is a first-person, 3D action game in which you investigate the secret source of the crime epidemic plaguing the city. Transport yourself into the crime-ridden 21st century, which is seething with mutating characters, and blood-curdling violence.
When Elexis Sinclair, the sexy CEO of SinTek Industries, begins injecting the streets of Freeport with a DNA-altering drug, it's time to reassess the laws of morality. This twisted bio-chemist plans to overtake the world with her army of genetically-engineered mutants.
You are Colonel John R. Blade, a special security forces commander, and now you must make Elexis Sinclaire pay for her sins.
SiN is based on a rich, character-driven story. Each unique mission is intricately connected and brings you closer to finding the truth.
Gameplay is influenced by your actions; there is no set path. Each time you play the game you will have a new experience. The choices you make influence the game's flow, and the way you reach your destinations.
The AI are reactive, and think about more than just killing. For example, if they take too much damage, they'll duck out and find a way to heal themselves, or if you make too much noise and the hordes will descend upon you.
SiN uses an enhanced version of id Software's Quake II engine.
Note: This is still a pre-release demo, and therefore may contain bugs.