TrainSim is an absolute blast in VR!

At the time of writing, however, VR mode is only half-functional. Fear not, however, as you can still complete trips, almost like in 2D. Not everything will be the same, however, the end result is still worth it in my opinion. I've tested these settings with my Oculus Rift S, an I7 4770K, and a GTX 1080, but your mileage may vary.

Firstly, you'd want to set certain things up in the game. In the settings menu, set up your VR camera controls. A useful layout can be Shift+Arrows for moving the camera in the 4 directions, Insert and Home to pan (turn) left-right, and Page Up - Page Down to lift or lower the camera. Also, memorize the essential keybindings, (q-a-z, Num 1-7), as you won't have a mouse in VR, you'll need to be able to operate those keys without looking.

Another thing you want to look at, is performance. While performance around the terminal stations is fine (compared to 2D mode) , once you get into the city, your framerates will drop significantly, which is very unpleasant in VR. This is something that all VR titles have to contend with, not just TramSim. Anyway, you'd probably want to lower your View Distance to the Minimum (the game will still look quite okay, it's not OMSI kind of view distance). You'd also probably want to set Anti-Aliasing to Medium (any lower is quite visible). Shadows and texture quality can also be lowered without much visual degradation.

Next, assuming you'd want to drive in timetable mode, load up your scenario in 2D mode, set your time up, and activate the timetable in the Pause menu. Make sure that you're ready to go in 1-2 minutes, as once you are in VR, you will not be able to advance time, and you probably don't want to start you simming session with sitting at the stop for 10 minutes. Once all is set, save it!

Next, start the game in VR mode, and load up you scenery! Once you've started in VR mode, you won't be able to switch to 2D (the V shortcut won't work properly - the menu will come back in normal size, however you won't be able to click on anything, and in about 10 seconds, you'll be back in VR mode automatically). Adjust the camera position (you'll probably have to do it, hence setting up your camera controls). Most functions you'll need are controllable from the keyboard, apart from maybe passenger compartment lighting, so you can drive away happily! Also, there will be no working external views, and the First Person view will likely be messed up. However, even in reality, you'd be sitting in the drivers' chair anyway. For me, the game in VR is so-so cool, that I'm willing to give those things up. The Pause menu is still accessible by the Esc key, if you need to pause, and you can resume the game with pressing Esc again. If you happen to have an accident (due to not-always-so-smart AI they sometimes still wander in front of you - perhaps it's a feature to mirror real life though), you won't be able to see the pop-up window jumping up. However, pressing the Tab key a couple of times (just keep it pressed for like a second, so the selection will jump onto the last menu button), press Enter, and the pop-up is gone, you can resume driving.

Once you're finished playing, hit Escape, press Tab 5 times (Back to Menu), press Enter. You'll be asked whether you want to leave the game - you won't be able to read it, but then again, press Tab around 10-15 times, this way the 'Yes' option will be selected, then Press Enter. Then another pop-up will come up, with your points, again, you won't be able to read it, however pressing the Tab key 10-15 times again will land you on the unseen OK button. Just press Enter again. This will teleport you back in the main menu - you might need to Alt-Tab in-and-out of the game for the menu to show up - it will still be scaled way too big, however you can now safely exit from the game with Alt-F4 (or Alt-Tab, then right-click Close from Windows). You won't be able to Save your game, however any points awarded during your run, will be added to your stats immediately, so you still acquire points even if you don't go back to the main menu, or just close the game in the middle of your session.

I really hope that one day VR mode will be fixed, and you'll be able to see the menus, but right now VR mode is too much fun to pass up because of the non-visible menus. If you lucky enough to have a VR headset, hopefully this guide will help you enjoying TramSim in VR.