A new Humble Bumble called "The Humble Double Fine Bundle" is up for sale. The bundle can be purchased for any price, and includes the following cross-platform (PC, Mac and Linux) content:
Games:
Costume Quest
Psychonauts
Stacking
Soundtracks:
Psychonauts Soundtrack
Psychonauts Score
If you pay more than the current average price (currently $8.14), you'll also receive the following content:
Game:
Soundtrack:
Finally, if you pay $35 or more, you'll receive a pre-order of Broken Age; and if you pay $70 or more, you'll receive a pre-order of Broken Age and a Humble Double Fine Bundle T-Shirt.

Amazon.com are offering free upgrades to the Limited Edition version of Metro: Last Light (PS3, Xbox 360 and PC) -- if you pre-order the game. To top that off, they're also including a $10 Amazon Instant Video Credit.
The Limited Edition version of Metro: Last Light includes the following extras:
Metro: Last Light releases May 14, 2013.
A variety of downloadable games are on sale in the Nintendo 3DS' eShop until May 9, 2013 at 9 AM PT. Here's a list of those games alone with the normal price for each title:
Art of Balance Touch! - $4.99 (normally $6.99)
3D Classics: Kirby's Adventure - $4.99 (normally $6.99)
Dillon's Rolling Western - $6.99 (normally $9.99)
Fluidity: Spin Cycle - $7.99 (normally $10.99)
Fun! Fun! Minigolf Touch! - $3.49 (normally $4.99)
Marvel Pinball 3D - $3.99 (normally $7.99)
Nano Assault EX - $9.99 (normally $14.99)
Pushmo - $4.99 (normally $6.99)
Tokyo Crash Mobs - $4.99 (normally $5.99)
Image Credit: Nintendo
The Windows PC version of Tomb Raider (2013) is on sale for $24.99 (50% off) on Green Man Gaming. This is the lowest price on record! Please note that the game requires a free Steam account to activate and play.
Tomb Raider (2013) currently holds a critic rating of 86 (out of 100), and a user rating of 8.5 (out of 10) on metacritic.com.
If you need help with the game, IGN has you covered with video walkthroughs, interactive maps, and various guides for the game.
Here's a video of VISO Games discussing the game:
Green Man Gaming are offering the downloadable Windows PC version of Two Worlds II for $4.99 (75% off); alternatively, you can currently trade-in your Green Man Gaming copy of the game for $2.
Two Worlds II is a lot better than the first game in the series... but don't expect an engaging storyline. Here's a trailer for that game:
It's worth noting that the Game of the Year edition of the first Two Worlds is on sale for $2.49 (75% off), but you can skip that title and go straight to Two Worlds II without missing out on much.
"Elder Scrolls" titles are on sale for up to 50% off on GameFly.com; notably, The Elder Scrolls V: Skyrim is on sale for under $30. Here's a list of the other deals:
The Elder Scrolls III: Morrowind Game of the Year Edition - $9.99 (50% off)
The Elder Scrolls IV: Oblivion Game of the Year Edition - $9.99 (50% off)
The Elder Scrolls IV: Oblivion Game of the Year Edition Deluxe - $12.49 (50% off)
The Elder Scrolls V: Skyrim - $29.99 (25% off)
The Elder Scrolls V: Skyrim - Hearthfire DLC - $2.49 (50% off)
The Elder Scrolls V: Skyrim - Dawnguard DLC - $9.99 (50% off)
The Elder Scrolls V: Skyrim - Dragonborn DLC - $9.99 (50% off)
The Elder Scrolls V: Skyrim and its DLC are the only games on that list that requires a free Steam account to activate and play.
PlayStation 3 3D Glasses is on sale for as low as $22.19 on Amazon.com. Here's the key features for this glasses:
Compatible with Active 3D TVs.
Exclusively supports SimulView technology.
Built-in rechargeable batteries that lasts up to 30 hours.
Dimensions: 3" (w) x 7-1/8" (h) x 2"(d).
A Micro-USB cable is included to charge your unit via the PS3 or PC.
Please note that SimulView is a two-player mode that requires a PlayStation 3D Display and a game that supports that mode. Here's a video demonstrating SimulView: