Every ship in Space Haven is a puzzle made of tiles. The difference between a ship that thrives and one that constantly teeters on the edge of catastrophe often comes down to a handful of tile placements. Place your oxygen generator too far from the CO2 scrubber and your crew suffocates in their sleep. Cluster your industry too close to crew quarters and morale penalties cascade into a productivity death spiral. Design a single-point-of-failure power grid and one burst pipe during combat kills your entire life support system. This ship design guide compares five proven layout blueprints by the stage they suit, weighs the pros and cons of each hull structure, lists the modules you need in every build, and shows you how to balance oxygen and power so your ship survives everything the galaxy throws at it.

Layout Blueprint Comparison

No single layout is correct for every moment of a Space Haven run. The blueprint below should match the cycle you are in and the threats you face. Use this table to pick your hull shape, then populate it with the module list for that tier.

Blueprint sizes and module lists tested across community builds on r/SpaceHaven and the official Space Haven wiki, version 1.0.

The Life Support Core — Triple System Design

The life support core is the single most important room cluster on your ship. It comprises three systems that must function as one unit: the Oxygen Generator, the CO2 Scrubber, and the Thermal Regulator. When any one of these three fails, the other two become useless within minutes.

The optimal design is a 6x6 or 8x6 compartment placed as close to the geometric center of your ship as possible. The oxygen generator sits in one corner, the CO2 scrubber in the opposite corner, and the thermal regulator in the center. This triangulation equalizes temperature and gas levels across the whole compartment. Ventilation tiles should connect this core to adjacent sealed spaces, but never exceed two ventilation tiles per compartment wall — more than that lowers atmospheric pressure and makes life support work harder.

Carbon dioxide management is the most overlooked aspect of life support design. Each crew member exhales roughly 4 CO2 per hour. A single CO2 scrubber processes 32 CO2 per hour — exactly enough for 8 crew. When crew count exceeds that threshold, CO2 accumulates invisibly until crew suffer efficiency penalties from toxicity. The rule is simple: add a second CO2 scrubber at 8 crew, a third at 16, and so on. Place them on opposite sides of the room for balanced processing.

Life Support Scaling by Ship Size

Scale life support based on sealed compartment area and crew count, not gut feeling. The math below keeps a mid-game ship of 300 sealed tiles with 15 crew alive: 3 O2 generators, 2 CO2 scrubbers, and 2 thermal regulators. Always round up — excess capacity costs only power and materials, while insufficient capacity costs crew lives.

Standby redundancy is not optional on higher difficulties — build one extra of each life-support type in a separate sealed compartment so combat damage cannot kill your whole crew at once.

Power Grid Architecture — Nodes, Loops & Redundancy

Power distribution determines whether your systems work when needed. A poorly designed grid collapses under demand spikes, while a well-designed grid routes around damage and keeps critical systems online under fire. The golden rule is to connect power nodes in a loop so electricity can flow in either direction.

Early game, place 1-2 power nodes in a central corridor junction within 10 tiles of all critical systems for 85-90% efficiency. Mid game, distribute 3-4 nodes in a ring around your ship core and connect them in a loop to reach 90-95% efficiency. Large ships with 5-6 nodes should create two separate grid loops joined at one junction for failover, hitting 95-100% efficiency. A single grid with 7+ nodes is vulnerable to cascade failure — consider splitting power across multiple ships instead.

Dedicate generators to their heaviest consumers. The industrial core draws 60-70% of total ship power, so place your largest generator there. Give the hyperdrive its own generator — jump sequences draw massive power spikes that would brown out the rest of the grid. Life support deserves a protected node that combat damage cannot easily sever.

The Three-Zone Layout Architecture

Every successful Space Haven ship follows the Three-Zone Architecture. This is not stylistic — it is a structural requirement dictated by how the game models noise, heat, gas dispersion, and crew pathfinding.

Zone 1 — Industrial Core: The center of your ship houses assemblers, ore processors, recycler, and heavy machinery. This zone generates noise, heat, and hazardous gases. Wall it off with fire-resistant doors and equip gas vents for emergency evacuation. Connect it directly to an airlock for raw material intake, and place your largest power generator here.

Zone 2 — Crew Habitation Ring: Surrounding the industrial core, this ring contains quarters, recreation, food production, and the medical bay. Isolate it from industrial noise with a full-width utility corridor that triples as a noise buffer, heat sink, and redundant power channel. Crew should reach any habitation room in under 15 tiles from their bunks; beyond 20 tiles, add a second corridor or reorganize.

Zone 3 — Outer Systems Belt: The outermost layer holds shield generators, weapon hardpoints, point-defense turrets, and the hyperdrive. Outer placement maximizes shield coverage and firing angles, and acts as a damage buffer — incoming fire hits the belt first, buying the habitation ring precious seconds. Place redundant life-support units in opposite corners of the belt so one catastrophic hit cannot kill the crew.

Corridor Design & Traffic Optimization

Corridor design is the biggest factor in crew productivity after system placement. Crew spend 40-60% of their workday walking, so every tile shaved off commutes translates directly into productive time.

The standard for main corridors is 2 tiles wide. One-tile corridors create bottlenecks whenever two crew pass — the game makes one wait, adding 1-2 second delays per pass that accumulate into minutes of lost productivity on a busy ship. Two-tile corridors eliminate bottlenecking for ships under 25 crew. Three-tile corridors are only necessary for the main arterial route connecting the industrial core to the airlock, the busiest traffic path on the ship.

The golden rule: never make a crew member walk through one functional room to reach another unless that room is part of their task. Crew crossing a recreation room to reach the med bay disturbs resting crew and adds pathfinding complexity. Design corridors as dedicated transit spaces that connect rooms without passing through them.

Airlock Defense Architecture

Airlocks are where boarding actions begin and end. A well-designed airlock corridor turns a dangerous boarding into a manageable firefight, while a poor one lets enemies flood your ship in seconds.

The airlock should not open directly into any critical room. Connect it to a dedicated defense corridor at least 4 tiles long and 2 tiles wide, lined with cover objects (barricades, storage containers). Place turrets at the far end with overlapping firing lines — two turrets covering the same 2-tile corridor create a kill zone that stops most boarding parties before they reach your crew.

The defense corridor should branch into at least two directions past the kill zone, forcing enemies to split forces rather than push a single chokepoint. The branch toward critical systems should have a secondary chokepoint with another turret. Redundancy in defense mirrors redundancy in life support — never rely on a single point of failure.

Frequently Asked Questions