Any idea why it has more watchers than sales still to this day?
I'm not sure how watchers would correlate to sales. I haven't really kept an eye on that number. I'm fairly certain that's the case for NEO Scavenger as well, though.
Some things which might impact sales:
- Windows-only: I think a lot of Desura's users are on Linux (hence the open source client), and by not having a version for that platform, you could be missing out on potential sales. It might also suggest that some "watchers" are Linux users waiting for a port. E.g. franbelle's comment on your summary page.
- XNA: I suspect some users are put-off by having to install additional libraries, and may bail if that comes up in the demo. I realize there may not be much you can do about this now, but it may explain some fall-off.
- Marketing: How consistent have you been on marketing? At first blush, your Desura page looks sort of fire-and-forget. There's one news release since May 2013, so it may appear inactive to visitors. Plus, I'm assuming "watchers" get an alert when you post news, so if you're not posting news, they may not know to come back.
- Greenlight: I'm not too surprised that Greenlight didn't send much traffic to your Desura page. In my experience, links on the Greenlight page are more often missed than not. The sense I get is that for many Steam users, if it doesn't exist in Steam, then it doesn't exist period.
That said, you appear to have a solid product there. I'm struggling to break a rating of 8.9 on Desura, so your 9.8 is commendable. And the comments you've received on the Desura page are some pretty high praise.
If I had to guess, your issue is probably marketing. 8500 visitors isn't too shabby, but maybe they're the wrong visitors (e.g. Steam hold-outs, non-puzzle gamers, Linux/Mac users).
Desura
could be part of the issue, though I suspect those 8500 visitors wouldn't have come to the page at all if it was a foregone deal-breaker. Still, you could try other sales channels (personal site, IndieGameStand, etc.) to see.
Re: support, I'd agree it can be fairly spotty. The few times I've emailed Scott directly, he was very responsive. But forum tech support is something I'm not confident in.
Changing the installer shouldn't be that hard, though. The client-based MCF upload just asks you for a directory to package, so it doesn't care what's inside (AFAIK). And for stand-alone files, those too should be just a matter of uploading the new file (ZIP, EXE or whatever) you want to replace the old file.