hmm your stuff looks nice i think, maybe its just that ppl dont fiind them, yout need some kind of "trigger" which i for myself was joining many many bundles especially the ones which were for a "higher goal" which are called charity bundles.....
i mean you also got to have luck with the bundle as you can see the NO ICE bundle got viral and sold 7000 times so all my games where in 7000 libaries and ppl tend to try them out ...well i also dont make money with it or anything but at least ppl seemed to like my kill will game a bit :D
the point is maybe also that fps sshooters with old school feel seem to get overlooked quite often.....but i like your stuff