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F4Multiplayer · next release

Version 0.10.0

Every feature and bug fix planned for the next release of F4Multiplayer, the Fallout 4 co-op mod, and how far along each one is. Each goes through eight steps from queued to shipped; the yellow step is where it is now.

Updated 2026-10-28 21:05 UTC
8QueuedOrder placed7Looked intoPrep1BuiltIn the oven1ReviewedQuality check0Rig-testedTaste test1MergedBoxed0Long playtestOut for delivery85ShippedDelivered

Queued

8 itemsOn the list, not started.
BugP2
Frame gate: RemotePlayers::KeepOutOfFrame reads main-thread maps on the engine's seat thread
FeatureP2Part shipped in 0.9.0
Share the other factions' radiant quests and settlement attacks

Much of it shipped in 0.9.0; settlement attacks and quests with on-the-spot enemies remain each player's own.

BugP2
Stand-in gear: Equipment::Apply and SwitchIntoPowerArmor empty with console removeallitems then add in the same frame; if the console call runs later it may take the gear just given
BugP3
Clutter: copies keep creeping after a rest; a friend's blast and two grenades at once leave items apart
BugP3
Power armor return: with no fixed object loaded in the new spot's cell, the owner's frame falls back to the player's cell; a parked copy flashes at the old spot for 0.25 s when a waiting move lands
FeatureP3Part shipped in 0.9.0
See a friend raise their Pip-Boy and a marker when in a menu

The raised wrist and name tag shipped in 0.9.0; the icon above the head is still off by default.

FeatureP3
See a friend using a workbench

Asked for on 0.9.1; not started.

FeatureP3Part shipped in 0.9.0
Show how far away a friend is on their compass marker

Partly done: F10 shows each friend's distance and direction, but not on the marker itself.

Looked into

7 itemsInvestigated or designed: the cause or the plan is written down.
BugP2
Mines go off at once for the client, without the warning beep

Looked at: we won't change it without testing the mine timing in the game first.

FeatureP2Part shipped in 0.9.2
World traps shared: mines, tripwires, bear traps, grenade bouquets

Shipped in 0.9.2 and tested for most cases; picking up mines and a bear trap closing on a player weren't tested.

FeatureP3
A bundle of six small polish items

Looked into: a collection of small, low-priority leftovers rather than one bug. Not started.

BugP3
A one-off crash a few seconds after starting the game

Seen once and never again; the crash was inside the game's own startup code.

BugP3
A unique character spawned by console doesn't show for friends

Looked into: this is deliberate, so nothing to fix.

BugP3
Friends' faces look a bit narrower than in their own game

Looked into: the face data arrives complete, so we suspect one head-shaping value that isn't sent. Not fixed yet.

FeatureP4
A friend's helmet or Pip-Boy light should be a beam, not a glow

We know why it looks round and have a plan; not built yet.

Built

1 itemWritten, with tests, waiting for review.
FeatureP2
Show friends on the Pip-Boy world and local maps

Built and passing automatic checks; not yet tried in a real game.

Reviewed

1 itemPassed code review.
FeatureP3Blocked
See a friend's Pip-Boy and a marker when they are in a menu

Built but held up: the Pip-Boy model we hang on the friend's character doesn't show yet, so it stays off by default.

Merged

1 itemIn the next release's code. Before the release goes out, the whole of it is played for several hours straight on two games, to catch rare crashes and problems that only show up over a long session.
BugP1
Nexus report: a Mr Gutsy the joiner met on the road wasn't there for the host, nor the fight

Logging shipped in 0.10.0; waiting for a live report to name the cause

Shipped

85 itemsOut on GitHub and Nexus.
BugP0
Power armor loans: a lent kit is lost at every return, and the borrower can't get out after the owner loads or leaves

Merged; the owner keeps the kit, and the borrower gets out after a load

BugP0
Power armor loans: after loading a save made inside a borrowed frame, the borrower's game briefly shares its loaded lent copy as its own frame; the owner could borrow a copy holding their own lent pieces (possible dupe)

Merged

BugP0
Power armor loans: the borrower's frame copy loses the lent kit within 0.3 s of the lend, so a borrower wears an empty frame

Merged; a borrower wears the full lent kit

BugP1Part shipped in 0.9.0
'You cannot use this at this time' when entering power armor

Merged again: one cause fixed and the log now says why a frame is refused; the original case still not reproduced.

BugP1Part shipped in 0.9.0
A chest a friend emptied while away still holds items for you

Merged for the next release: a take from a far chest now waits for the chest; tested in two games.

BugP1
A friend's game loaded an older save than expected
BugP1Part shipped in 0.9.0
After dying and reloading, you often can't damage enemies

Merged for the next release; checked in two games, not every case could be set up.

BugP1Part shipped in 0.9.1 and 0.9.2
An enemy is hostile in one game, friendly in another, heals when shot

Merged for the next release; tested in two games.

BugP1Part shipped in 0.9.2
Codsworth's search for Shaun finished for one player, not the other

Merged for the next release; the Codsworth search itself not yet tried in two games.

BugP1Part shipped in 0.9.0 and 0.9.2
Doors and gates opened by scripts stay shut for friends (Vault 114)

Merged for the next release; script-locked doors tested in two games; Vault 114 itself not yet.

BugP1
Looting a corpse isn't shared with friends

Fixed in 0.9.0; weapons and armor on corpses stay per player on purpose.

BugP1Part shipped in 0.9.0
Molotov and fire damage moves who can hurt an enemy

Merged for the next release; Molotov fire itself not yet tried in a real game.

BugP1Part shipped in 0.9.1 and 0.9.2
One player can't damage wild enemies until the other has

Merged for the next release; tested in two games.

BugP1Part shipped in 0.9.2
Power armor frames duplicate and appear in odd places in Sanctuary

Merged for the next release: a 0.9.1 leftover frame now goes; tested in two games.

BugP1
Power armor loans: after a borrower gets out away from where the frame stood, their game keeps its copy at the old spot (an extra suit) and has none to borrow at the new spot for minutes

Merged; one suit where the borrower got out

BugP1
Pre-rc review fixes: combat, downing, NPC health
BugP1
Pre-rc review fixes: items and shared storage
BugP1
Pre-rc review fixes: power armor loans and frames

Merged

BugP1
Pre-rc review fixes: server and session
BugP1
Pre-rc review fixes: world sync, doors, menus
FeatureP1
Shared storage: one true copy of each home and settlement container

Built and tested on two real games, off by default behind bSharedStorage; a few stress cases wait for the long test.

BugP2
A constant clicking noise starts when someone joins or leaves

Merged: the log now names the source of repeated sounds; waiting for a report from a game that clicks.

BugP2
A dedicated server doesn't retry a failed session save

Merged for the next release; tested with the dedicated server and in the game.

BugP2
A downed friend isn't shown downed on your screen

Fixed in 0.9.0 and tested on two real games, in and out of power armor.

BugP2
A downed player is stood back up when downed in clutter

Fixed in 0.9.0: a downed player the game stands back up is put down again.

BugP2
A friend doesn't see the Prydwen arrive

Merged for the next release; checked in two games, the real flyover not yet.

BugP2
A friend in power armor slides along without walking

Fixed in 0.9.0 and tested on two real games.

BugP2
A friend's grenade or Molotov stays stuck in their hand

Merged for the next release; tested in two games.

BugP2Part shipped in 0.9.2
A friend's shots look aimed at you

Merged for the next release; tested in two games.

BugP2
A gift doesn't show in an open chest until you press a key

The rig test found the redraw held back by mistake; being fixed.

BugP2
A holstered weapon still shows on a friend

Merged for the next release; tested in two games.

BugP2Part shipped in 0.9.2
A legendary enemy in one game is a normal one in another

Merged for the next release: a copy's own heal no longer sticks; tested in two games.

BugP2
A new character gets back gifts the old one took

Fixed; checked in two games; waits on the chest redraw fix in the same change.

BugP2
After a revive you can be stuck sneaking

Merged for the next release; tested in two games.

BugP2
After a revive you can sink into the ground

Merged for the next release; tested in two games.

BugP2
After being helped up from going down while sneaking, the sneak key stops working

Merged for the next release; tested in two games.

FeatureP2
Alternate-start mods work in a session like the Vault 111 start

Fixed for the next release, but not yet tried with a real alternate-start mod; waiting for the long test.

BugP2
An enemy spawned in the host's game can't be taken over by the joiner

By design the host's game keeps its spawned enemies; hits always land. The log now says so; reviewed.

FeatureP2
Borrow a friend's parked power armor frame
BugP2
Can't move right after joining

Fixed for the next release; not tried in power armor or against a wall yet.

BugP2
Crashes taking from some containers and using terminals

Fixed in 0.7.3 and hardened in 0.9.0; no crash log came with the report, so we can't confirm it.

BugP2
Dogmeat looks like he is squatting on a joiner's screen

Fixed in 0.9.0; we haven't yet seen Dogmeat run in a real game to confirm it.

BugP2
Emptying a container clears everyone's own loot in it

Merged for the next release; tested in two games.

BugP2
Enemies that heal on every hit can't hurt the client

Merged for the next release: stuck damage ghosts come off; tested in two games.

BugP2
Enemy death animations play late for the client

Fixed for the next release; not yet tried with real shots.

BugP2Part shipped in 0.9.2
Friends appear out of power armor after the game was quit in it

Merged for the next release; tested in two games.

FeatureP2
Friends run at full speed while you're in VATS slow motion

Fixed in 0.9.0 and tested on two real games.

BugP2
Friends' lights stay dark in your game

A fix for the next release; not yet tried in a powered camp, so it still needs confirming.

BugP2
Friends' run, walk and jump animations lag

A change for the next release; we can't yet say how much it helps.

BugP2
Gates and objects with several scripts could be judged wrongly

Already fixed in the code that shipped in 0.9.2.

FeatureP2
Give a friend weapons and armor through a chest

Built behind the host setting bContainerGifts (off by default) and checked; the test on two real games is still to do.

BugP2
Heavily sculpted faces look warped on friends

Fixed for the next release; we couldn't test a face that large, so it still needs confirming.

FeatureP2Part shipped in 0.9.0
Host options to make being downed and revived harder

Shipped in 0.9.0; the next release also tells joiners the host's rules. Waiting for the long test.

BugP2
Knocked clutter ends in different places when friends stand by it

Much closer now; small leftovers tracked separately

BugP2
Leftover power armor frame copies pile up at one spot

Merged: no more leftover copies, and a player's own frames are kept; tested in two games.

FeatureP2
Log pointers and 3D state around the save-time respawn, to name the ref in an engine use-after-free
BugP2
Moved objects don't reach a friend who loads the area later

Merged for the next release; tested in two games, including a late joiner.

BugP2
NPCs walk or path oddly in a session

Merged for the next release; tested in two games, the 6-hour soak still to come.

FeatureP2
Objects you move by hand show up moved for your friend

Shipped in 0.9.0; the Junk Jet damage test in both directions is still to do.

BugP2
Picking plants isn't shared with friends

Fixed in 0.9.0, tested on two real games.

FeatureP2
Pip-Boy and menus that don't pause the game in a session

Not working yet: our first attempt was dropped. Groundwork for the next attempt is in the next release.

BugP2
Settlers can't be given jobs during a session

Probably fixed in 0.9.2; not yet tried in a real game.

BugP2Part shipped in 0.9.0
Some settlement pieces built in workshop mode don't show for a friend

Mostly fixed since 0.9.0, with more for the next release; waiting for the long test.

BugP2
The character fires when you click in another window

Fixed in 0.9.0 for alt-tabbing out of the game.

BugP2
The host sees joiners' movement jitter

Fixed in 0.9.0, which made friends' movement roughly two-thirds less uneven.

BugP2
The host's Dogmeat is invisible to a friend indoors

Fixed for the next release; tested with another companion, not yet with Dogmeat himself.

BugP2
The host's gun looks taken apart on a friend's screen

Fixed in 0.9.0; we still want a two-game test to confirm it.

FeatureP2Part shipped in 0.9.0
Tutorial hints off in a session, and menus that pause the game

Hints off since 0.9.0; the next release adds a hand-off so enemies don't freeze while someone is in a menu.

BugP2
Wiring to a friend's workshop copy damaged the power grid

Fixed in 0.9.0.

BugP3
A friend's Raider chest piece shows with the wrong mods

Fixed for the next release; a plain piece and power armor pieces weren't tested.

BugP3
A friend's hand looks empty while they wind up a grenade throw

Shown in the friend's hand since 0.9.0; we are still checking it looks right in real play.

BugP3
A knocked object that rolls on shows in the wrong place for a friend

Merged for the next release; tested with the friend away from the object.

BugP3
An extra power armor frame after saving while a companion steps out

Fixed for the next release; we couldn't test it with a companion in a frame.

BugP3
An opened chest briefly shows loot a friend already took

Merged for the next release; in testing the takes were already in before the chest was opened.

BugP3
Compare mods lists the HD texture pack as missing

Fixed for the next release; waiting for the long test before it ships.

FeatureP3
Downed players can crawl toward their friend

Built for the next release, experimental and off by default (bDownedCrawl); the crawl itself is untested.

BugP3
Explosions from enemies you can't see hit you (DLC you don't own)

Fixed for the next release; blasts thrown by enemies aren't tested yet.

BugP3
Friend markers and ping rings are missing on the power armor compass

Fixed in 0.9.0; not yet tested in a real game.

BugP3
Misleading storage messages in the log after shared storage settles

Merged for the next release; tested in two games.

BugP3
Objects a friend built flicker or look blurry

Fixed for the next release; waiting for the long test before it ships.

BugP3
Pre-save flush re-logs refs marked for deletion at every later save
FeatureP3Part shipped in 0.9.0
Show a friend's LooksMenu look on their character

Shipped in 0.9.0 but not yet tried with LooksMenu installed; the next release adds a save fix.

BugP3
Some explosions aren't shared, like gas canisters

A gas canister was shared in testing; logging now names anything that isn't

BugP3
The clap emote in power armor slides the view sideways

Fixed in 0.9.0: emotes are no longer played in power armor.

FeatureP3
Travel autosave: read bSaveOnTravel from the Prefs collection's bare key before the ini file