Puppy Games Aren't Impressed With Linux Sales (UPDATED)

It seems Puppy Games the developers behind fun games like Revenge of the Titans have expressed their concern about Linux sales.

They took to twitter to say this:

LINUX GAMERS! To date we've made just **$12,000** from Linux games in total for all time for all four of our games! This will not do!

— Puppygames (@puppygames) September 8, 2014

Linux is a small, but growing market we know that, but some developers aren't in it for fun and only see the numbers. They said in another tweet that a factor of 10 would make it more attractive.
Personally I doubt any single developer has made a figure of $120,000 (factor of 10 on their lifetime Linux sales) from a Linux game alone yet, and hell the vast majority of indie games coming out probably won't make that in their entire lifetime.

They have four games and three employees to maintain, so I can understand where they are coming from, but with a market that's still small developers shouldn't expect too much from it yet.

UPDATE

@gamingonlinux just Steam over the last 2 years. We only otherwise sell through Humble these days but that's so little money it's irrelevant

— Puppygames (@puppygames) September 8, 2014

It seems they are only counting Steam, so their original tweet seems a little baiting to get a reaction and more sales. Not a bad thing to try to get more sales, but maybe they should actively engage with the Linux community like some other developers do?
Take it with a grain of salt too, as tweets are hard to get the message across and it's probably more friendly than it seems at first glance.

They aren't counting their own Humble Weekly Bundle which actually gave them revenue from Linux gamers at a mark around $14,000 (not counting charity) which is more than Steam, so they actually made a fair bit more from Linux than they have mentioned it seems.
They confirmed in a comment later it's around the $8,000 mark. That nearly doubled the figure in their original tweet.

They were in a Humble Bundle as well which they aren't counting, and to quote someone from reddit on the matter:

QuoteI'm curious what the breakdown by platforms was from them in the Humble Bundles. Based on this site HiB2 made $361214.76 from Linux users.

Assuming that all of them gave half to charity (leaving $180607.38) and split the non-charitable potion evenly 12 way between the 5 HiB2 games, the 6 HiB games that got pulled in and the tip for Wolfire, they should have gotten $15050.

I would also be interested to know how much they say they got from that Humble Bundle. I am pretty sure they used to do direct sales at one point too, so again a fair bit they don't seem to be counting.

Puppy Games have noted they aren't about to stop supporting Linux, but they see it as unprofitable:

@shadowrabbit64 @fdgonthier we've supported Linux for 11 years, not about to stop now. Just remarking that it is incredibly unprofitable

Puppygames (@puppygames) September 9, 2014

What do you make of all this? It's interesting to see.

If you want to support them consider buying their games on Steam. Looks like they could do with some more love from Linux gamers don't you think?