I'm... Not sure most newer games work without graphic card
For example, Ren'Py 7.4+ drops support for SDL mode - so if you don't have at least an integrated graphic card, you're doomed.
Let alone Unity.
dmp files are probably raw dumps - They won't help you - and they probably won't help the dev either, because I don't think an Unity game dev knows how to read a "memory state dump". It pretty much tells how the game was when it crashed, and unless you're developing the engine as well, you won't even know what you're looking for. (And if you know the source code for both, the dump itself won't be useful either, as you likely know exactly what you're looking for).
Anyway, you should locate the crash log file (.log). I forgot if it is in AppData or Documents. It should have a "traceback", detailing what it was doing before it crashed, and that is enough in most cases. Which reminds me, I also could not run this game on my VM earlier, but it ran smoothly over Wine, so I gave up entirely because Wine is so much superior imao.
Dumps are only realistically relevant for "interminent crashes" (game crashes at random, without apparent reason) where traceback and crash logs amount to "Segmentation Fault" which... Shouldn't happen, ever.