NVIDIA sent out a press release on a bundle they are offering for their NVIDIA Shield Android Gaming Tablet. The bundle will basically give you a bunch of freebies for just purchasing the 32GB or LTE Version of the tablet at the regular price of $399.99.
The fee stuff includes the SHIELD controller, SHIELD tablet cover, and 3 great games; Half-Life 2: Episode 1, Half-Life 2, and Portal. This offer is for a very limited time only as it ends tonight (3/31/2015) at 11:59PM PST.
Here's the NVIDIA link for more details: Store Tablet | SHIELD