Technical Information

RCT1 File Formats

Locomotion File Formats

RCT2 File Formats

RCT3 File Formats

Other topics

TD4 File format

TP4 File format

SV4 File format

SC4 File format

csg1.dat File format

css0.dat File format

css1.dat File format

Game.cfg File format

Object dat File fornat

TD6 File format

SV6/SC6 File format

Object dat File fornat

TRK File format

DAT File format

OVL File format

FWD File format

FWR File format

PRF File format

Peep description file

RLE decode/encode

RCT file Checksums

Track pricing

Off site link:
Scenario Research Details

This is a trimmed copy of the original RollerCoaster Tycoon Technical Depot that retains only technical information.
The original content is copyrighted by James Hughes (aka DoctorJ), thus all credit for the information goes to him and numerous other contributors.
You can access an archived version of the original website here
Legal note: I'm not intending to perform copyright infringement. I've uploaded these pages to prevent the invaluable information contained within them from fading into obscurity.
Since the original website went down, as far as I am aware, there are no other websites containing technical information about Roller Coaster Tycoon.