Your selection of category has been mentioned, so
You've got a solid groove going here. It just feels incomplete. You need either another instrument, or a vocal (I see the Mansonesque nature here, and I really do dig it). Try distorted, whisper vocals, which are easy for anyone, and can be done well with even the cheapest of mics. You've got something here, so touch it up, take it back to the drawing board, and make it into a pro-sounding tune. It shouldn't take much, with what you've already got going!