Mycopunk X11-B is a new high-difficulty region that arrives with the 1.0 release on Tuesday, October 20, 2026. It is a moon of New Atlas, which the developers call a moonlet, and its enemies are tankier and hit harder. Electromagnetic radiation storms periodically sweep across it and fizzle your abilities. Pigeons at Play says X11-B will be open to visitors at 1.0, but as of October 19, 2026, it has not published unlock requirements, rewards or a launch time.
Summary: Mycopunk X11-B
- Release: Mycopunk 1.0 launches October 20, 2026. The launch time is not announced.
- Region: X11-B is a moonlet of New Atlas and a high-difficulty area for your best builds.
- Enemies: they are tankier and deal more damage than in other regions.
- Hazard: electromagnetic radiation storms sweep across the moonlet and fizzle your abilities.
- Unlock: open to visitors at 1.0. The requirements are not announced.
- Cryo: four cryo upgrades are already in the game, and a Cryo Grenade arrives in 1.0.
- Price: $14.99 on Steam, with a planned increase for the full launch.
What Is Mycopunk X11-B?
Mycopunk is a co-op looter shooter from Pigeons at Play and Devolver Digital. Up to four players take on fungal enemies on the moon of New Atlas, building weapons through a grid-based upgrade system. X11-B is a new region that comes with the 1.0 update.
The developers explained it in a July devlog. New Atlas is itself a moon, so they needed a name for its moon, and they settled on moonlet. They describe X11-B as a high-difficulty area meant for your best builds, with tankier, harder-hitting enemies and periodic radiation storms.
In practice, that makes X11-B an endgame challenge, not a starter zone. The mission select screen already renders the moonlet as a separate object, which is how you will choose it. The studio says the region will be open to visitors at 1.0. You can read the original post in the official Mycopunk Steam news feed.
Release Date, Price and What 1.0 Brings
Mycopunk leaves Steam Early Access on October 20, 2026, according to the store page. Several outlets report the same date, and Metacritic lists the initial release as October 20, 2026.
| Detail | Status |
|---|---|
| 1.0 release date | Tuesday, October 20, 2026 |
| Launch time | Not announced |
| Platform | PC on Steam |
| Current price | $14.99 |
| Price at full launch | The Early Access FAQ says it will rise, with no figure given |
| Steam reviews | Very Positive, 91% of 3,034 English reviews |
The price note comes from the Early Access FAQ, which was written before the release date was fixed, so check the store page on launch day. According to MassivelyOP, 1.0 promises new guns, grenades, maps, modes and a new character, plus hats for characters. The developers also describe an in-game achievement system called Fulfillments, which rewards hats. For another recent co-op shooter, see our Helldivers 2 Update 7.2 guide.
How to Unlock X11-B and Find It
The only confirmed unlock detail is that X11-B opens to visitors at 1.0. The developers do not state a level, a threat tier or a quest requirement. Therefore, any guide that lists exact steps before launch is guessing.
Here is what we know about where to find it:
- Mission select screen: the moonlet appears there as a rendered object, per the July 10 devlog.
- Region count: the Early Access page lists 4 regions and 9 missions today, and X11-B joins them at 1.0.
- Threat levels: a recent patch note jokes that threat 8 “isn’t a thing (yet),” which suggests the lobby filter is ready for higher tiers. The studio has not tied that to X11-B.
Because the studio calls the region “meant for your best builds,” expect some form of progression gate, but that is our reading, not an announcement. We will update this guide once launch players confirm the requirement.
Electromagnetic Radiation Storms: What Is Confirmed and a Workaround
The official description is short. Electromagnetic radiation storms periodically sweep across the moonlet, fizzling your abilities. The studio gives no storm interval, duration, warning cue or list of affected abilities.
That leaves a practical question: what do you do while abilities fizzle? The advice below is reasoning from the description, not tested strategy.
- Lean on weapon damage. Weapons are not described as affected, so build enough raw damage that you can fight through a storm.
- Spend cooldowns before a storm, not during it. Once you learn the timing in your first run, use your big abilities early.
- Do not rely on one activated upgrade. If a single ability anchors your build, a storm can switch it off.
- Stay near teammates. A downed squad is harder to revive when abilities fizzle.
- Test on a lower threat first. Learn the storm rhythm before you push the hardest settings.
A community wiki also lists a separate Saxonite Storm modifier that lowers gravity. That is a different mission modifier, so do not mix it up with the X11-B storms.
X11-B Hazards and Rewards
Here is the confirmed list, followed by what remains unknown.
| Topic | What the developers say |
|---|---|
| Enemy durability | Tankier than elsewhere |
| Enemy damage | Higher than elsewhere |
| Environmental hazard | Periodic electromagnetic radiation storms |
| Effect of storms | Your abilities fizzle |
| Rewards | Not announced |
| Unique enemies or bosses | Not announced |
| Mission types | Not announced |
The studio has not said what X11-B pays out, so do not assume better loot or a new currency. The reward question matters because a harder region usually needs a reason to visit. Until Pigeons at Play publishes details, treat X11-B as a challenge with unknown payouts.
High-Difficulty Builds for 1.0
Mycopunk’s build system is deep. The Early Access page lists 4 characters, 12 weapons, 3 grenades and 587 upgrades, and the Steam description says you slot upgrades into a grid. You can focus on healing support, put a deflector shield on a chainsaw or even turn yourself into a bomb.
Because the studio has not published an X11-B build, the table below turns the official description into planning questions.
| Problem in X11-B | Planning question |
|---|---|
| Tankier enemies | Can your weapon sustain damage over a long fight? |
| Higher enemy damage | Do you have healing, shields or a revive plan? |
| Storms that fizzle abilities | Does your build still work with abilities offline? |
| Four-player co-op | Does your squad cover damage, support and crowd control? |
A balanced build should pass all four questions. Also, keep a spare upgrade setup ready, so you can swap between an ability-heavy build for normal regions and a weapon-first build for storms. Our advice here is general, and we will test specific builds after launch.
Best Cryo Abilities for X11-B
Cryo is the newest element, and it arrived in the August 25 Freeze & Fester update. Four special cryo upgrades are available now, and only one can be equipped at a time. The full power of cryo comes with a new Cryo Grenade in 1.0, which is not available yet.
First, here is how cryo works. When cryo is fully applied, a target becomes frozen and locked in place, and freezing specific enemy parts like guns pacifies them. A frozen target shatters after enough damage, takes a lot of damage and breaks free. Punching a frozen target usually shatters it instantly. Frozen players can still move, but much slower.
| Cryo upgrade | What it does | Fit for X11-B |
|---|---|---|
| Ice Cube | Hold Q to encase yourself in ice, gain damage resistance and heal on exit with a cryo explosion | Defense against tanky, hard-hitting enemies, but it is an ability |
| Permafrost Wave | Hold Q to send freezing spikes in every direction | Crowd control for groups |
| Splinter Virus | Hold Q to freeze nearby unfrozen targets and shatter frozen ones | Burst damage against tough enemies |
| Ice Skates | Hold Q to toggle faster, looser movement | Mobility, with less control |
The developers call these upgrades “like new abilities,” and every one is an activated effect. Storms fizzle abilities, so any cryo upgrade may fail during a storm. As a result, there is no single best pick that we can confirm. Our reasoning favors Splinter Virus for damage and Ice Cube for survival, but wait for launch data before you commit.
The ice mound that grants these upgrades spawns in the Swamp and Ice Floes, and the August update made it always appear in the Swamp. Collect your cryo upgrade there before you travel to X11-B.
Tips and Common Mistakes
- Trusting unlock guides before October 20. The studio only says the region opens at 1.0.
- Assuming storms hit weapons. The description names abilities.
- Relying on one activated upgrade. Storms can disable it.
- Skipping the Swamp. The cryo upgrades come from the ice mound there.
- Expecting better rewards. Nothing is announced yet.
- Waiting on price. The Early Access FAQ says the price will rise at full launch.
Conclusion
Mycopunk X11-B arrives with 1.0 on October 20, 2026 as a high-difficulty moonlet with tankier enemies and radiation storms that fizzle your abilities. The region is open to visitors at launch, but the unlock requirement and the rewards remain unannounced. Build for sustained weapon damage, collect your cryo upgrade early and check launch-day reports before you commit.
FAQs
When does Mycopunk X11-B release?
It arrives with the 1.0 update on October 20, 2026. The studio has not announced a launch time.
What is X11-B in Mycopunk?
It is a moon of New Atlas, called a moonlet, and a high-difficulty region meant for your best builds.
What do the radiation storms do?
Electromagnetic radiation storms periodically sweep across X11-B and fizzle your abilities.
How do I unlock X11-B?
The developers say it will be open to visitors at 1.0 and have not listed requirements.
What are the cryo upgrades?
Ice Cube, Permafrost Wave, Splinter Virus and Ice Skates. A Cryo Grenade arrives in 1.0.
How much does Mycopunk cost?
It costs $14.99 on Steam, and the Early Access FAQ says the price will rise for the full launch.
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