Integrating Dave Hargrave's Arduin (a chaotic, techno-magical, multi-genre playground) with ACKS II (Adventurer Conqueror King System II, a hyper-detailed, mathematically airtight simulation of medieval demographics and domain management) creates a fascinating campaign style. While ACKS II assumes a relatively grounded world where human kingdoms use strict economics to manage standard feudal resources, Arduin introduces interstellar nexus points, psychopathic non-humans, and high-octane magic. This blog post picks right up from Integrating Adventurer Conqueror King System II (ACKS II) with the legendary, chaotic, and maximum-gonzo DNA of Dave Hargrave's Arduin Grimoires - ACKS II Domain Level Play
To run an Arduin-inspired domain inside the engine of ACKS II, you must convert Arduin's gonzo themes into structural rules, economic adjustments, and mass combat traits.
1. Demographic Inversion: The Chaos Multiplier
Standard ACKS II maps out clear guidelines for how many peasant families fit in a hex, how fast populations grow, and what taxes they generate based on a baseline human template. Arduin completely replaces this baseline with bizarre races like the emotionless Phraints (insectoids), the cynical Deodanths (undead future elves), and radioactive Throons.
Instead of treating non-humans as minor variants, apply an Arduinian Demographics Engine to your ACKS II domain tracking sheets:
| Dominant Race in Hex | ACKS II Growth Modifier | Base Land Yield (gp/family) | Civil Morale Shift |
| Phraints (Insectoid) | Fixed +1% monthly (Cloning/Hives) | $1.25 \times$ Standard (Flawless hive-mind efficiency) | Always Treated as Complacent (Ignore standard unrest prompts) |
| Deodanth (Fallen Elves) | -50% to base growth rate | $0.75 \times$ Standard (Contemptuous of physical labor) | -2 to surrounding Human domains' Morale due to existential dread |
| Techno-Scavengers | Standard | $1.50 \times$ Standard (Paid in recovered pre-cataclysm scrap) | +1 to local technological innovation; -2 to Clerical relationships |
Economic Conversion: In an Arduin domain, taxes are rarely just gold sovereigns. If a hex is occupied by subterranean Saurigs (dinosaur-men), translate up to 50% of your tax revenue into Monster Components and Alchemical Reagents. These materials can directly fund your Mage's magical research pool in ACKS II, bypassing the need to source raw components from market hubs.
2. Advanced Strongholds: The Techno-Nexus and Slaver Hold
ACKS II categorizes strongholds strictly by class archetypes (Fighter Castles, Cleric Churches, Mage Sanctums). Arduin introduces classes and themes that break these feudal boundaries, requiring custom stronghold mechanics.
The Techno-Mage Power Nexus
In Arduin, magic often behaves like physical, high-energy particle physics utilizing "Mana Points" or power crystals.
The ACKS II Mechanic: A Techno-Mage's tower functions as a Mage Sanctum, but it must be built over an active Nexus Point or include an integrated power generator.
This structure increases the base cost of the stronghold by 25% (representing alien alloy plating and focus crystals). However, the Nexus grants a permanent +2 bonus to monthly Magical Research throws and halves the gold piece cost required to craft automatons, constructs, or technological crossbreeds.
Slaver and Courtesan Syndromes
Arduin explicitly treats Slavers and Courtesans as core classes with institutional backing.
The ACKS II Mechanic: Treat Slaver Fortresses and Courtesan Salons as structural variations of the ACKS II Hideout (Thief Domain).
Instead of standard smuggling or pickpocketing "Hijinks," Slaver domains run Abduction and Slave-Raiding operations. This acts as a hostile economic action against adjacent monster or human hexes. A successful operation actively captures 1d10 families from an enemy hex, reducing their domain value and adding them directly to your own workforce or local slave market as luxury or labor commodities.
3. High-Lethality Mass Combat: The "Kill Factor"
The Domains at War engine in ACKS II uses a structured approach to mass combat based on unit composition, morale, and supply lines. Arduin is famous for its sudden, catastrophic combat lethality and explicit critical hit tables.
To merge these two styles without disrupting the tactical math of ACKS II, translate Arduin's combat philosophy directly into the Unit Trait rules:
[Arduinian Vanguard Unit]
↳ Trait: Brutal (Inflicts severe morale penalties when executing a shock charge)
↳ Trait: Rad-Infused (Causes lingering attrition damage to defenders in post-battle phases)
The Critical Overrule
When a Player Character or named Hero commander is embedded within an ACKS II combat unit and scores a critical hit on an enemy leader, immediately halt standard damage calculation. Roll directly on the Arduin Critical Hit Table.
If the result indicates a gruesome, insta-kill outcome (such as "head cleaving" or "pulverization"), the enemy commander is instantly wiped out of the battle narrative.
This triggers an immediate, forced Breakaway Morale Check at a -4 penalty for the entire opposing army sub-division, mirroring the chaotic swing of an Arduinian skirmish.
4. Taxes, Mana, and The Cosmic Domain Event Loop
The core monthly loop in ACKS II relies on stable, predictable calculations:
To truly implement Arduin, the stability of this economic equation should be continually threatened by cosmic, extra-planar nonsense. Replace the standard ACKS II domain events table with a Gonzo Chaos Event Table.
The Arduinian Domain Turn (Roll 1d12 Monthly)
1: Interdimensional Trade Inversion. A portal opens in your primary market hex, linking it directly to the Multiversal Trading Company. Market performance shifts radically. For this month, double all trade tariffs, but there is a 20% chance an alien plague breaks out, reducing population growth by 5% over the next quarter.
2: Sky-Ship Cataclysm. A massive, ancient skyship crashes into a random rural hex. The hex is completely ruined for agricultural production this month, but it yields 10,000 gp worth of unrefined skystone, tech components, and rare energy cells.
3: The Blood Moon Rises. Deodanth, Demon, and Undead populations across your domain go into a frenzy. All military garrisons composed of these units gain a +2 morale bonus, but civil unrest among human populations increases by 1 step.
4–12: Favorable Cosmic Alignment. Standard ACKS II economic growth applies. The flow of magic is clear, reducing the time required for high-tier item enchanting by 1 week for this month.
5. Executing the Monthly Domain Loop
To run this at your table without bogging down into math paralysis, use the structured ACKS II timeline but filter every decision through Arduin's aesthetic priorities:
Using this hybrid architecture gives you the best of both worlds: the narrative freedom, multi-genre wildness, and sheer danger of Dave Hargrave's world, backed by the robust, logical simulation engine of ACKS II.
In ACKS II (Adventurer Conqueror King System II), domain management isn't a side-game or a narrative afterthought—it is the core endgame of the system. The entire economic, legal, and military engine of ACKS II is designed to scale seamlessly from a single 1st-level thief hiding in an alley up to a 14th-level Emperor managing an entire continent.
The ACKS II domain system is built on strict medieval demographics, land yields, and a highly structured monthly turn. Here is a detailed breakdown of how domains function in the system.
1. The Core Infrastructure: Land, Hexes, and Families
Domains in ACKS II are tracked using geographic 6-mile hexes (the standard map scale). The value and power of a domain are not determined by its sheer physical size, but by its population density and Land Value.
The Peasant Family: The fundamental unit of production is the family (roughly 5 individuals). Peasants till the land, pay taxes, buy goods at your markets, and provide the manpower for your garrisons.
Land Value (LV): Each 6-mile hex has an inherent Land Value rating (typically ranging from 4 to 9). This number represents the richness of the soil, access to water, and ease of farming.
Maximum Capacity: A hex can only support a certain number of families based on its Land Value. A standard 6-mile hex with an LV of 6 can support a maximum of 1,200 families. If population growth pushes a hex past its maximum capacity, excess families must migrate to clear adjacent hexes, prompting the ruler to expand their borders.
2. Strongholds and the Class Archetypes
To claim a domain, a character must build a Stronghold to project power and protect the peasantry. In ACKS II, the type of domain you run is strictly tied to your character class, and each generates revenue and resources differently.
| Class Domain Type | Primary Stronghold | Core Economic Engine | Special Mechanics |
| The Feudal Lord (Fighters, Knights) | Castle / Keep | Direct agricultural taxation, land rents, and feudal tithes. | Can attract vast garrisons of professional soldiers at reduced upkeep costs. |
| The Sanctum (Mages, Wizards) | Mage Tower / Dungeon | Magical research, magical item creation, and harvesting reagents. | The domain's hexes naturally attract magical beasts; allows for dungeon-stocking to harvest monster parts. |
| The Vault / Hideout (Thieves, Assassins) | Guildhouse / Urban Vault | Hijinks (Smuggling, racketeering, robbery, and espionage). | Controls an underworld domain that siphons wealth directly from an existing lord's physical domain. |
| The Theocracy (Clerics, Paladins) | Church / Cathedral / Monastery | Religious tithes, donations, and spiritual offerings from the faithful. | Relies heavily on Civilization Morale and can launch Inquisitions or Holy Wars. |
3. The Economic Equation: Calculating Revenue
The monthly domain turn requires the ruler (or the Judge) to calculate the financial flow of the realm. The mathematical baseline for a standard feudal domain is structured around a clear formula:
Revenue Streams
Taxes: Standard baseline taxation is 1 gold piece (gp) per peasant family per month. A ruler can adjust this tax rate up or down, but doing so heavily impacts Civilized Morale.
Land Rents: Peasants pay rent to the lord for the right to farm his soil. This is deeply tied to the hex's Land Value (e.g., an LV 6 hex yields higher rents than an LV 4 marshland hex).
Market Revenue: If your domain hosts a market town or sits along a major trade route, you collect tariffs and trade income based on the Market Class (ranging from a Class VI village to a Class I metropolis).
Cost Structures
Garrison Upkeep: To keep your hexes from reverting to wilderness, you must station soldiers in your stronghold. Un-garrisoned hexes suffer from lawlessness, brigandage, and a rapid drop in peasant morale.
Tithes and Tribute: If you are a vassal to a higher king or emperor, a fixed percentage of your gross income (usually 10% to 20%) must be sent up the feudal ladder.
4. The Stability Engine: Civilized Morale
Peasants are not mindless gold-generators; they have a breaking point. ACKS II tracks Civilized Morale, a variable score that dictates how stable your domain is.
Morale is influenced by your tax rates, the presence of an adequate garrison, random events, and how well you protect the population from monster incursions.
[High Morale] → Population Growth + Immigration → Increased Tax Base
[Low Morale] → Peasant Riots & Emigration → Brigandage & Economic Collapse
If Morale drops into negative values, the domain enters a state of Unrest or open Rebellion. When a rebellion triggers, peasant families stop paying taxes entirely, pick up pitchforks, and form rebel militia units that must be dealt with via the mass combat system (Domains at War).
5. The Monthly Domain Turn Protocol
To keep campaign tracking efficient, ACKS II processes domain management using a strict procedural checklist at the start of every in-game month.
By binding the mechanical progression of the player characters directly to the physical growth, economic health, and military defense of their lands, ACKS II transforms the traditional tabletop campaign into a living, breathing geopolitical sandbox.
