Arena Combat

Arena Combat

Build an Arena Coordinator, choose an opponent, and turn your own arena into a place to practice combat or farm monster resources.

The Coordinator uses Valheim's T.W.I.G. model and stands still. Its searchable opponent menu follows your world's boss progression and offers 0, 1, or 2 stars. Practice is always free; loot fights spend a reserve that replenishes automatically.

Features

• Unlock enemies by world progression: defeating The Queen opens Ashlands opponents. Earlier biomes remain available.
• Bosses and minibosses are excluded, including Lord Reto and Hildir encounter enemies.
• Duplicate enemy variants are consolidated. Dvergr variants appear at their native biome tiers.
• Search and biome filters, trophy icons where available, clear selected options, and fast mousewheel scrolling.
• One encounter per Coordinator, with a five-second overhead countdown.
• Choose 1.0x-3.0x health and damage in 0.1x steps, earning 50%-250% of native loot.
• Free Practice fights at every star level and strength, with no item drops or trophies.
• Loot rewards fights use regenerating reserve tokens, with discounts for older biomes.
• A shared, saved coin allowance limits arena coin farming while leaving other loot unchanged.
• Automatic silent cleanup when players leave, or when an arena enemy kills the last nearby player.
• Arena enemies cannot be tamed, commanded, saddled, or bred.
• Arena creature attacks and effects leave buildings, scenery, and terrain intact by default.
• Coordinators are invulnerable by default; you can still remove them with the Hammer.

Installation

Install Arena Combat and its dependencies on the server and every client. Use the same Arena Combat version throughout your group.

With Thunderstore Mod Manager or r2modman, install the package and launch the profile modded. The manifest declares the required BepInExPack Valheim and Jötunn packages.

For a manual installation, install those dependencies first, then copy the ZIP's BepInEx folder into your game or server folder. Both ArenaCombat.dll and ArenaCombat.Core.dll must remain together under BepInEx/plugins/ArenaCombat.

Launch once to generate BepInEx/config/cheyenne.valheim.arenacombat.cfg.

Build and use

1. Equip the Hammer and open the Arena category.
2. Build Arena Coordinator with 10 Wood + 5 Stone, near a Workbench.
3. Interact with it, choose an enemy, star level, and strength, and select Practice or Loot rewards.
4. Press Summon enemy and prepare for the countdown.

Only admins or the local host can build Coordinators by default. Multiplayer placement uses the server's admin decision, including native bare/prefixed platform-ID matching; it refreshes with the regular settings poll. Everyone can use them. The default world limit is ten; both restrictions are configurable.

A newly built Coordinator starts with zero tokens. You can use free practice immediately. Loot fights become available as its reserve fills.

Progression

Unlocks come from the world's boss defeat keys, rather than the player's current location.

| Latest defeated boss | Newly available opponents | | --- | --- | | None | Meadows | | Eikthyr | Black Forest | | The Elder | Swamp | | Bonemass | Mountains | | Moder | Plains | | Yagluth | Mistlands | | The Queen | Ashlands | | Fader | Deep North, when supported by the installed game |

Earlier unlocked biomes remain available. Unknown modded enemies can be assigned a tier through EnemyTierOverrides; boss and friendly-creature exclusions still apply.

Tokens and loot

Each Coordinator stores up to 200 tokens and regenerates 5 tokens per real minute, including unloaded areas and server downtime.

Practice costs zero tokens, regardless of biome or stars, and produces no item drops or trophies.

With loot rewards enabled, the default base costs are 5 / 15 / 30 tokens for 0 / 1 / 2 stars, plus a 20-token loot surcharge. The total receives a 20-percentage-point discount for each biome tier behind current progression. Discounts stack linearly; five or more tiers behind is free. Fractional final prices round up.

For example, a two-star loot fight costs 50, 40, 30, 20, 10, or 0 tokens at 0, 1, 2, 3, 4, or 5 tiers behind.

Failed or abandoned countdowns are refunded. After an enemy successfully spawns, its tokens remain spent even if the encounter later despawns or ends in defeat. Removing and rebuilding a Coordinator starts a new empty reserve.

Strength and loot rewards

The right-hand panel has a Strength selector from 1.0x to 3.0x, in 0.1x increments. Strength multiplies the opponent's health and outgoing damage on top of its native star level and the world's combat settings. Movement speed, attack speed, resistances, and AI behavior remain native.

| Strength | Health and damage | Average native item loot | | --- | --- | --- | | 1.0x | 100% | 50% | | 1.1x | 110% | 60% | | 1.5x | 150% | 100% | | 2.0x | 200% | 150% | | 3.0x | 300% | 250% |

Each 0.1x strength step adds ten percentage points of loot. The percentage applies to the native loot for the selected stars and world drop settings, including materials, trophies, and Coins. At 1.5x, the result is the original native loot roll. Percentages represent expected yield over repeated fights; fractional item quantities use chance-based rounding, so a one-item reward is not always rounded up or always deleted. Above 100%, additional native item rolls preserve native probabilities instead of simply duplicating every successful rare drop.

Practice is still free and drops no items at any strength. Strength does not change the reserve price of loot fights. The shared coin allowance is applied after the increased coin roll, so stronger enemies cannot bypass it.