OpenTTD, the open source implementation of Transport Tycoon Deluxe, has been released in version 15.3.

OpenTTD 15.3

2026-04-04
Posted by 2TallTyler

It’s April, time for a new OpenTTD version?

Sort of. We’re hard at work on features for OpenTTD 16, but in the meantime we’ve fixed a few bugs including a multiplayer desync triggered by train crashes.

Fixes incude:

Don’t desync multiplayer clients when a train crashes
When a helicopter runs out of fuel near the map edge, crash it within the map instead of the void (which crashes the whole game)
Improve appearance of toolbars and main menu images/text with some non-default base sets such as aBase, biggui, and original TTD

Full changelog: https://cdn.openttd.org/openttd-releases/15.3/changelog.md
Downloads: https://www.openttd.org/downloads/openttd-releases/latest.html