How to play Warhammer 40K Space Marine 2 co-op multiplayer

Warhammer 40K Space Marine 2 offers full co-op through the main story as well as three-player co-op Operations. To access the feature, there are a few basic steps to complete—and we’ve outlined the process below.

Support from teammates is vital to success in Space Marine 2, where you face ambushes from enemies at every corner, and playing with friends is one of the best ways to enjoy the game. Like many other games, however, you need to unlock co-op in Space Marine 2.

We’ve got the details you need here, along with a step-by-step guide to inviting and joining friends.

How to invite friends in Warhammer 40K Space Marine 2

To unlock co-op in Warhammer 40K Space Marine 2, you need to complete the first level of the game. This tutorial level introduces you to the basic mechanics and attacks, before the game truly kicks off after a batch of cutscenes.

Space Marine 2 makes it clear when co-op has been unlocked by informing you that the option to manage your squad is available. When playing single-player, the spots are filled by two NPCs, but this is the point where you can now invite friends to your game. To do so, follow these steps:

1. Open the option to Edit Squad—either from the pause menu while during a mission, or by following the prompt in the top-right before a mission is selected.
2. Open the Invite Menu.
3. Take note of Your Invite Code and send it to friends.
4. Alternatively, you can use the standard social functions on your console or to invite a friend to your game.

How to join friends in Warhammer 40K Space Marine 2

The process to join friends in Space Marine 2 works similarly to inviting them, and you must complete the opening tutorial mission to unlock the function. Once you’ve done that, join friends by following these steps:

1. Open the Edit Squad menu—either from the pause menu during a mission, or following the prompt in the top-right if in the main hub.
2. Open the Invite Menu.
3. Look for the section that says Join The Squad and select the box.
4. Type in an invite code provided by your friend and hit Join.
5. Alternatively, follow the standard functions on your console or PC to accept an invite from a friend.