Overall a very amusing concept, and looking forward to seeing how this turns out. Some aspects of the game treatment strayed towards explaining more of the story and less of the gameplay, so I still don't have 100% a clear idea of how specific aspects will work. As a result I don't have a huge amount of comment about the feasibility of the project, but I would just caution against straying too closely towards the style of vampire survivors given that a large amount of success in that game is the sheer number of enemies etc, which is difficult to do well without considerable work on performance/framerate etc.