Hydra (updated)
Provides rich utilities for games and their scripting languages. Also includes some engine patches.
About this mod Machine translation
Provides rich utilities for games and their scripting languages. Also includes some engine patches.
Original address:
Prefix:
Address Library for F4SE Plugins：
Fallout 4 Script Extender (F4SE)：
Visual C++ Redistributable 2026：
The page format is a bit rough due to the new upload form.
Also, the nested spoiler feature is no longer supported for some reason. :(
feature
Supports Old Generation, Next Generation and Anniversary Editions
Based on Papyrus Common Library, but completely remade from scratch
Over 2800 features added to Papyrus
There are also unprecedented new script types such as hash maps, hash sets, mutually exclusive groups, 64-bit integers, and floating point numbers.
Contains multiple engine patches that greatly improve the performance of Papyrus
Editor ID recovery - now possible via script command, console
and the use of mods that require this functionality, such as base object exchangers and spell perk item dispensers
And all sorts of utility-based stuff
Engine patches included
Patches can be loaded ahead of time and linked to Papyrus scripts
Patches to speed up most native Papyrus functionality
Contains script
FAQ
Q: Why isn't this just an update to the Papyrus Common Library?
A: I decided to move this to another page because, while Hydra is similar in some ways, it has a number of fundamental differences from Papyrus that would make it incompatible with existing mods using the Papyrus Common Library.
Q: Can I use it with Papyrus Common Library?
Answer: Yes.
Q: Will this replace the Papyrus Common library?
A: To some extent, it does serve as a replacement, although mods that mark the Papyrus Common Library as required will still need to install it.
Comment
For users of the Baka framework, it is recommended to disable their editor ID patching in the settings file
For modders: If you encounter a compiler error that prevents arrays or structures from appearing in structures, install
This compiler patch
recommend
Addicol - also greatly improves the scripting performance of the game.
Better help functionality - allows searching by name via the console's help function, not just by edit ID
"Eden" - Another big script expansion
Install & use Install: follow the bundled instructions
- Unzip the archive from playbuff and read the bundled readme / instructions first.
- There is no universal mod manager for this game: some mods replace game files directly, some go into a game-specific Mods folder, and some need a game-specific community loader or tool first — follow the bundled readme.
- Place the files exactly as the readme says; mods with listed dependencies need those installed too.
- Launch the game to confirm it loaded; some games require enabling mods in settings or an in-game mod menu.
Install locations vary a lot between games and mods — the bundled readme is the most reliable guide.