This is the first scenario i've tried to make in years. It's a small map, 128x64, but hopefully still playable

. Attached is a screenie of the grfs required and ofcourse the scenario itself

! Note that the grfs showed in the screenshot is the required ones only. You can add your own trainsets/stations/roadvehicles/whatever of choice to it

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Edit: im aware of the white graphic glitches, and this is caused by the newterrain.grf. Removing it will fix the glitches, but it will also make the map IMO less pleasant to look at.