In the Humble Jumbo Bundle 2[www.humblebundle.com] you can pick up THE KING OF FIGHTERS XIII Steam Edition for the beat the average price. The bundle is available for the next 13 days.

Other games in the bundle are,

The Incredible Adventures of Van Helsing - Complete Pack
Deadlight
Galactic Civilizations II: Ultimate Edition

Terraria
Crusader Kings II +some DLC

Age of Empires Legacy Bundle

With the bundle you also get soundtracks for whichever games you get. More games will be added in the second week of the bundle.

The Mysterious Cities of Gold[en.wikipedia.org] the game is available from Groupees: Be Mine 14[groupees.com] for the next 14 days under the $5 minimum tier.

The Mysterious Cities of Gold

The other games you'd get at the tier are,
Meltdown
Little Big Adventure 2 (Steam key provided upon release on Steam)
Legacy! (Greenlight)
Betrayer
Whispering Willows
Consortium
+Bonuses as they unlock

Some games in the bundle are DRM free.

For the next 35 hours a number of Japanese games are on sale on Steam. You can view the sale's page at Japanese Indie Festival. Discounts range from 30-80% off. If you don't pickup what you want now the next time it is pretty much guaranteed to be on sale is during the Christmas Sale, perhaps at a deeper dicount.

For whatever reason Steam isn't promoting this on the store front.

If your looking for recommendations,
One Way Heroics
La-Mulana
War of the Human Tanks

If you have recommendations, leave them in the comments below.

For the next 5 days you can get the Humble Weekly Bundle: Japan Edition[www.humblebundle.com]. This bundle contains the following games under 3 price tiers,

Unholy Heights
One Way Heroics
GIGANTIC ARMY

Ys Origin
Mitsurugi Kamui Hikae
PixelJunk Shooter

Astebreed

All these games outside the bundle would cost you $67. Games are on Steam and DRM free through Humble.

For the next 9 days you can get 100% Orange Juice and 99 Spirits + Cage of Night (DLC) from the Groupees: Build a Be Mine[groupees.com] for $1.50 minimum.

100% Orange Juice:
100% Orange Juice is a goal-oriented boardgame played by OrangeJuice's all-star cast including characters from Acceleration of Suguri, Flying Red Barrel: A Diary of Little Aviator, Sora, and QP Shooting.

This is a world where dogs, people and machines fly through the air. In that world, a small patch of darkness was born. Infinitesimal at first, it gradually began to envelope everything...

A youth named Kai, led by the mysterious life form known as Marie Poppo, begins a journey that will span worlds. The black, bottomless darkness of desire slowly eats away at both Kai and the world itself...

Let Marie Poppo lead you into a mysterious world to play. Grab your deck of cards and let the games begin!

99 Spirits:
99 Spirits is an RPG/Puzzle game that revolves around the popular Japanese folklore of Tsukumogami, everyday objects coming alive on their 100th birthday.

Hanabusa is a young headstrong girl living in the Heian capital within medieval Japan. But when her mother is slain by evil spirits, her life turns into one of vengeance as she sets out to hunt and destroy the spirits.

During Hanabusa’s travels, she meets a white fox who turns out to be a servant of the mountain god. Hanabusa receives a special sword passed down from her mother, which gives her the ability to see the true forms of spirits to help slay them. Shortly after, a spirit claiming to be Hanabusa’s long-lost father, Hidetada, breaks her sword and leaves Hanabusa powerless and confused.

Now to mend her broken sword and learn the truth about her father, Hanabusa embarks on a journey to annihilate every last one of the evil spirits.