Well, posted it on freegaming: https://www.reddit.com/r/FreeGaming/comments/3h5ol0/indiegogo_campaign_for_retux_a_new_libre/
Apparently I can't post it on linux_gaming now, though... how does this work? I'm pretty sure there's a way to "cross-post" the same thing to multiple sub-reddits, isn't there?
