This page documents information about a third-party game running on a non-Valve engine. This information is documented here because it has technical and/or historical relevance to Valve's engines.
SiN is the predecessor to SiN Episodes. A first person shooter developed by Ritual Entertainment, the game was a commercial failure at first due to competition with Half-Life and other games at the time, but was later sold decently. Since then, Nightdive Studios (the same studios that remastered Quake on the new Kex Engine) has took over the game and releasing it on Steam, along with major update as of today, entitled SiN: Gold. It is running on modified version of Quake II engine.
About this Game
When the CEO of SinTEK Industries begins injecting the streets with a DNA-altering drug, it's time to reassess the laws of morality. When the same twisted bio-chemist plans to overtake the world with her unholy army of genetically-engineered mutants, it's time to rewrite the golden rule.
You are Colonel John R. Blade, head of the most prominent private protection agency in Freeport. Now Elexis Sinclaire is waging her holy war against the security industry...and you along with it. You've made a religion out of fighting crime. Now you're going to make Elexis pay for her sins.