Serious Digital Edition
Purchase the Serious Digital Edition and receive the following extras in addition to the standard Serious Sam 3 BFE copy.

Classic versions Serious Sam: First and Second Encounter (giftable if you already own them on Steam)
Exclusive Making-Of Serious Sam 3: BFE Video
Timed Exclusive Brett Sanderson Headless Kamikaze Multiplayer Character
Timed Exclusive DLC: Sniper Scope for AS-24 "Devastator" Weapon
Complete Collection of High-Res Serious Sam 3: BFE Trailers and Game Videos
Official Sound Track Composed by Damjan Mravunac and Undercode
Digital Artbook, High-Res Posters and Box Art


Minimum:

OS: Windows XP 32-bit (with service pack 2 or 3)
Processor: Dual-core from Intel or AMD at 2.0 GHz
Memory: 1GB
Graphics: nVidia GeForce 7800/7900/8600 series, ATI/AMD Radeon HD2600/3600 or 1800/X1900 series
DirectX®: 9.0c
Hard Drive: 4GB free hard drive space
Sound: DirectX9.0c Compatible Sound Card

Recommended:

OS: Windows 7 64-bit
Processor: Quad-core from Intel (i5/i7-series) or AMD (Phenom II) at 3.0 GHz
Memory: 4GB
Graphics: nVidia GeForce 480/580 GTX, ATI/AMD Radeon HD 5870/6970
DirectX®: 9.0c
Hard Drive: 4GB free hard drive space
Sound: DirectX9.0c Compatible Sound Card