On these pages you will find some information on Transport Tycoon Deluxe and the possible enhancements and extensions provided by OpenTTD, JGR's Patch Pack and TTDPatch. They introduce various rather complex new features, therefore I have written some guides about building realistic railway networks.
Highlights include:
railway networks for dummies
path based signalling for dummies
realism guide for Michael Blunck's DBSetXL
information about the GermanRV set
The descriptions for TTDPatch are kept mainly for historical purposes. There has not been any development for TTDPatch in many years, and almost all features are
also available in OpenTTD or JGR's Patch Pack.