Octo Arsenal 0.5.27

Historical steel weapons, shields and individual weapon progression for Valheim. By OctoDad / Studio Bascinet.

Equipment

Ten equipment lines: Steel Dane Axe, Steel Sword, Steel Winged Spear, Steel Bearded Axe, Steel Berserker Axes, Norse Bow, Viking Round Shield, Kite Shield, Steel Longsword and Armour Fang. Upgrade appearances and selectable shield styles are included. The Steel Longsword has four appearances at qualities 1, 4, 7 and 10.

Armour Fang is a one-handed mace with a blunt hammer face and a piercing pick face. Press Y while it is equipped to turn it around. Pick mode mines suitable ore as its quality improves. Both faces share durability, quality and quest progress.

Quench the steel in the blood of your foes

Craft the bow at Workbench level 4 and the other equipment at Forge level 4. Normal upgrades through level 10 require materials and a completed quenching quest. Trophy requirements have been removed. Each physical weapon keeps its own quest progress, so another newly crafted weapon starts separately.

An enemy must take damage from a weapon and then die to grant progress. The weapon does not have to land the final hit. Shields count eligible enemies the player helped damage while that physical shield is equipped when death credit arrives; blocking is not required. Mining, misses, PvP and tamed allies grant no progress.

The next-quality quest follows this ladder:

Target quality	Enemies required
2	10 wolves and 2 cultists
3	15 wolves and 2 cultists
4	12 fulings and 1 fuling berserker
5	18 fulings and 2 fuling shamans
6	10 seekers and 1 seeker soldier
7	14 seekers and 2 seeker soldiers
8	12 charred foes and 2 asksvin
9	18 charred foes and 1 morgen
10	20 eligible Deep North foes
11–30	Eligible Ashlands / Deep North foes, rising from 20 at 11 to 50 at 30
31+	50 eligible Ashlands / Deep North foes per new quality

Above level 10, completed quests and battle idols are both required. Each successful level retains the existing 5% compounded growth in damage, block armor and durability. A failed or unchanged idol attempt retains completed quest credit. The manual download includes the full material costs and quenching notes.

New weapon stats

Values below are the configured endpoints at qualities 1 → 10, before player skill and other effects. Armour Fang's two modes use the same item.

Stat	Steel Longsword	Armour Fang: hammer	Armour Fang: pick
Damage	145 → 338 slash	95 → 260 blunt	85 → 235 pierce
Normal attack stamina	18	16	18
Secondary attack stamina	35	28	28
Block armor	50 → 78	40 → 60	40 → 60
Parry bonus	2× → 5×	2× / 3× / 4× at quality 1 / 5 / 10	Same as hammer
Knockback	50 → 55	75	20
Backstab	3×	3×	3×
Durability	250 → 1000	250 → 1000	Shared with hammer
Weight	3.5	2.5	2.5
Movement penalty	−5% → −1%	−5%	−5%

Controls

Key / action	Function
N	Show or hide the smaller quest tracker to the right of the hotbar
Y	Switch the equipped Armour Fang between hammer and pick
Alt + 1 / 2 / 3	Access quiver or spear-carrier slots when those accessories are active

Hiding the tracker does not stop quest progress. Locked upgrades display Steel needs Quenching. Hammer/pick switching is disabled during attacks, blocking, dodging and input menus. N and Y can be rebound in the main configuration.

The approved model positions, rotations and sizes are built in. The temporary fitting editor has been removed and F9 is no longer used.

Requirements and optional accessories

• Valheim with BepInEx 5. This build targets the installed Valheim 1.0.20 APIs.
• Install the same Octo Arsenal version on all clients and the dedicated server.
• A compatible OctoPack is optional for the backpack quiver and three-spear carrier. OctoPack 1.6.47 is the API version checked by the compatibility tests. Without a compatible OctoPack, the weapons remain available.
• Better Archery is optional. Its enabled recovery, crouch and nocked-arrow features take precedence to prevent duplicate effects.
• Remove the separate OctoPack_addon_Quiver plugin before using this mod; its functionality overlaps the included quiver.

The quiver and carrier are crafted at a workbench. Put the accessory in a compatible backpack and right-click to equip it. Their shortcut-panel headings can be dragged, and panel offsets are saved in the main configuration.

Install or update

Use your mod manager, or install manually:

1. Close Valheim.
2. Install BepInEx 5 if it is not already installed.
3. Copy the manual package's plugins folder into Valheim/BepInEx. The resulting file is BepInEx/plugins/OctoArsenal/OctoArsenal.dll.
4. Keep only one OctoArsenal DLL. When updating, replace the previous DLL and keep the main configuration. No character or world save reset is required.
5. Start Valheim with matching versions on every client and the server.

The mod retires obsolete editor settings and archives OctoArsenal.Fitting.cfg as a .bak file. Approved fits are built in; no fitting file is needed. Existing item quality, hammer/pick mode and quenching data keep their native save keys.

BepInEx, game assemblies and other mods are not bundled.

Release and test scope

Version 0.5.27 adds public AI disclosure metadata and release packaging to 0.5.26. Gameplay, approved fits, stats, costs, quests and model assets are retained.

The release build and automated regression checks pass. The final release binary and live multiplayer have not received an in-game test. All players and the server must use the same version. Offline players cannot receive kill credit. More test details are included in the manual download.

Community and support

Join OctoDad's Mods on Discord for questions, bug reports and future mods. Include your mod version and the relevant BepInEx log when reporting a problem.

Credits and AI disclosure

Created by OctoDad / Studio Bascinet.

Created and maintained with generative AI assistance from OpenAI Codex (OpenAI), including code, documentation, concept references and asset-production assistance. The promotional equipment images use renders of the actual mod models. The mods have been built and tested during development; see Release and test scope above.

Gallery