL-2.0 · github.com/OpenTTD/OpenTTD
• OpenGFX 8.0 graphics — GPL-2.0 · github.com/OpenTTD/OpenGFX
• OpenSFX 1.0.3 sounds — CC BY-SA 3.0 · github.com/OpenTTD/OpenSFX

Browser port changes

WASD pans the map alongside the arrow keys; a thin host provides chunked loading, IndexedDB save persistence, touch pan/zoom and zoom/pan/sync helpers wired into the real engine state. No proprietary Transport Tycoon data is used or required.

Full license texts and source pointers ship with this build in the licenses/ folder and SOURCES.md.