Sanctum 2, Coffee Stain Studio’s unique first person shooter/tower defense hybrid, is getting the third of its four planned DLC expansion packs, The Pursuit, on Steam today. The Pursuit picks up the story from where Ruins of Brightholme left off, new weapons, tower options, perks, and a slew of new features.

The new additions include four new maps, two new weapons (the grenade launcher and the drone launcher), Towers of Power (two new towers power-up the available defensive options.  The Friendship Laser fires a single-shot laser and will also channel laser power to neighboring Friendship Laser towers, amplifying damage against monsters, while the Mind Control Spire changes enemies into allies that attack other monsters for a few seconds) as well as significantly beefed up enemies.

The Pursuit is available for $3.99 on Steam, or for free to players who bought the $11.99 Season Pack. To celebrate its release, The Sanctum will be available for 75% off on Steam.

Anton Westberg, CEO of Coffee Stain Studios, stated that, “We had a lot of fun developing this segment of the Sanctum 2 storyline. With The Pursuit, we wanted to make it even more action oriented as players chase down an arch enemy. I think the thrilling hunt combined with the cool new options make this one of the more entertaining DLC updates.”

New weapons this time include the Grenade Launcher, which fires bouncing explosives and cluster grenades, and the Drone Launcher, which can either send drones to attack enemies or simply crash into them for explosion purposes. The two new towers include the Friendship Laser and Mind Control Spire, along with seven new perks including the Zeus Module. You’ll also come across tougher enemies including the Heavy Pup and flying Bliskeblaske which will transform depending on the amount of damage it’s taken. Finally, there will be four new maps.

Sanctum 2: The Pursuit will retail for $4.99 on PC, with a release date still pending.