I made a doom clone using vuforia technology. I got it to run on 25$ Walmart track phones and my artwork.
There is a lot more, including multiplayer and all the shareware doom levels, however they aren't built into the APK. Instead, this is just a test to see if it's worth my time to continue. To be frank, I'm too poor and homeless to keep continuing without getting something out of this.
Anyways, if I could get feedback I'd greatly appreciate it. Im not sure how much better it could be for free. It's already more extensive than original doom shareware, it just needs to be built into the APK.
Any feedback is appreciated.