After you defeat Solus Wing in Risk of Rain 2: Alloyed Collective, it will drop an Encrypted Cerebellum. This is a very important item that you need to use if you want to take on the true final boss of the expansion. Here is what you can do with it.

Encrypted Cerebellum in Risk of Rain 2 Alloyed Collective

After finishing off Solus Wing, you’ll receive the Encrypted Cerebellum item. This is used in combination with a few possible items to create a necessary item required to access the Hidden Realm: Neural Sanctum, where you’ll take on Solus Heart.

Like the previous expansions, Alloyed Collective introduces several new skins for several survivors in Risk of Rain 2. Each skin is themed according to the new expansion, but is only available for the base characters.

As always, unlocking them is not a straightforward process. Here is how you can unlock each skin introduced in Risk of Rain 2: Alloyed Collective and what they look like.

Risk of Rain 2 Alloyed Collective has a traditional final boss, but also a secret true final boss, which you can face right after beating the Solus Wing. Since this is a secret, getting to it has a few key steps to follow, but here is how you can reach it. 

Reach the True Final Boss in Alloyed Collective – Solus Heart

After reaching and defeating the regular final boss of Risk of Rain 2: Alloyed Collective, Solus Wing, you need to take the portal through his eye to the Hidden Realm: Computational Exchange, where you can make an offering to a large Solus Unit.

Like the previous expansions, Alloyed Collective introduces a bunch of new challenges to take on. As always, these are somewhat vague and can take some time to figure out. If you’re struggling with the “Lost in Transit” challenge, here is what it means and how you can complete it.

Complete the Lost in Transit Challenge in Risk of Rain 2 Alloyed Collective

To complete the Lost in Transit challenge, you need to unlock the Drifter survivor in Risk of Rain 2: Alloyed Collective.

Drifter is one of the new characters available in Risk of Rain 2: Alloyed Collective, but unlike the Operator, she isn’t unlocked by default. Here is how you can unlock her and start playing with her in the Alloyed Collective.

Unlock the Drifter in Risk of Rain 2 Alloyed Collective

• To unlock the Drifter, you need to reach and beat the final boss of the new expansion, Solus Wing. This is a pretty tough fight, so don’t be afraid to start on Drizzle.
• After beating the Solus Wing, you’ll be allowed to explore what remains of Solutional Haunt. There will be a portal open (in the main eye of the Solus Wing), but you don’t need to enter it just yet.
• Instead, make your way to the top area using the zip lines, and you’ll find the remains of two Alloyed units called Solus Coffer on different platforms. Interacting with each of these will give you a Prison Matrix.

• Grabbing the Prison Matrix will spawn enemies, so be careful; you aren’t out of danger just yet.
• Now that you have both Prison Matrixes, head back down to the ground floor, where you can unlock the Vault using the first Prison Matrix.
• Then enter the Vault and use the second Prison Matrix to break the Drifter free.

That’s all you need to do, and she’ll be available as a playable character next time. This also completes the “Lost in Transit” challenge.

Risk of Rain 2: Alloyed Collective introduces a new final boss, and it’s one for the books. As usual, getting to this different final boss can be a bit confusing because the expansion has different routes to set it apart from the main game.

Here is how you can reach the final boss in Risk of Rain 2: Alloyed Collective.

Risk of Rain 2: Alloyed Collective is the latest expansion for the phenomenal roguelite, which introduces two new survivors, several stages, drone mechanics, and bosses for players to take on. It’s launching on PC, Xbox, and PlayStation consoles today.

If you want to know when Risk of Rain 2 Alloyed Collective launches in your region, here are the release dates, times, and a countdown timer to make the wait a little easier.

The highly anticipated expansion for Risk of Rain 2, Alloyed Collective, features two new survivors, six stages, and plenty of new items — and it finally has a release date. We won’t have to wait long to get our hands on it, either.

Risk of Rain 2 Alloyed Collective Release Date

Risk of Rain 2: Alloyed Collective is coming to PC, Xbox One, Xbox Series S|X, PS4, and PS5 on November 18, 2025.

With the release of the Seekers of the Storm expansion, there are now a total of seventeen survivors or playable characters in Risk of Rain 2. Each survivor is fairly unique and you can beat the main game with each one, but their effectiveness, ease of use, and overall strength vary quite a bit. Here is our ranking of the current roster of Risk of Rain 2 survivors, and how they rank in our described tiers.

Risk of Rain 2 Survivors Tier List

Hoppo Games and Gearbox Publishing have been updating Risk of Rain 2 since 2019. There are now sixteen characters that can be unlocked and chosen, including a secret character that is unlocked during a run when certain conditions are met.

Despite the mixed reception of the Seekers of the Storm expansion, Risk of Rain 2 remains one of the best rogue-lite action titles on the market. It has a wealth of content for players to sink their teeth into for hundreds of hours, and an evergrowing roster of unique survivors to unlock and wreak havoc with. It also supports cloud saves, but if you want to access your local progress and profiles, here is the Risk of Rain 2 save file location on PC.

Risk of Rain 2 Save File Location

The save files for Risk of Rain 2 are available in the following location on PC.