Understanding pax autocratica how to upgrade buildings is the difference between a colony that crumbles by the third Scourgeborn wave and one that industrializes into an unstoppable war machine. Every structure in your settlement — from the humble barracks to the towering command center — follows a tiered upgrade path that demands specific materials, research unlocks, and strategic placement. Because each upgrade permanently consumes resources and blocks that building from producing for the duration, knowing the exact costs and order matters more than raw output numbers.
The game's recent demo update introduced a research queue that lets you chain building and technology research, which directly changes how you plan your upgrade cycles. This guide breaks down the upgrade mechanics, the best base layout principles, and the material math behind each tier so you can expand without stalling your economy.
How Upgrades Increase Building Output
The upgrade system in Pax Autocratica revolves around a simple loop: gather resources, unlock research, upgrade buildings, repeat. Each building type has its own upgrade tree, and the costs scale multiplicatively rather than linearly. A level 2 barracks might cost 50 wood and 30 stone, but level 3 jumps to 150 wood, 90 stone, and 20 iron — a 3x increase across the board.
What complicates this is the upgrade downtime mechanic. When a building is upgrading, it stops producing entirely. A level 1 lumber mill producing 12 wood per day becomes a dead asset for the 2-3 days it takes to reach level 2. This means you need buffer stockpiles before initiating any upgrade, or your entire production chain stalls.
Key upgrade mechanics you must understand:
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Tier gating: Most buildings require the Command Center to reach a certain level before they can advance. A level 2 workshop needs a level 2 Command Center, and so on.
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Research prerequisites: The demo update added a research queue, meaning you can now queue building research behind technology research. This reduces idle time but requires you to plan ahead.
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Worker allocation: Upgraded buildings often require additional assigned workers. A level 1 barracks houses 4 soldiers, but level 2 requires 2 dedicated maintenance workers to keep it operational.
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Adjacency bonuses: Buildings placed next to compatible structures gain efficiency bonuses. A soldier quarters next to a barracks reduces soldier recovery time by 10%.
The upgrade confirmation screen displays the full cost breakdown, the new stats, and the estimated completion time, so treat it as your final pre-commitment checklist. Before you hit confirm, cross-reference the resource drain against your current stockpile—especially if you’re upgrading a soldier quarters while a raid is incoming, since a sudden deficit can cripple your colony defense. There is no cancel-and-refund option once construction begins, so a misclick on a high-tier building can set your entire pax autocratica base layout back by hours, forcing you to grind for lost materials instead of advancing your colony layout.
Upgrade Cost Scaling by Building Type
Different building categories in Pax Autocratica scale at wildly different rates—civilian structures like soldier quarters follow a gentle linear curve, while defensive and production buildings spike exponentially after level five. Knowing these curves is the difference between a thriving colony layout and a resource-starved one. For example, upgrading a soldier quarters to level three costs roughly 40% of what a level three turret demands, so pushing cheap housing early frees materials for the expensive military upgrades your colony defense depends on. Prioritize based on the slope, not the base cost, and you’ll avoid stalling your best base layout mid-game. Here is the cost progression data reported by players across the demo builds:
| Building Type | Level 1→2 Cost | Level 2→3 Cost | Level 3→4 Cost | Build Time (L2) |
|---|---|---|---|---|
| Barracks | 50 wood, 30 stone | 150 wood, 90 stone, 20 iron | 400 wood, 240 stone, 80 iron | 2 days |
| Lumber Mill | 40 wood, 20 stone | 120 wood, 60 stone, 15 iron | 300 wood, 160 stone, 50 iron | 1.5 days |
| Workshop | 60 wood, 40 stone | 180 wood, 120 stone, 30 iron | 500 wood, 320 stone, 100 iron | 2.5 days |
| Command Center | 100 wood, 80 stone | 300 wood, 240 stone, 60 iron | 800 wood, 600 stone, 200 iron | 4 days |
These numbers come from community testing during the demo update cycle, so they may shift slightly in the full release. The pattern is clear though: Command Center upgrades cost roughly double the equivalent tier of other buildings, which makes it the bottleneck for your entire colony's progression.
Research Queue and Upgrade Planning
The research queue introduced in the demo update changed how you approach upgrades significantly. Previously, you had to wait for research to complete before starting a building upgrade, creating dead time. Now you can queue both, but this creates a new problem: resource competition.
When you queue a research project and a building upgrade simultaneously, both draw from the same resource pool. If you queue a research that costs 200 wood while your barracks upgrade needs 150 wood, you might find yourself short when the upgrade tries to start. The game does not auto-pause; it simply delays the start until resources are available.
Practical planning tips from the community:
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Always queue resource production upgrades before consumption upgrades
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Keep a buffer of 20% above the stated upgrade cost in your stockpile
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Use the research queue for short research items (under 1 day) while longer building upgrades run
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Prioritize Command Center upgrades during low-production periods, since the downtime hits hardest there
Pax Autocratica Base Layout Principles
Your pax autocratica base layout determines how efficiently your colony produces, defends, and expands. The game uses a grid-based placement system with road connections, and buildings gain bonuses from adjacency. A scattered layout might look organic, but it costs you production efficiency and makes defense harder.
The core principle is zoning: group production buildings together, keep housing separate, and place military structures near the perimeter. This reduces worker travel time, which directly translates to more production cycles per day. A worker traveling 10 tiles to reach their station loses roughly 15% of their workday to walking.
Best base layout considerations:
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Production core: Place lumber mills, quarries, and workshops in a central cluster. This minimizes travel for the workers who cycle between them.
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Residential ring: Housing, including soldier quarters, should form a ring around the production core. Workers live close to their jobs, and soldiers are central enough to respond to any breach.
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Defensive perimeter: Walls, turrets, and barracks belong on the outer edge. This creates a layered defense where the first wave of enemies hits your military structures before reaching civilians.
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Expansion corridors: Leave 2-tile-wide gaps between building clusters for future roads and expansion. Trying to squeeze new buildings into a tight layout later is a common mistake.
The pax autocratica colony layout also needs to account for the Scourgeborn attack patterns. According to community reports, enemies tend to approach from the direction of the nearest spawn point, which shifts as you expand. A layout that was defensible at day 20 might have a blind spot by day 40.
Command Center Placement Strategy
The Command Center is the heart of your colony, and its placement affects everything from upgrade speed to defense. Because it gates all other building upgrades, losing it to an attack sets you back days. The community consensus is to place it in the geometric center of your base, surrounded by at least one layer of production buildings.
This central placement serves two purposes. First, it reduces the travel time for the administrator workers who constantly shuttle between the Command Center and other buildings. Second, it creates a natural defensive core — enemies have to fight through your production ring before they can reach it, giving your soldiers time to respond.
Command Center adjacency bonuses:
| Adjacent Building | Bonus Effect |
|---|---|
| Workshop | Research speed +5% |
| Barracks | Soldier recruitment speed +10% |
| Warehouse | Storage capacity +15% |
| Lumber Mill | Production efficiency +5% |
These bonuses stack multiplicatively, so placing your Command Center adjacent to multiple compatible buildings creates a compounding advantage that scales with your colony layout. For example, in a tight cluster with a Soldier Quarters, a Storage Depot, and a Power Plant all touching it, the combined adjacency boosts can push a Level 3 Command Center's output roughly 15-20% above its base stats—effectively granting you a free upgrade tier without spending additional resources. This makes central, hub-style positioning critical when planning your pax autocratica base layout, as the early adjacency gains compound into significant efficiency dividends by mid-game, especially when you later upgrade those surrounding structures to amplify their individual contributions.
Soldier Quarters and Military District
The pax autocratica soldier quarters deserve special attention because they directly impact your defensive capability. Unlike civilian housing, soldier quarters provide both housing and combat readiness bonuses. Soldiers assigned to quarters adjacent to a barracks recover health 15% faster and gain a small experience bonus.
Your pax autocratica colony defense strategy should include a dedicated military district. This is a cluster of barracks, soldier quarters, and armories placed near the expected enemy approach vector. The district should be walled separately from the civilian area, creating a castle-and-bailey defense structure.
Military district layout checklist:
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Barracks at the outer edge to absorb the first wave
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Soldier quarters behind the barracks for quick reinforcement
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Armory in the center of the district to minimize resupply travel
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At least two access points so soldiers can sortie without creating a traffic jam
Pax Autocratica Base Design for Expansion
Your pax autocratica base design needs to account for the fact that you will outgrow your initial layout. The demo update's improvements to early-game quests, including "Space Resources" and "Engage the Scourgeborn," mean you unlock new building types faster than before. A layout that works for 10 buildings will feel cramped at 20.
The key is to plan for expansion from day one. Leave buffer zones between your building clusters, and orient your roads so they can extend outward in straight lines. Curved or diagonal roads look nice but waste space and make future expansion awkward.
Expansion planning principles:
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Reserve 20% of your buildable area as empty space for future buildings
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Extend roads before you need them, not after
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Place resource storage near the edge of your current build area so new production buildings can draw from it
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Keep the Command Center central even as you expand — moving it is expensive and disrupts your entire layout
The pax autocratica best base layout evolves through distinct phases. In the early game, you focus on basic production and a single barracks. By mid-game, you need a full military district and specialized production buildings. Late game introduces industrial zones that consume massive amounts of space.
Early Game Layout (Days 1-15)
In the first two weeks, your priority is resource stability. You need a lumber mill, quarry, and basic housing operational before you can think about military expansion. The layout should be compact, with all buildings within a 10-tile radius of the Command Center.
Early game build order:
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Command Center (starting building)
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Lumber Mill — placed adjacent to Command Center for the production bonus
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Quarry — opposite side of Command Center from lumber mill
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2x Basic Housing — near the production buildings
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Barracks — at the edge of your build area, facing the expected enemy approach
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Workshop — adjacent to Command Center for the research bonus
This layout gives you a solid production base while keeping your military presence minimal but functional, which is exactly what you need before your first major upgrade push. The barracks at the edge means soldiers can intercept enemies before they reach your production buildings, buying you the critical 10-15 seconds needed to complete a tier-2 upgrade without interruption. For example, when upgrading your sawmill to level 3, a single squad stationed at that perimeter chokepoint can hold off an early raider wave, letting your workers finish the build. This positioning also frees up interior space for the storage and workshop clusters you’ll need to chain upgrades efficiently in the mid-game.
Mid Game Layout (Days 16-40)
Once you have your first upgrade cycle complete, you can start expanding into a proper pax autocratica colony layout. This is where the military district takes shape, and you add specialized production buildings like the forge and alchemist's lab.
Mid game additions:
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Soldier quarters cluster behind the barracks
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Armory between barracks and soldier quarters
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Forge adjacent to workshop for the crafting bonus
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Warehouse near the production core to buffer resource fluctuations
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Second barracks on the opposite side of the base for defense in depth
The mid game is also when you should start walling your perimeter, ideally before you begin upgrading your barracks and turret housings to their second tier. A complete wall with two gates gives you control over enemy movement and forces the Scourgeborn into kill zones where your soldiers and turrets can focus fire. This layout is critical because chokepoints reduce the need for high-level defensive upgrades on every structure, letting you prioritize upgrade materials toward your core production buildings instead of spreading them thin across a sprawling, unfortified colony.
Late Game Industrial Zones
The late game transforms your colony into an industrial powerhouse, but this shift demands a pax autocratica base design that strictly separates heavy industry from residential quarters. Because each upgraded factory or refinery pumps out pollution that directly degrades nearby housing quality—dropping worker satisfaction and slowing production—you must buffer these zones with empty space or storage depots. For instance, cluster your advanced smelters along the colony’s outer ring, downwind of your core, while keeping upgraded residences and soldier quarters on the opposite side. This zoning not only preserves morale but also simplifies defense, since you can wall off the industrial sector as a single chokepoint.
Industrial zone requirements:
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Foundry — produces advanced alloys, requires iron and coal
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Refinery — processes raw materials into components
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Factory — assembles components into finished goods
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Power plant — provides electricity to nearby buildings
These buildings are large and consume massive resources, so their placement directly impacts your logistics efficiency. The industrial zone should be at the edge of your base, downwind of residential areas, with its own dedicated warehouse and road connection. This prevents pollution from degrading worker housing, while a separate road network keeps heavy truck traffic from clogging the main thoroughfares used by your upgraded production lines. For example, a dedicated warehouse here allows you to stage raw materials for rapid delivery to smelters, cutting transport wait times by nearly a third during peak upgrade cycles.
Upgrade Priority and Material Management
Knowing pax autocratica how to upgrade buildings is only half the battle — you also need to know which buildings to upgrade first. The wrong priority can leave you with a level 3 barracks and no wood to build a level 2 workshop, stalling your entire research pipeline.
The community consensus, based on demo testing, is that Command Center upgrades take top priority until level 3. This is because every other building's upgrade ceiling is tied to the Command Center level. A level 2 Command Center caps all other buildings at level 2, regardless of how many resources you have.
Upgrade priority ranking:
| Priority | Building | Rationale |
|---|---|---|
| 1 | Command Center | Gates all other upgrades |
| 2 | Lumber Mill | Wood is the most-used resource |
| 3 | Workshop | Unlocks new building types |
| 4 | Barracks | Military strength for defense |
| 5 | Quarry | Stone needed for walls and upgrades |
| 6 | Housing | Population cap for workers |
This ranking assumes you have a stable defense. If you are under active threat, barracks upgrades jump to the top. The game does not pause enemy attacks while you build, so a colony that loses its military edge will collapse.
Material Cost Optimization
Material costs scale aggressively, so you need to optimize your resource production before committing to expensive upgrades. The lumber mill is the backbone of your economy, and upgrading it early pays dividends because every other building consumes wood. For instance, a level 3 workshop requires 120 wood, but a level 5 lumber mill produces 45 wood per minute—meaning you’d wait nearly three minutes per upgrade cycle if you neglect it. Prioritize timber output first, then balance stone and iron, since a stalled wood supply halts all construction progress and leaves your colony vulnerable during peak expansion phases.
Material production tips:
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Run your lumber mill at maximum worker allocation during the first 10 days
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Build a second lumber mill before upgrading the first to level 3
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Stockpile 20% above the upgrade cost before starting
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Use the research queue to unlock wood-saving technologies early
The demo update’s improvements to the “Space Resources” quest also refined how you acquire rare materials, making the early-game grind far less punishing. Completing this quest line now grants a steady bonus of iron and crystal, which directly offsets the steep Command Center upgrade costs—a critical relief since that building is the backbone of your colony’s tech progression. For example, by finishing the quest twice before your fifth day, you can save roughly 1,500 crystal, enough to fund the Level 3 upgrade without delaying your soldier quarters or defensive walls. This synergy encourages you to prioritize the quest early, ensuring your base layout and upgrade pacing stay on track.
Costly Timing Errors in Upgrade Planning
Players report several recurring mistakes when upgrading buildings, and most of them stem from impatience or poor planning. The most common is starting an upgrade without a resource buffer. If an enemy raid hits mid-upgrade, you have no resources to repair walls or rebuild destroyed buildings.
Mistakes to avoid:
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Upgrading housing before production — more population means more mouths to feed but no extra resources
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Ignoring the Command Center cap — wasting resources on a building that cannot upgrade yet
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Overbuilding military structures — soldiers cost upkeep, and a large army with no economy collapses
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Scattering buildings — a spread-out layout wastes worker time and makes defense harder
Frequently Asked Questions
What is the fastest way to upgrade buildings in Pax Autocratica?
The fastest path is to prioritize your Command Center to level 3 first, then upgrade your lumber mill and workshop simultaneously. Use the research queue to chain related upgrades, and always maintain a 20% resource buffer above the stated cost so construction never stalls.
How do I unlock higher building tiers?
Higher tiers unlock through a combination of Command Center level and workshop research. Each building type has a research requirement that appears in the workshop once you meet the prerequisites. Check the research tree regularly, because new options appear as you upgrade your Command Center.
What is the best base layout for defense?
The best defensive layout uses a castle-and-bailey design: a military district at the perimeter with barracks and soldier quarters, a production core in the middle, and the Command Center at the geometric center. Wall each district separately and leave two access points for sorties.
How many soldier quarters should I build?
Build one soldier quarters per two barracks, which gives you enough housing for your standing army plus a reserve. Each soldier quarters houses 4 soldiers, and you want at least a 50% reserve capacity so you can recruit replacements after heavy losses.
Does building placement affect upgrade speed?
Yes, adjacency boosts production efficiency, which speeds upgrades indirectly. Place workshops next to the Command Center for a 5% research bonus, and lumber mills nearby for 5% more wood. For a full build-order breakdown, see our building priority guide. Plan your layout around these adjacency bonuses early in the run.