A disappointing but still fun First-Person Shooter.
What made Sin unique was its open world, highly interactive environment and the so-called Action Based Outcomes. For example, if you shoot down a billboard into the roof of a building below, it opens up a new entrance for the next level, otherwise, you'll have to shoot your way through the main entrance. Another example would be to turn a valve in one level, which floods an entire area in the next level, drowning a whole bunch of enemies.
Unfortunately, Sin Episodes: Emergence is a poor attempt to be Half-Life 2: Episode 3, you follow a scripted linear path, kicking ♥♥♥ with your female sidekick. It's fun, but not very inspired.
Additionally to the solo campaign, there is a survival mode, which is totally pointless since there's no leaderboards and you can't play in coop.
The SDK includes the level editor Hammer, but there's no option to create a mod (and therefore no source code is available).
Note that there won't ever be another Sin or Sin Episode. Also when you buy Sin Episodes: Emergence, you get the game Sin as well (except for buyers in Germany!). The steam version of Sin is censored (this include mainly nudity and drug references).
Posted: November 26th, 2013