Anyone have any experience modding UE4 games?

[rusty_shackleford]

Seems like I might be able to fix (some?) parts of INSOMNIA: The Ark. I think.
I do have a lot of experience using UE4 itself, but I have no experience modding an already made UE4 game.

I think, however, I may be in luck as it seems the game may have been using blueprints instead of C++ for scripting. But are there decompilers for the blueprints/etc., for cooked assets? I already extracted the pak file.

[Xenich]

Maybe this? Not super familiar with UE4.

NM, second one doesn't support UE4. Sorry. Left them there just in case someone finds them useful.

► Show Spoiler

https://github.com/EliotVU/Unreal-Library (disregard this one, Its for package files only).

The Unreal library (UELib) provides you an API to read (parse/deserialize) the contents of Unreal Engine game package files such as .UDK, .UPK. Its main purpose is to decompile the UnrealScript byte-code to its original source-code.

It accomplishes this by reading the necessary Unreal data classes such as:

UObject, UField, UConst, UEnum, UProperty, UStruct, UFunction, UState,
UClass, UTextBuffer, UMetaData, UFont, USound, UPackage
Classes such as UStruct, UState, UClass, and UFunction contain the UnrealScript byte-code which we can deserialize in order to re-construct the byte-codes to its original UnrealScript source.

https://github.com/UE-Explorer/UE-Explorer (this one may, not sure entirely though).

[rusty_shackleford]

Found a useful list of tools for UE modding:
https://github.com/Buckminsterfullerene ... ding-Tools

[Xenich]

Nice!

[rusty_shackleford]

Guess I'll post whatever I find here and maybe merge it into a superpost eventually if I finish this.

Extracted key mappings:

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Code: Select all

+ActionMappings=(ActionName="Aiming",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=RightMouseButton)
+ActionMappings=(ActionName="Aiming_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="CameraControl",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Slash)
+ActionMappings=(ActionName="Cancel",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Escape)
+ActionMappings=(ActionName="Cancel_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="Crouch",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=C)
+ActionMappings=(ActionName="Crouch_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="DebugEnemySearch",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="DropItem",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Delete)
+ActionMappings=(ActionName="Help",bShift=False,bCtrl=True,bAlt=False,bCmd=False,Key=F1)
+ActionMappings=(ActionName="Hit",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=LeftMouseButton)
+ActionMappings=(ActionName="Inventory",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=I)
+ActionMappings=(ActionName="Inventory_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="Kick",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=F)
+ActionMappings=(ActionName="Kick_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="LookAround",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=MiddleMouseButton)
+ActionMappings=(ActionName="ManageTeam",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=K)
+ActionMappings=(ActionName="ManageTeam_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="Map",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=M)
+ActionMappings=(ActionName="Map_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="MouseClick",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=LeftMouseButton)
+ActionMappings=(ActionName="MouseClick_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="MouseControl",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Multiply)
+ActionMappings=(ActionName="MouseWheelM",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=MouseScrollUp)
+ActionMappings=(ActionName="MouseWheelP",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=MouseScrollDown)
+ActionMappings=(ActionName="Quests",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=J)
+ActionMappings=(ActionName="Quests_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="Reload",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=R)
+ActionMappings=(ActionName="Reload_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="RightMouseButton",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=RightMouseButton)
+ActionMappings=(ActionName="RightMouseButton_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="Roll",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=SpaceBar)
+ActionMappings=(ActionName="Roll_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="SelectNextItem",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=MouseScrollDown)
+ActionMappings=(ActionName="SelectPrevioutItem",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=MouseScrollUp)
+ActionMappings=(ActionName="ShowFPSStats",bShift=True,bCtrl=True,bAlt=False,bCmd=False,Key=F)
+ActionMappings=(ActionName="ShowItemNames",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=LeftAlt)
+ActionMappings=(ActionName="slot1",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=One)
+ActionMappings=(ActionName="slot1_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="slot10",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Zero)
+ActionMappings=(ActionName="slot2",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Two)
+ActionMappings=(ActionName="slot2_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="slot3",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Three)
+ActionMappings=(ActionName="slot3_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="slot4",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Four)
+ActionMappings=(ActionName="slot4_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="slot5",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Five)
+ActionMappings=(ActionName="slot5_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="slot6",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Six)
+ActionMappings=(ActionName="slot6_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="slot7",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Seven)
+ActionMappings=(ActionName="slot7_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="slot8",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Eight)
+ActionMappings=(ActionName="slot8_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="slot9",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Nine)
+ActionMappings=(ActionName="slot9_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="SpeedMultiplier",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=LeftShift)
+ActionMappings=(ActionName="SpeedMultiplier_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="SprintHit",bShift=True,bCtrl=False,bAlt=False,bCmd=False,Key=LeftMouseButton)
+ActionMappings=(ActionName="Stats",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=P)
+ActionMappings=(ActionName="Stats_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="SwitchAmmo",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=G)
+ActionMappings=(ActionName="SwitchAmmo_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="SwitchShootingMode",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=X)
+ActionMappings=(ActionName="SwitchWeaponPreset",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Q)
+ActionMappings=(ActionName="TacticalPause",bShift=False,bCtrl=True,bAlt=False,bCmd=False,Key=P)
+ActionMappings=(ActionName="TestButton",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=B)
+ActionMappings=(ActionName="Toggle GUI",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="ToggleCinematicCamera",bShift=True,bCtrl=True,bAlt=True,bCmd=False,Key=F10)
+ActionMappings=(ActionName="Use",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=E)
+ActionMappings=(ActionName="Use_add",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=None)
+ActionMappings=(ActionName="Wait",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Y)
+ActionMappings=(ActionName="Walk",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Backslash)
+ActionMappings=(ActionName="WorldOverview",bShift=True,bCtrl=True,bAlt=True,bCmd=False,Key=U)
+ActionMappings=(ActionName="Zoom",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Z)
+ActionMappings=(ActionName="Inventory",bShift=False,bCtrl=False,bAlt=False,bCmd=False,Key=Tab)
+ActionMappings=(ActionName="SaveGame",bShift=False,bCtrl=False,bAlt=True,bCmd=False,Key=H)
+ActionMappings=(ActionName="LoadGame",bShift=False,bCtrl=False,bAlt=True,bCmd=False,Key=J)
+AxisMappings=(AxisName="LookUp",Scale=-1.000000,Key=MouseY)
+AxisMappings=(AxisName="MoveForward",Scale=-1.000000,Key=S)
+AxisMappings=(AxisName="MoveForward",Scale=1.000000,Key=W)
+AxisMappings=(AxisName="MoveRight",Scale=-1.000000,Key=A)
+AxisMappings=(AxisName="MoveRight",Scale=1.000000,Key=D)
+AxisMappings=(AxisName="Turn",Scale=1.000000,Key=MouseX)
+AxisMappings=(AxisName="MoveForward_add",Scale=-1.000000,Key=Down)
+AxisMappings=(AxisName="MoveRight_add",Scale=-1.000000,Key=Left)
+AxisMappings=(AxisName="MoveForward_add",Scale=1.000000,Key=Up)
+AxisMappings=(AxisName="MoveRight_add",Scale=1.000000,Key=Right)

I can't be sure I can fix the bugged quest I want to fix ( https://insomnia.fandom.com/wiki/Collector ) but I can see some assets related to it. I'll have to dig deeper.

[rusty_shackleford]

I'm not sure if I can mod this, might actually have been done using C++
I'll dig around a bit more, but this is why I hate UE4/5.

[loregamer]

Yes, I made a few mods for Hogwarts Legacy. I gotta focus on irl stuff for a few days but I gotchu

[loregamer]

Alright hit me up whenever you're ready @rusty_shackleford. Prepare for a world of pain.