This was pretty fun! Always nice to see another unreal game. I liked the general idea of giving your customers the fitting item, although as it is right now you basically just had to wait for them to explicitly say what weapon type they need - maybe instead you could have had them say what kind of quest they are going on and then you have to determine what would be the fitting equipment to add a bit of challenge to that part.
I liked that you could also do something else with your money, but I think it would have been cool to have some influence on what happens. Maybe some kind of mini game, some way to directly influence the outcome of the fight, I am not sure what would fit best but I mostly waited for bets with a chance above 50% and avoided the others, but there was not much more strategy to it than that. The waiting times between customers also felt a bit long sometimes as there was not much to do in between.
It would have also probably added a bit to the mood if you had picked out a fitting font, as that stuck out from the rest of the game. Other than that I liked the general look of the game and I also think that the music fit very well. Keep it up, well done! :)