to be honest, this is the first i've heard of the kickstarter. i would have backed it had i known, but i guess the updates got lost among all the other posts in my feed. just another potential thing to consider
I know itchio has a mass email function, but I don't think it works on downloads of free games. Hmmm... I wonder how one would go about reaching those with very active feeds? Something to think about for sure.
