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HD2Runtime v0.31.3

A Mod for Helldivers 2
HD2Runtime akl_mod_preview_image
HD2Runtime requires BingusSharedLoader 18 or later

A modding runtime that maps many Helldivers 2 values into an easier and safer API for creating mods with much less manual reverse engineering and guesswork.

Join the HD2Runtime Discord
For support, development discussion, modding help, updates, and community projects


ABOUT PUBLIC MATCHMAKING
its enabled again. i apologies for any troubles the initial released had caused.

here be dragons

if you encounter crashes with this in public lobbies its highly likely to be some of the experimented features that REQUIRE everyone in the lobby to have runtime installed to work correctly and safely

GameGuard:
some people have reported the recent 0.30.0 releases of hd2r has caused gameguard to refuse to boot. this is likely due to the mouse scroll wheel hook and can be disabled in your mod loader
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Always Give Bingus Shared Loader Higher Load Priority Than HD2Runtime





Support Development

Enjoying HD2Runtime or ModBuilder? If you'd like to support continued development, you can support me on Ko-fi




Recommended Runtime Mods







Making a Mod with HD2Runtime

HD2Runtime is installed once and shared by mods that use it.

Creating a mod


Recommended Tool:
https://github.com/SkyeShade/HD2Runtime-ModBuilder/releases

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Runtime Modbuilder is a tool i made specifically to lower the barrier of entry to modding this game.

Warning:
Some features are still experimental, and a few values may not map perfectly yet.


Manual Option:


1. Download and extract HD2Runtime-ModTemplate-<version>.zip from the github release page
2. Open the extracted folder in Rider or another code editor
3. Edit hd2runtime.json
- Change the mod name
- Change the resource ID to something unique, for example:
mods/yourname/my_mod
- Set the required HD2Runtime version for the features you use
4. Edit src/addon.lua
5. Run build.cmd
6. Import the ZIP created in the build folder into Arsenal or your mod manager
7. Enable Bingus Shared Loader, HD2Runtime, and your mod, then deploy and restart the game

Very Basic example


1790594165038.png

expect is the vanilla value Runtime expects before writing. Copy it from the SDK capability metadata; don’t guess it.


This changes the Liberator Concussive fire rate from its expected vanilla value of 400 RPM to 1100 RPM.

How do I know what values I can edit?


Download the HD2Runtime SDK from the github release and look inside its capability files.

Useful files include:

PlayerWeaponAuthoringCapabilities.json -> primary and secondary weapons
SupportWeaponAuthoringCapabilities.json ->support weapons
StratagemAuthoringCapabilities.json -> stratagems and deployed entities
VehicleAuthoringCapabilities.json -> vehicles
BackpackAuthoringCapabilities.json -> backpacks
MagazineAttachmentCapabilities.json -> magazine attachments

These files tell you:

- supported object names
- editable fields
- vanilla/default values
- whether a field is writable
- whether the edit affects shared data
- whether special safety acknowledgement flags are required

The expect value should normally come from the published baseline in these files. Do not guess it.

HD2Runtime checks the expected value before writing. If the game updated, another mod changed the value, or the target no longer matches what Runtime expects, the write is rejected instead of blindly modifying memory.

Useful operations


hd2.patch(...) -> applies one guarded change.

hd2.ensure(...) -> keeps a change applied if the game later resets it.

hd2.transaction(...) -> changes several fields on the same object together.

hd2.plan(...) -> coordinates changes across multiple objects.

Logs


If your mod does not work, check:

%LOCALAPPDATA%\CowboyBingus\Helldivers2\Logs\

Useful files:

BingusSharedLoader.log
HD2Runtime.log

APPLIED means Runtime successfully changed the value.

ALREADY_DESIRED means the value was already what your mod requested.

Full developer guide


See the HD2Runtime GitHub documentation for target navigation, safety flags, vehicles, backpacks, magazine attachments, plans, transactions and troubleshooting.

Github Link: https://github.com/SkyeShade/HD2Runtime





Found a bug?
Bugs are inevitable in a project as large as HD2Runtime, especially while it is still in early development.

If you find a bug or incompatibility, please reach out to me or submit an issue report on GitHub so I can investigate it and, if possible, implement a fix.



Missing feature?

If you think HD2Runtime is missing a feature or you have an idea for a new addition, feel free to reach out to me here. Please avoid opening GitHub issues for feature requests unless the request is specifically related to an existing issue.



Credits
Bans, for the True Lasgun Beam Overhaul, whose LAS beam research led to HD2Runtime's beam features.
https://ayakamods.com/members/bans.388863/





[Disclaimers]

HD2Runtime does not support public matchmaking.

HD2Runtime is intended for private, friends only, invite only, and other controlled modded sessions where all participants have chosen to use mods.

Using HD2Runtime in public lobbies can and will lead to crashes depending on what mods are used alongside it. i cannot fix this but i will do my best

LLMs were used during the development of this mod.
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Uploaded by
SkyeShade
Downloads
12,013
Comments
265
Views
61,715
First release
Last update
Platform
PC 
Version
v0.31.3
Total Size
4 MB
Rating
4.81 star(s) 27 ratings

Uploaded by

  • 12,013
  • 61,715

Ratings

4.81 star(s) 27 ratings

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Latest updates

  1. HD2Runtime v0.31.3 - LAS-22 Shear (partially), Exosuit Ammo and Shield Relay Recharg

    Another hotfix built from player reports. - Custom stratagems with warbond carriers: picking a...
  2. HD2Runtime v0.31.2 - No More Stutter, Four Statuses per Hit and more

    A hotfix built from player reports. - No more stutter: custom stratagems no longer cause a...
  3. HD2Runtime v0.31.1 - Performance Graph, Every Language, Bug Holes and More Weapon Damage

    A smaller update built from player requests and the editor wish list. - Performance graph...

Yukamizi

Members
Members
Sep 29, 2026
14
1
thanks for reaching back. i will check and see if there are some incompatibilities i can fix
I just played a match against the Bots, and the game did not stutter at all in that match. However, the stuttering is always present when I play against the Terminids, even when they are not calling in reinforcements. Could this be related to the number of units on the field?
I am going to run another Terminid mission later to test this out. I will provide an update once I have more results.
 

Yukamizi

Members
Members
Sep 29, 2026
14
1
I just played a match against the Bots, and the game did not stutter at all in that match. However, the stuttering is always present when I play against the Terminids, even when they are not calling in reinforcements. Could this be related to the number of units on the field?
I am going to run another Terminid mission later to test this out. I will provide an update once I have more results.
Hi, quick update on the Terminid test. The performance was pretty good this time, except for occasional stuttering while moving. I'm using version 1.22 of the bone-moving armor.Here is the log content:
[HD2Runtime] event source game_state started
[HD2Runtime] HD2Runtime 0.30.3 initialized (API 1)
[HD2Runtime] event source health started
[HD2Runtime] event source stats started
[HD2Runtime] event source players started
[HD2Runtime] MATCHMAKING SAFETY NOTICE: public lobbies can cause issues or crashes due to mods; Friends Only / Invite Only is safest when playing with mods. HD2Runtime does not change the lobby or Quickplay.
 

DavidHogins

Members
Members
Sep 12, 2026
15
3
How do i remove the big notification when i host a match? Or all notifications for that matter
 

Dr.Orange

Members
Members
Sep 18, 2026
10
3
Thanks for your hard work bro, btw, when can we get the destruction event of the bug hole?
 

Solar Luven

Members
Members
Oct 1, 2026
4
0
why are most of the limbs named "Zones" while others are properly named?

and wheres the hellbomb damage?
 

Vhuz

Members
Members
Sep 10, 2026
150
69
Getting into bastion gun seat is not properly displaying the set Coaxial Ammo, more prevalent when a friend enters your gun seat before you enter, on your own spawned bastion (friend also using same mod and same stats)

Set Coaxial Rounds are 2500 @ 750RPM (RPM works)
Getting in your own tank is 2100 something
friend getting in your tank is 500+ Rounds

Sum'n is off! D:

Note: Maelstrom is working fine, it's only bastion behaving this way. Also, we don't see a missle and smoke editor yet for it.
 
Last edited:

zbh

Members
Members
Sep 28, 2026
1
0
Please forgive my ignorance. I downloaded this mod solely for compatibility with another mod, but I noticed that the game is loading many mod features that I didn't download. How can I disable or adjust these features
 

Nepheria

Members
Members
Sep 21, 2026
5
0
so whats the deets on this update? your blurb mentions potential crashes due to experimental features, a gameguard conflict with scroll wheel hook and somewhere people talking about performance drops, is it safe to update from .28.1 ? will i still be able to play with my friends?