Why Matr exists
Me and The Roads (Matr) is a response to many road enthusiasts (including me) looking for a good road network simulation game.
    SimCity, for example, offers trip-based traffic simulation, but you'll be frustrated by its limits to road-building. Your choices are two-lane streets and six-lane freeways. The freeways are always elevated, even when crossing open country or climbing a hill -- and a street can't cross under a freeway going diagonally! Furthermore, there are no signs and no road maps, for the highways you pave don't have numbers or names.
    Me and The Roads starts at the other end: a solid highway layout model. Matr doesn't yet simulate traffic like SimCity, nor does it provide the trees, buildings, and hills that make your created world more realistic. In return, you get real maps, highway logs, street names and route numbers, 3-D perspective views, and realistic road signs.
    As Matr improves, you'll get hilly terrain, freeways, interchanges, custom signs, and the ability to drive along and see everything at eye level. Fiscal and political constraints will come last, and they'll be optional, so you can restrict your challenges to engineering ones.

Matr history
Me and The Roads actually has a long genesis. Here are the previous versions:

About Java
Kurumi.com offers two other games (Signmaker and (Trippy Drive '71), both in Java.

People have asked about whether they will be ported to Windows, Macintosh, etc. to allow offline play and faster performance. Answer: no; porting to platform X or Y takes valuable time I'd rather spend learning and creating new stuff, and improving the content of the programs themselves. I've done GUI and graphics work in both MFC and MacOS; porting from Java to them would be primarily busywork.

I also have political motives for releasing Kurumi software in Java:

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