Indie Royale's latest offering -- The Atomic Bundle -- is a bit of a mixed bag. For a paltry sum (that fluctuates over the course of the sale, but rarely makes it over £3), you'll get excellent scrolling shooter Humans Must Answer alongside legendary classic The Chaos Engine. As an Amiganaut, I must warn you, it has not aged well. At all. Still, it's slightly better than the rubbish Super Killer Hornet: Resurrection.
Anyway, here's the selection: Cube & Star: An Arbitrary Love, Fields of War, Humans Must Answer, Livalink, Super Killer Hornet: Resurrection and The Chaos Engine. Definitely a niche one, but excellent potential savings nonetheless.