Psyringe: GamersGate's Daily Deal is
Sword of the Stars: The Pit for 75% off (€2.50, £2.00, $??).
You get a DRM-free version as well as a Steam key.
The expansion (Mind Games) is not included, but I think it's still very good value, especially if you weren't sure yet if it's your cup of tea.
I seriously can see Swords of the Stars: The Pit becoming like Cognition where everyone and their dog own the base game, but nothing more.