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OdinsUndercroft
A `Basement` alternative, a more castle-like private basement. Now with Deco and BuildKit pieces! Fixed compatibility for ComfyGizmo Mod!
| Date uploaded | 2 days ago |
| Version | 1.3.3 |
| Download link | OdinPlus-OdinsUndercroft-1.3.3.zip |
| Downloads | 399 |
| Dependency string | OdinPlus-OdinsUndercroft-1.3.3 |
This mod requires the following mods to function
denikson-BepInExPack_Valheim
BepInEx pack for Valheim. Preconfigured with the correct entry point for mods and preferred defaults for the community.
Preferred version: 5.4.2333README
OdinsUndercroft
by OdinPlus
🏛️ A private basement befitting a Viking lord, rather than some dirty hole in the ground.
About:
Build the entrance anywhere you like and step down into a fully enclosed stone undercroft that's yours to furnish.
Features:
- Buildable Dungeon/Undercroft with a full set of matching stone, iron, and bone decor pieces (found in the Undercroft tab of your Hammer).
- Three Interior Areas — a grand hall and two side rooms. Each can be toggled off in the config for a more compact build.
- Protection: Accidental demolition is prevented while anything is still built inside.
- Smart Placement: Range check stops you from placing an Undercroft too close to an existing one.
- Performance Optimized: Triggers, colliders, and water volumes that serve no purpose underground are culled.
Configuration:
Settings live in BepInEx/config/gravebear.odinsundercroft.cfg and can be edited while the game is running — changes apply immediately.
| Setting | Default | What it does |
|---|---|---|
| Max nested basements | 1 | How many Undercrofts may be built inside one another. |
| Enable Removal Check | true | Blocks demolishing an Undercroft that still has pieces built inside it. |
| Enable OU_Hall | true | Shows or hides the hallway. |
| Enable OU_Room_A | true | Shows or hides the first room. |
| Enable OU_Room_B | true | Shows or hides the second room. |
Install Notes:
The mod is required on both server and client for config sync to work with crafting requirements.
<b>Manual Install:</b><br>
1. Download the latest BepInEx release and install it per the author's instructions.<br>
2. Place the mod's folder inside <code>BepInEx/plugins/</code>.
CHANGELOG
Version 1.0.2 -
Release the Kraken!
Version 1.0.3 -
Now with even more Undercroft, additional rooms that can be filled with your creativity!
Version 1.0.4 -
Had to move the undercrofts to prevent some issues, I am sorry if you had builds in the previous version, you might be able to just avoid updating however in updating this fixes a few issues found.
Version 1.0.5 -
Added pieces to build menu, use them to customize your undercroft!
Version 1.0.6 -
Fixed Compatability issues.
Version 1.0.7 -
Fixed Compatability issues with Comfy Gizmo Rotation Mod
Version 1.0.8
Sorry I lied, this is the fix for Comfy Gizmo and ValheimRaft Compat.
Version 1.0.9
Sorry I lied, I wasnt able to fix compatability with ValheimRaft. So instead I fixed the crappy job I did on snap points for the walls and added a few more deco blocks for you!
Version 1.1.0
Texture Correction on hallway and forgot snappoint to OU_Stonebeam
Version 1.1.1
Fixed Scale of pieces to match vanillia scale. added stair piece (Sorry again about the piece alignment, when updating walls and doors may have to be reset but this is for the better to match scale).
Version 1.1.2
- Added piece restrictions - Odins_BuildSkull is now required when building Odins Undercroft build pieces outside of the Undercroft.
- This was by request to add simular mechanics to the build pieces.
- The inside of the undercroft allows full placement of the pieces.
- Added Large Stone Pillar.
Version 1.1.3
Fixed Server Sync, Fixed WearNTear missing children.
- notes about the Odins_Build_Skull, this can be set to restrict crafting of OdinsUndercroft pieces by changing it's crafting requirements to something like "SwordCheat". Pieces for Undercroft can then only be crafted inside of the undercroft. The Build Skull sort of works like a Stonecutter with area build restrictions by default.
Version 1.1.4
ModWish Request filled - "Add another size beam to fit the walls".
Version 1.1.5
- ModWish Request filled - "Remove Smoke Effect of Enviroment"
Version 1.1.7
Fixed roof - it will now act as a roof
Version 1.1.8
- Fixed missing circle projector NRE from placing skull, added a floor piece.
Version 1.1.9
- Added more floor pieces and roof pieces.
Version 1.1.10
- Updated PieceManager and ServerSync
Version 1.1.11
- Fixed patch for mistlands - thanks azumatt
Version 1.1.12
- Updated dependencies
Version 1.1.13
- Update for Valheim 0.216.9
Version 1.1.14
- Fix for connection bug.
Version 1.1.15
- Updated dependencies
Version 1.1.16
- Fucked things up, sorry
Version 1.1.17
- Fixed my fuckup
Version 1.1.18
- Updated internal dependancies.
Version 1.1.19
- Updated internal dependancies.
Version 1.1.20
- Updated internal dependancies.
Version 1.1.21
- Forgot to include updated DLL
Version 1.1.22
- Thanks Azumatt for helping to turn off some of the crypt effects!
Version 1.1.23
- Thanks Azumatt - updated piecemanager for BogWitch
Version 1.2.0
- Updated piecemanager
Version 1.2.1
- Moved to Bogwitch Rip, changed out floor mesh colliders for box colliders, fixed particle effects on Urn, fixed LOD of all UC prefabs.
Version 1.2.2
- corrected material shader on several pieces. fixed snap points
Version 1.2.3
- Increased build radious inside of Undercroft.
Version 1.2.4
- Decreased the height of the entrace trigger.
Version 1.2.5
- Updated graphics api support
Version 1.2.6
- Added Localization Support, Added config options to disable Hallway/Rooms if you wish, Added config option to disable the Prevent Removal Patch if needing to delete an Undercroft.
Version 1.2.7
Fixed smaller beam snap points
Version 1.2.8
- Added MiniCroft that is a 1 room Undercroft with a "cosmetic door" entrance.
- Removed Crypt sound effects
Version 1.2.9
- Had to recreate Minicroft to fix an issue preventing some pieces from being built inside.
- Fixed a number of duplicate LoD groups.
Version 1.3.0
- Updated internal refrences
Version 1.3.1
- Fixed localization string for Minicroft and Hanging Skeleton
Version 1.3.2
- Fixed: the Undercroft environment is now registered in EnvMan's interior building override list. Previously this only worked if another mod happened to register the same environment name.
- Basement environment is no longer registered twice when another mod has already added it, or after returning to the main menu.
- Added a fallback if the vanilla Crypt environment can't be found, instead of throwing and breaking weather for other mods.
- Harmony patches now apply before piece registration, so a single bad prefab can no longer leave the mod half-loaded.
- Each build piece registers independently; a failure is logged and skipped rather than aborting the rest.
- Registered the missing SFX_Trap_Destroyed prefab.
- Config reloads now re-apply Hall/Room A/Room B toggles to the prefab as well as placed Undercrofts, and log the real error on failure.
- Hardened placement and interior checks against null references during scene transitions.
- Placement transpiler now fails loudly if it can't find its target, instead of silently breaking building inside the Undercroft.
Version 1.3.3
- Updated Snappoint Locals

