Anyone familiar with
Salvation Prophecy? (It's not really a sale per se because it only released Monday, but 25% off "special offer.")
It bills itself as a strange mix of FPS/RPG/Adventure/Space Sim/Strategy. There's FPS in ground assault, RPG elements in terms of skilling up and upgrading your ship, adventure and space sim in exploring, and some strategy elements.
That's a lot of stuff and I've given a cursory look at the forums and it was surprisingly not very caustic, as is so often the case on steam forums. Still, I've glimpsed at a few legitimate concerns, such as "limited" art assets and variety, which could probably be attributed to it being an independent title rather than publisher-backed.
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Also, any opinions on Divinity: Dragon Commander? I like the idea of an RTS where your avatar can actively participate, rather than a disembodied finger that can actively poke at things from the nether. However, although Divinity 2: Ego Draconis had promise (think of a Bethesda/TES game where you can theoretically become a dragon yourself), its execution was absurdly lacking (very on-rails, areas were clearly demarcated into zones and glass walls abound), so I don't have high hopes for a polished game in Dragon Commander.