MultiplayerbeginnerUpdated: 10/21/2026

Mycopunk Lobby Filter: Multiplayer, Co-Op & 4-Player Matchmaking

Sort Mycopunk lobbies faster with the lobby filter — learn how multiplayer search works, what co-op options show up, and how to lock in a 4-player squad.

The 1.0 launch brought new players flooding into public lobbies, and the fastest way to skip the noise is learning how the Mycopunk lobby filter actually sorts results. Mycopunk is a 4-player co-op FPS where the SAXON corporation sends a squad of robot rejects to clean up the fungal mess on New Atlas, so every match you queue into has real impact on your Antimass and Strange Component grind. The filter is built directly into the multiplayer browser, and the difference between a random lobby and a curated run often comes down to a few toggles most players overlook. Below is exactly how the system works, what fields you can sort by, and how to lock in the four-player co-op experience the game was designed around.

What the Mycopunk Lobby Filter Actually Does

The Mycopunk lobby filter is the set of dropdowns and toggles at the top of the multiplayer browser that narrow down the list of open public sessions. Every row in the browser represents one host's mission, region, threat level, and current roster size, so filtering is essentially structured search across those fields. The browser loads when you select Multiplayer from the main menu and shows the host's mission type, threat, region, queued players, and ping alongside any user-set lobby name.

Because the game shipped 1.0 on 2026-10-20 and the player base is still climbing toward its all-time peak, lobbies refresh quickly but not instantly. Most public matches fill within two to four minutes during the evening window, so the filter exists to keep you from scrolling past full rooms or wrong-region matches every refresh. Players who treat the filter as a quality gate consistently land in balanced squads faster than players who simply hit Quick Join.

Filter Columns at a Glance

The browser exposes a handful of sortable columns and toggles. Knowing which column controls what saves a lot of trial and error, especially when you are trying to queue for a specific mission type at a high threat.

Filter FieldWhat It ControlsDefault State
Mission TypeIncursion, Escalation, Ouroboros, Oxythane Breach, etc.All
RegionGravity Farm, Moldy Tundra, Ice Floes, The Swamp, Desert, City, X11-BAll
Threat Level1 through 7All
Player Count1/4, 2/4, 3/4, 4/4 (filled)All
Full LobbiesWhether to show already-full roomsHidden
ModdedWhether to show lobbies running community modsHidden

Sorting by Player Count is the single fastest way to land in a fresh 4-player co-op session, because the browser puts the emptiest rooms at the top when ascending. Sorting by Threat Level descending is the cleanest path to endgame Antimass farming at Threat 7, where the roughly 60% Saxonite drop chance is most rewarding.

Why the Filter Matters at Launch

Mycopunk launched straight into Very Positive territory on Steam with 4825 reviews and 4261 positive ratings as of October 21, 2026, with about 1839 concurrent players on the charts. That is more than enough density to keep public lobbies populated, but the diversity of mission types and threat levels means the lobby list will surface whatever has a free slot, not necessarily where you wanted to be. The filter is the difference between a five-second search and a four-minute wait for the right match.

Players who ignore the filter typically end up bouncing between two or three wrong lobbies before settling. Players who use it report landing in the mission they wanted, at the threat they wanted, in their preferred region, on the first or second refresh.

Co-Op Modes the Filter Surfaces

The Mycopunk multiplayer experience is built around five co-op employees — Glider, Scrapper, Bruiser, Wrangler, and the 1.0 addition Mycologist — and the lobby browser reflects that. Each session has a roster of one to four players, and the mission type, region, and threat level all surface as filterable columns. If you are new to the game, the Mycopunk beginner guide covers the basics of which employee fits which playstyle before you start queuing.

Mission Types Available in Public Lobbies

Almost every mission category in the game can be hosted in a public lobby, though some are far more common than others. Incursion is the most frequently queued, partly because it unlocks at player level 13 and feeds Antimass Substrate runs, while Ouroboros is rarer because it is the roguelike mode that ends in Permadeath-tier stakes.

Mission TypeCommon at LaunchWhy Players Queue It
IncursionVery CommonAntimass Substrate farming
EscalationCommonMid-threat Strange Components
Oxythane BreachCommonNew region unlock progress
Ouroboros / Ouroboros BlitzModerateRoguelike challenge, 13-room Blitz variant
Paid Time OffModerateSide content, low pressure
Prized PossessionModerateBattery Barry rescue for cosmetics
Saxonite TransportLess CommonTargeted Saxonite farming
Planetary DefenseLess CommonDefend-the-point objective
Population ControlLess Common1.0 addition, enemy clear
Ground ZeroLess CommonHigh-difficulty Amalgamation focus
Amalgamation HuntLess CommonNamed boss encounter
Abomination AssaultLess CommonNamed boss encounter
Expedition AlphaRareUnlocks the Mycologist employee
The CouchRare1.0 mini special assignment

The Mycopunk mission browser in the lobby filter does not separate story missions from side content — all mission types show up in the same column — so if you specifically want to grind Antimass for Pattern Infusion at the HUB Pattern Infuser, set Mission Type to Incursion only. That single toggle eliminates roughly 70% of the listed rooms and pushes you to the right kind of squad.

Player Count and Squad Composition

The Player Count column is the cleanest signal of how soon a match will start. A 1/4 lobby needs three more players, a 4/4 lobby is full and will not let you join, and a 2/4 or 3/4 lobby is the sweet spot. The filter lets you hide 4/4 entirely so you never waste time hovering over a room you cannot enter.

Squad composition matters more than raw count, because the 1.0 mission design assumes role coverage. Most experienced players run one of each employee, but the browser does not currently surface roster composition as a filterable column. That is a limitation worth knowing: the only signal you get about squad makeup is the host's lobby name and a small role icon next to each joined player. If you need a Glider for vertical mobility on a City map, the fastest path is to filter by Mission Type, sort by Player Count ascending, and then read each open lobby's name.

Sorting and Search Inside the Multiplayer Browser

The Mycopunk lobby screen uses a standard column-based browser, with each header clickable to sort ascending or descending. Players who do not know the column order often sort by the wrong field, then complain that the filter "doesn't work." In practice, the sort order is: Lobby Name, Mission Type, Region, Threat, Player Count, Ping. Holding Click on any header cycles between ascending, descending, and unsorted.

GoalFirst SortSecond SortResult
Fastest MatchPlayer Count AscRegion = your regionEmptiest nearby lobbies first
Endgame AntimassMission Type = IncursionThreat DescHigh-threat Antimass runs only
Boss FarmingMission = Amalgamation HuntThreat DescBoss-only rooms, hardest first
Specific RegionRegion = XThreat DescAll rooms in that region
Friend's LobbyLobby Name = friend's nameNoneDirect text match

The Text Search box above the column headers is a separate tool from the filter dropdowns. It searches lobby names only, not mission type or region. If your friend named their lobby "IBANGIN," the Text Search will find it; if you only know their Steam name, you will need to use the Friends List or the Mycopunk friends-only lobby flow instead. The two systems are complementary, not redundant.

Modded Lobbies and Community Filters

The Modded toggle in the filter is one of the more misunderstood controls. Toggling it on shows lobbies running user-created mods, which on a freshly launched game mostly means cosmetic or quality-of-life tweaks. Toggling it off hides those rooms so the browser only shows vanilla 1.0 sessions. The game launched with a beta branch for early patches, and most mod authors push their updates against that branch, so toggling Modded on is also a way to see which lobbies are running pre-release code.

There is no in-lobby mod whitelist yet, so if a host's modded lobby crashes on load, your only option is to back out and re-filter. Players who queue into modded lobbies frequently suggest pinning a specific modder as a friend and joining their private room directly through Steam, since the public browser does not currently sort by mod author.

Building a 4-Player Co-Op Squad Through the Filter

Locking in a full four-player co-op run is the most common reason players open the Mycopunk lobby filter in the first place. The 1.0 mission design assumes four robots, and three-player squads regularly get shredded by Amalgamation waves on high-threat runs. The filter makes the difference between waiting four minutes for a balanced squad and waiting twelve minutes for whatever the Quick Join algorithm hands you.

Step-by-Step: Filling a 4-Player Lobby

  1. Open Multiplayer from the main menu to load the public lobby browser.

  2. Set Mission Type to the category you want to run (Incursion for Antimass, Amalgamation Hunt for bosses, Escalation for mid-threat Strange Components).

  3. Set Region to your preferred map (X11-B is the 1.0 high-difficulty region on the moonlet of New Atlas; its periodic electromagnetic storms disable abilities, so bring backup weapons).

  4. Set Threat Level to your squad's current ceiling. The game uses 1-7; Threat 8 is not a thing yet per the developer's 1.10.1 patch note.

  5. Set Player Count to show 1/4 and 2/4 only, hiding 3/4 and 4/4 so you only see rooms that still need bodies.

  6. Sort by Ping ascending so the closest server hosts the room.

  7. Hover a lobby, confirm the mission modifier is something your squad can handle, and Join.

Most squads fill in under three minutes when the filter is dialed in. If you have been waiting longer than five minutes, your filter is almost certainly too narrow — relax the Region or Mission Type toggle, not the Threat Level.

Your RoleBest MissionBest RegionBest Threat
Glider (Rocket Salvo, Wingsuit)Planetary Defense, CityCity, Ice Floes5-7
Scrapper (Grapple Pole, Jetpack)Amalgamation Hunt, CityCity, Desert5-7
Bruiser (Nose Dive, Shield Projector)Prized Possession, Ground ZeroAll regions4-7
Wrangler (Rocket Lasso, Air Dash)Incursion, EscalationGravity Farm, Swamp4-7
Mycologist (Sporelift, Fungal Skewer, Infection)Any, after Expedition Alpha rescueAll regions4-7

Lobby names are free text, so some squads use them to advertise what they need — for example "Bruiser wanted, 4/4". The developer has not published a dedicated group-finder tag, so Text Search is the only way to catch those labels. Text Search is worth using even when you are just looking for a full squad to roll with. For more on how the co-op experience scales across team size, the player count breakdown covers how voice chat, push-to-talk, and friends-only lobbies all interact with the same browser.

Advanced Filter Tactics and Common Mistakes

Once you have the basics down, the difference between a casual and a serious Mycopunk player is how they use the lobby filter in edge cases. Some of the most common pain points at launch — Mycopunk co op players report queuing into the wrong mission, the wrong threat, or the wrong region — come down to a handful of mistakes that are easy to avoid once you know what to look for.

Common Mistakes to Avoid

  • Leaving Full Lobbies toggled on. The browser shows 4/4 rooms at the bottom of the list and they will not let you join. Hiding them removes the temptation to hover and wait.

  • Sorting by Lobby Name alphabetically. New players assume alphabetical is the default; it is not. The default sort is by recency, which is what you usually want.

  • Forgetting the Modded toggle. If you are on the 1.0 stable build and a lobby keeps crashing on join, you are probably queuing into a beta-branch modded room. Toggle Modded off to skip them.

  • Filtering by Region when the host did not set one. Some hosts leave Region at "Any," which means the column will not match a filter set to a specific map. If a room is showing up in your filtered list with a blank region, that is why.

  • Ignoring Ping. The browser shows host ping in milliseconds, and a 200ms+ host will feel sluggish on reaction-heavy employees like Glider. Sort by Ping ascending whenever you have more than three viable lobbies to choose from.

Solo Play vs. Filtered Co-Op

Mycopunk is built as a 4-player co-op game, but the browser does include solo-friendly lobbies. Filtering Player Count to 1/4 only surfaces sessions where the host has explicitly allowed solo queueing, which is a small but useful subset. If you are wondering whether solo Mycopunk is viable long-term, the public lobbies guide goes into the details of how solo players fare against the Antimass grind, the Strange Component economy, and the 1.0 Ouroboros endgame.

The honest answer at launch is that solo play is possible but slower, because the Amalgamation's 30-second enrage timer and X11-B's electromagnetic storms both scale harshly against a single robot. Most solo players set Mission Type to Paid Time Off, Prized Possession, or Population Control for the calmest runs, then join a 4-player squad whenever they need Antimass or Strange Components for Pattern Infusion at the HUB.

Frequently Asked Questions

How do I open the Mycopunk lobby filter?

Select Multiplayer from the main menu to load the public lobby browser, then look for the dropdown toggles above the column headers. Mission Type, Region, Threat Level, and Player Count each have their own filter; sort by clicking any column header. The browser remembers your last filter selection between sessions, so you only need to set it once per play session.

What does the Mycopunk lobby filter do that Quick Join does not?

Quick Join throws you into the first open slot it finds, regardless of mission type, region, or threat. The lobby filter lets you constrain every one of those fields before you search, so you skip rooms you do not want and go straight to a match that fits your current goal — Antimass farming, boss hunting, or just a chill Paid Time Off run with friends.

Can I filter Mycopunk lobbies to show only 4-player co-op sessions?

Sort by Player Count descending to put the fullest rooms at the top, then join a 3/4 or 4/4 room. If you want to host a full squad yourself, set your own lobby to 4-player and the filter will surface it to anyone sorting by ascending player count, since empty rooms are listed first when ascending.

Is there a way to search for a friend's Mycopunk lobby by name?

Yes — the Text Search box above the column headers searches lobby names only. Type your friend's lobby name and the browser will narrow to that single result. If you do not know the lobby name, the Friends List will surface any session your Steam friends are currently in, including private rooms that the public filter does not show.

Does the Mycopunk lobby filter show modded sessions?

The Modded toggle controls whether modded lobbies appear in the list. The browser does not separate sessions by platform because the developer has not published crossplay between PC and PS5, so do not assume a lobby contains players from both platforms. There is no Xbox or Switch version, so any lobby you join will be on the platform you launched the game on.