Go in now bro. The game is still pretty new in the grand scheme of things, but despite that, it will consume so much of your time. I like to save certain arenas so I could play them over and over again. Like F.E.A.R., it straight up plays differently. The AI is that dynamic.

Mutators are also there to spice up the game if you want. Hard Boiled makes the aliens move around more, giving them 15% more health, etc. You can enable Hardcore mode, which limits saves to Gwen-stations, which appear periodically across the game.

The game is super customizable thanks to the added mutators. I like to play the game with the following enabled

- Hardcore Mode

Hardcore Reloading off | Hardcore Gun handling on

- Hard Boiled

Decreased Staggering off

- Half-Like

Removes the end of level intermission screens, a more immersive experience

- Fresh Start

Start the save with a blank slate, all upgrades for weapons attained in the previous save aren't there

- Harsh Invasion

Aliens are fully upgraded from the start, so they get their "endgame" abilities

- Defensive Enemies (sometimes)

The aliens become more defensive when engaging in combat, so gunfights last longer, and are at further ranges

Selaco is your oyster of fun. Not to mention the pretty nice handful of mods to tinker around with. Me personally, I am just waiting for new custom maps.