JGR's Patchpack

Separate OpenTTD build with extra signals, programming, and map tools. Installs beside vanilla, not as a NewGRF.

Simulation / Strategy · 2004 · ~200 MB · Open Source (GPL-2.0)

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That One Thing

Why JGR's Patchpack sticks with us

A tiny rail junction can grow into a continent-spanning machine whose every signal, timetable and bottleneck belongs to you.

What makes it different

Singleplayer
Multiplayer
NewGRF Support
Programmable Signals

About JGR's Patchpack

JGR's Patchpack is Jonathan Rennison's long-running fork of OpenTTD. It is a different executable you install next to vanilla OpenTTD, not a NewGRF, AI, or Game Script. Multiplayer requires every player on the same jgrpp version; vanilla clients cannot join a patchpack server.

The extra surface is large: programmable signals, more flexible stations, extra map sizes and height levels, cargo dest, improved logic for breakdowns and infrastructure, and a pile of smaller UI and construction tools the trunk game has not taken. Savegames are not a free round-trip with vanilla — treat it as its own game with OpenGFX/OpenSFX (or original TTD baseset files) the same way you would stock OpenTTD.

PlayBound installs the 64-bit Windows zip from JGRennison/OpenTTD-patches. macOS ships a universal dmg on the same tag; Linux has distro packages and a generic tarball. OpenGFX downloads on first run when no original graphics are present.

System requirements

Minimum Requirements

1 GHz CPU · 1 GB RAM · Any GPU · 500 MB storage

Recommended Requirements

2 GHz CPU · 4 GB RAM · Any GPU · 1 GB storage

Frequently Asked Questions

Can I load this from OpenTTD's BaNaNaS menu?

No. This is a separate OpenTTD binary. NewGRFs you already use (CZTR, av8, eGRVTS) still install through the patchpack's own content download once this build is running.

Will my vanilla save open?

Often one way, not back. Keep vanilla OpenTTD for trunk saves and play JGRPP in its own folder.