Since you mentioned "developing a feature," it’s worth noting that the developers (Teyon) actually added a massive after launch called Infiltrator Mode .

You are dropped into a map and must eliminate Resistance forces to find the location of a specific target.

Keep an eye on the Epic Games Store , which gives away free games weekly. While this specific title hasn't been featured yet, it is the only source for permanent, 100% free legal copies. Alternative Interpretations

It changes the gameplay from a survival-horror RPG to a power-fantasy shooter, and it was released as a free update for all owners of the game.

While this query often leads to unofficial or "cracked" sites, I can point you toward the to play the game and a feature that often makes it "free" for subscribers. Dominant Interpretation: Seeking Legitimate Free Access

Instead of playing as a human, you play as a T-800 series Terminator .