DLC Features:
New Skirmish Trail - Challenge yourself with seven new single player missions in 'The Princess & The Pig' skirmish-based Crusader Trail. 
New AI Opponents - Two new AI Lords added to the new Crusader Trail, online Multiplayer and Skirmish mode. 
The Pig - Returning from the original Stronghold The Pig is a brutal and relentless attacker, launching sieges early on with high speed units. 
The Princess - A brand new character to the series, The Princess uses her power and wealth to overwhelm the player with high numbers of troops. 
Extra Achievements - Claim the title of master strategist with 10 new Steam achievements. 
Custom Shields - Choose from five new coat of arms designs for your in-game shield.

Recommended:
OS:
Windows® Vista/7/8 64-bit with latest service packs
Processor:
Intel® Core™ i5 or equivalent
Memory:
8 GB RAM
Graphics:
NVIDIA® GeForce® GTX 460 1GB or AMD Radeon™ HD 5830 1GB or better
DirectX:
Version 9.0c
Network:
Broadband Internet connection
Minimum:
OS:
Windows® XP/Vista/7/8 with latest service packs
Processor:
Intel® Core™2 Duo 2Ghz or equivalent
Memory:
2 GB RAM
Graphics:
NVIDIA® GeForce® 8800GT 512MB or AMD Radeon™ HD 2900XT 512MB or better
DirectX:
Version 9.0c
Network:
Broadband Internet connection