It's just my personal opinion, but i think it would save you a lot of time if you would ask everybody submit bots directly to the repo in PR's. There might be even minimal automated testing performed (to ensure it doesn't crash from syntax error, implements required methods and so on). This way you'll need to and gather it all together by hand, which might be a headache if many people participate (which i hope will be the case).
RE: The AI Contest #1: public goods problem