Optional: CSS1.DAT and CSS2.DAT (sound effects).Note: this represents the needed files as of 10 January 2016. If you belong to the first group, you can now skip to How to retrieve. You can either do a full install of RCT2 and point OpenRCT2 to its files, or only extract the files you want in order to conserve disk space. This page describes which files you need and where to retrieve them. This page is a work in progress by Gymnasiast.Īs of 10 January 2016, OpenRCT2 needs some files from RCT2 in order to run.