World of Subways is a nice game, though it has a few issues.
One, the voice announcements are horrible. How difficult would it have been to get someone who actually speaks English to record them? Two, some of the textures are reversed (ie., the route map inside the subway cars, some of the bi-level amtrak car textures, etc.). Three, what are bi-level amtrak transition cars doing on the NEC where they're never used? Why don't they have any engines? They're just sitting abandoned in Newark Penn Station and alongside the tracks. How difficult would it have been to make an amfleet model and an AE7 model to pull them? Four, the traffic doesn't move. Granted, this often happens in northern New Jersey, but it's strange to see a highway full of traffic and none of it is moving. Five, getting out of the cab anywhere but in the station drops you into a bottomless pit which forces you to exit the game. Six, what's up with those bogus PATH logos which look like O's (with no arrow on the bottom)? Didn't want to pay to license the real ones?
Of course, there's a lot they DID get right. First, PATH is a relatively small system with only 13 stations, excellent for modelling (in contrast, none of NY's subway lines have that few stations). It also has both above ground and underground portions, and some of the routes are as short as 4 stations (ie., Hoboken - WTC or WTC - JSQ), which is great for starting out or practicing. The stations look excellent. The subway cars quality-wise are graphically about the same level as the ones I've created for Trainz. The high detail version runs fine on my high-end computer (have to see how it works on the laptop).
Overall, I've had a lot of fun with it so far, though some things seem a little strange (you've got to turn on the AC before each run? It wants you to turn out the headlights at the stations? Does PATH actually do this, or is this just some strange German thing?). They include the PA2, PA3 and PA4 cars, which all look and drive pretty much the same. I think the old "K" cars or even older black cars would have made a nice change of pace, but then they'd need to include Hudson Terminal instead of WTC.
Technologically, there's no reason something similar couldn't be done with Trainz (just give me a nice budget and a good scripter), though their in-cab dynamic lighting is much better than Trainz brain-dead cab lighting. For a subway fan, it's probably a must-purchase.
ATH and I thought that it's very good. In high-res mode, the graphics are very good. Some trains run from 33rd Street to Hoboken, reverse direction, and run to Journal Square or Newark (?). What do the designation signs on those trains say? How do I simulate this route? Some curves are very sharp so you have to keep the speed of the train at 15 MPH or below.