Developer Turtle Rock Studios and publisher 2K Games have released a new content update for the hit co-op sci-fi shooter Evolve. The update includes two free maps that will be available first for Xbox One owners of the game before they are released for the PC and PlayStation 4 on April 30.

Here's what 2K Games says about the two free maps:

The Broken Hill Mine and Broken Hill Foundry maps introduce two totally unique environments: Mining caves below the planet's surface and a fully industrial setting that has you sprinting down factory corridors.

The update also includes a new monster for the hunters in Evolve to kill, called the Behemoth. It's free to download for folks who pre-ordered the game; everyone else can get the Behemoth for $15 through the Monster Expansion Pack. There's also four new Hunters: Torvald (Assault), Crow (Trapper), Slim (Medic), and Sunny (Support). They can be downloaded for $7.50 each or all four for $25 with the Hunting Season Pass.

Evolve also has a new, and free, Observer mode with this content update. 2K Games says:

We use thousands of dollars' worth of equipment to pull off a broadcast capturing all the action of an Evolve match from every perspective on our weekly livestream. Soon, you'll be in full control, able to do the same thing – just without the expensive equipment. All you'll need: a copy of the game, and a gamepad or mouse and keyboard.

Finally, there's a bunch of improvements, bug fixes and game balance changes in this update. You can check out the full, and lengthy, change log on the game's official website.

Source: 2K Games