About
OpenTTD is an open source simulation game based upon Transport Tycoon Deluxe. The website offers a stable release (15.3), a testing release (16.0-beta5), and nightly builds. The game is a project from DarkUK, and players can find help in the wiki, join the community, or discuss the game on the forums.
The most recent news covers OpenTTD 16.0-beta5, released on 2026-10-24. Its changes include extending the availability of the default Guru X2 helicopter in vanilla games, a redesigned industry cargo chain window, a fix for a network desync after moving a station sign, a fix for incorrect widget sizes after an automatic font change, and improved hidden cursor handling on Mac OS. Bugs can be reported through the bug tracker.
The website text does not describe the Mac app in detail. Its only Mac-specific mention is the improved hidden cursor handling in the 16.0-beta5 release.
What's new
All release notesHomebrew cask openttd 15.3 (sha256 c2ac22ab3ac9ac1e82a8d9029b7e4ab069e425904420076605d860e64460f579).