so i decided to actually play the original, not open, TTD
and wow, i didn't know so many things i expect to be part of the normal game were actually added by the #OpenTTD team
here are only some of the things you can't do in the original game:
- build rails over any slope that doesn't match the rail's direction (OpenTTD may partially raise a tile to match, TTD won't)
- build more than one "diagonal" rail piece at a time
- extend an already-built train station
- change the manager's face to a specific one, rather than a random male/female one
- have maps larger than 256x256




