Heretek is an expansion pack for the critically acclaimed tactical turn-based game Warhammer 40,000: Mechanicus. Opening an entirely new storyline, Heretek reveals the dark underside of the Adeptus Mechanicus faction like never before. Brand new narrative events have again been hand-crafted by Ben Counter, allowing players to discover what caused the civil unrest in The Caestus Metalican during his Silva Tenebris campaign. Face a chillingly familiar foe, a cohort of heretic tech-priests who have changed their beliefs and abandoned the name of the Omnissiah. Can you, Magos Dominus Faustinius, handle an attack on the Necrons while corrupted from within?

Functions:
New Discipline to Use: Unlock Xenarite. A discipline that specializes in the use of xenotech, a largely forbidden practice for those who follow the Omnissiah! As well as all new improvements to customize the look of your tech-priest.
5 New Missions: Experience five new missions based on the Ark Mechanicus, each with a new delivery system for storytelling. The choice you make will affect the battle for this mission.
New Unlockable Weapons: Customized xeno weapons unlock devastating possibilities, combined with support tech that unlocks new playstyles.
Two new command units: Sicarian Infiltrators and Rustmen are now available to unlock. Pass through the limbs of Necrons and Hereteks with Ruststalker's transonic blades, or take a stealth route with scouts and set up a surprise ambush.
New but Familiar Enemies: Face your fellow tech-priests in an internal conflict over Necron xenotech, while also holding back the Necron awakening.
New Mission Environment: Experience combat inside the Ark Mechanicus for the first time in Warhammer 40,000 history.



Key activation:

1. You need to download and install Steam http://steampowered.com/download/SteamInstall.msi (if not already installed)
2. Register a new account on Steam or log into an existing one.
3. Go to the "My games" section and select "Activate via Steam" and enter the key received immediately after payment.
4. After activation, the game will appear in the list of games and you can download it from Steam.