There's another sale on for the Hyperdimension Neptunia games+ from Idea Factory, this time at Amazon. Slightly cheaper than I've seen before, I believe these are all Steam keys with maybe one exception. JRPG goodness, maybe. Deals are:

Megadimension Neptunia VII - £8.99 - cheapest by a couple of quid according to ITAD (where Amazon.co.uk is still unlisted).

Hyperdimension Neptunia Re;Birth 3 V Generation - £3.44 - only one that isn't clearly a Steam key, although the first review states it is. Might confirm this myself shortly.

Hyperdimension Neptunia Re;Birth 2 Sisters Generation - £3.44

Hyperdimension Neptunia Re;Birth 1 - £3.44

Fairy Fencer F Advent Dark Force - £4.49 - cheaper than both Steam and Bundle Stars' recent deal, this one's dropped in price like a stone.

Fairy Fencer F (original game) - £2.29

Trillion: God of Destruction - £2.29 - the only one muggins bought, for twice that of course.

Hyperdevotion Noire: Goddess Black Heart - £2.29 - same as recent Steam sale I think. Chibi Neptunia

Hyperdimension Neptunia U: Action Unleashed - £3.44 - Hack'n'slash Neptunia?

MegaTagmension Blanc + Neptune VS Zombies - £4.59

Amnesia: Memories - £2.29 - Don't know this one

Monster Monpiece - £2.24 - Wish no-one else really knew I knew what this one was about

DLC and deluxe content is on sale too, but nothing spectacular that I could tell, mostly matching or above the sale price floor.