This is still the best bus simulator. It is a good improvement on OMSI 1.
MAPS/VEHICLES: The Spandau map is much extended with a new chronology function where you can see the routes/fares and most importantly the Berlin reunification/fall of the Berlin wall between 1986 and 1994. Two maps are included the fictional test map Grundorf (one route, the 76) and Berlin Spandau (routes 92 (137), 5 (130) and also two night routes. Two new buses come with this game the articulated (bendy) bus MAN NG272 (GN92) and the MAN NL202 (EN92). The two double deckers from OMSI 1 are improved and the MAN SD202 has two new variants; the D90 and the D91. There are new AI cars including ambulances with working sirens. There is also much more trains in OMSI 2.
PERFORMANCE: As with OMSI 1, you will need a pretty good PC to run OMSI 2. FPS is improved from OMSI 1 but lag can be experienced frequently in busy areas of maps.
I have an Intel Core i3, 6GB RAM and 2GB graphics card. Here is my FPS on the Hamburg addon map.
Suburb areas: 30 - 60 FPS.
Inner City areas: 20 - 25 FPS.
City Centre areas: 12 - 20 FPS.
UI: The user interface is completely changed from OMSI 1. The new UI looks much smoother and is easier to use.
BUGS: When this game was first released it was almost unplayable. It had clearly been released too early, as there were very frequent bugs and crashes. At this stage (version 2.1, the game is a lot better and crashes are rare. I have played the Hamburg and Vienna maps for the past few days with no crashes. Unfortunately crashes do occasionally still occur and there are still some minor bugs, although these do not normally affect gameplay experience.
ADDONS/COMPATIBILITY: Many freeware and payware addons exist for OMSI 2. The OMSI 1 addons Vienna LU 200, Citybus O305 and Hamburg Day & Night have all been patched for OMSI 2. Most OMSI 1 buses work in OMSI 2, but the majority of maps will not work in OMSI 2 without adjustments. Many map creators have released new versions of their maps for OMSI 2. A huge range of mods, repaints, vehicles and maps are available on the OMSI forum and other OMSI related websites.
DRIVING EXPERIENCE/FUNCTIONS: OMSI unlike most (if not all) other bus sims recreates the bus functions and driving physics as close as possible. Over 90% of buttons are pressable and have a function. For example you can set the destination using the IBIS computer, spray the windscreen, adjust the heating (involves many switches, not just one button!), lights and door controls. The bus sounds are excellent. All have been recorded off the real-life buses. Particularly with the bendy bus, you can feel the weight of the bus you are driving. This is enhanced with a steering wheel.
GAME CONTROLLERS: Buses can be controlled with the mouse or keyboard, but for a much more realistic experience a steering wheel is the best. The best realism can be achieved in OMSI 2 with a 900 degree, force feedback steering wheel. The one often preferred is the Logitech G27, but as this is very expensive other good wheels include the Logitech Driving Force GT. TrackIR 6 can be used with this game for added realism of the camera views.
TUTORIALS/DOCUMENTATION: As well as a detailed manual, new to OMSI 2 are tutorials. I strongly recommend users who have not played OMSI 1 previously to do these tutorials as learning how to operate the buses can be tricky at first.
Overall this is an excellent bus simulator (now that most bugs are gone anyway). Remember if you purchased OMSI 1 you can get OMSI 2 at a discounted price at the publisher's website.