Have been playing OTTD for a few months now and I was wondering how to put together a City Name Set (eg. http://grfcrawler.tt-forums.net/index.p ... town+names. Is it basically just a text file listing all the names? I have searched both this forum and TTD wiki but can't find anything about this..
At the location of the link I quoted is a short newgrf tutorial. It doesn't handle town names, but the way these things work. Also the necessary tools are linked there. You might get an existing town name grf, decode that and put your names into it. Make sure the license allows so.
You should not decode GRFs for which you already have the PCX and NFO, unless you know what the result will be, and that the result will be what you want.