ImmortalPortals

Immortal Portals

A tiny Valheim mod: the two vanilla portals (wood and stone) become immune to all damage — monsters, players, fire, snow, ash and support collapse can no longer destroy them. The build hammer still removes them normally.

Localization: English / Simplified Chinese / Traditional Chinese

Features

• Both vanilla portals protected: portal_wood (Portal) and portal_stone (Stone portal).
• Immune to every damage path:
• monster and player attacks, projectiles, fire, AoE explosions;
• environmental wear: support collapse, Deep North heavy snow, Ashlands ash and lava, persistent events.
• Build hammer still works: removal uses a separate code path, so you can always dismantle your portal and get the materials back.
• Applies immediately to existing saves: no health changes, no save data touched.
• Modded portal variants (anything using the vanilla TeleportWorld component) are protected too — configurable.

How It Works

All damage to a buildable piece funnels into WearNTear.ApplyDamage (attack damage via RPC_Damage, environmental wear via UpdateWear). The mod Harmony-patches that single method and skips it for portals. Hammer removal goes through WearNTear.Remove → RPC_Remove → Destroy, which never touches ApplyDamage, so it keeps working.

Configuration

File: BepInEx/config/trigger.valheim.immortalportals.cfg (ConfigurationManager supported).

| Section | Key | Default | Description |

|---|---|---|---|

| General | Enabled | true | Master switch |

| General | ProtectWoodPortal | true | Protect the wooden portal (portal_wood) |

| General | ProtectStonePortal | true | Protect the stone portal (portal_stone) |

| General | ProtectOtherPortals | true | Protect other portals using the vanilla TeleportWorld component (modded variants) |

| General | DebugLog | false | Log blocked damage (troubleshooting) |

Installation

• Install BepInExPack for Valheim.
• Drop ImmortalPortals.dll into BepInEx/plugins/ImmortalPortals.

Multiplayer

Damage is decided by the object's owner (host / dedicated server). Install the mod on the server to guarantee protection; clients should install it too so every player sees the same behavior.

Build

cd ImmortalPortals

dotnet build.\ImmortalPortals.csproj -c Release

Output: BepInEx/plugins/ImmortalPortals/ImmortalPortals.dll (output path is preconfigured).

Repository

Simplified Chinese

A small Valheim mod: the original two portals (wooden door/stone door) are immune to all damage - monsters, players, fire, snowstorms, volcanic ash and support collapse can no longer destroy them; construction hammer demolition is still available.

• Two original portals are fully covered: portal_wood (portal) and portal_stone (stone portal).
• Immune to all damage paths:
• Monster and player attacks, projectiles, fire, AoE explosions;
• Environmental wear and tear: unsupported collapse, deep north snowstorm, volcanic ash and magma, long-lasting events.
• The construction hammer can still be dismantled: disassembly follows an independent code path, and the portal can be dismantled and materials recycled at any time.
• The old archive will take effect immediately: the blood volume will not be changed, and the archive data will not be written.
• Modded portal variants (using original TeleportWorld components) are also protected and configurable.

Principle: All damage taken by the building is eventually aggregated into WearNTear.ApplyDamage (attack damage via RPC_Damage, environmental wear via UpdateWear). This module only intercepts this method with Harmony and directly skips the portal; the construction hammer removes the WearNTear.Remove → RPC_Remove → Destroy method and does not go through this method, so it is not affected.

| Configuration items | Default | Description |

|---|---|---|

| Enabled | true | Master switch |

| ProtectWoodPortal | true | Protect Wooden Portal |

| ProtectStonePortal | true | Protect Stone Portal |

| ProtectOtherPortals | true | Protect other portal variants that use the original Tele …