Buildings

Every settlement will begin with a Citadel, which produces 180 Oxygen, 8 Citizens and 10 Military Capacity and stores resources. All buildings need a path to the Citadel to function and will shut down if pieces facilitating this are destroyed or recycled. If the Citadel is destroyed the mission is lost.

Buildings must be placed within owned territory, which is projected around the Citadel and Beacons. Pieces can be built anywhere.

A buildings can only be placed where it has enough Support from below. If sections providing Support are destroyed or removed the supported building may collapse. When time is paused a building won't collapse without Support. Buildings left without Support will be highlighted red.

You can recycle placed buildings to recover their resources pressing the recycle button below the build menu and then clicking on the buildings you want recycled.

Buildings can be stacked on top of other buildings if there is room.

Resource Gathering

Workers carry materials from the resource gathering building to the nearest Warehouse or Citadel. The shorter the distance the faster resources will be gathered.

Raw Materials

Building	Effect	Max. Production	Cost	Maintenance
Sawmill	Gathers wood	15 Wood/min

• Sawmill: Max. Production: 15 Wood/min. Cost: 75 Oxygen. Maintenance: 30 Oxygen/min. Build Time: 35 seconds.
• Quarry: Gathers Stone and Minerals. Workers carry materials to the Citadel or a Warehouse. Needs stone or minerals around around to be placed and the more resources are nearby the more will be gathered.
• Warehouse: Increases the storage limit of Wood, Stone and Minerals, allows research of resource gathering improvements and serves as a drop-off point for resources. Cost: 405 Oxygen, 120 Wood, 20 Minerals, 14 Citizens. Maintenance: 200 Oxygen/min. Build Time: 63 seconds.

Air Filtering

• Air Filter: must be placed high. Max. Production: 180 Oxygen/min. Cost: 48 Wood. Build Time: 35 seconds. Citizens Needed: 2.

City Buildings

City Growth

• Shack: basic housing that provides 4 Citizen Capacity. Can be placed on top of Stone and other buildings. Cost: 30 Wood. Maintenance: 15 Oxygen/min. Build Time: 35 seconds.
• Beacon: expands the settlement's territory but may attract horrors. Cost: 28 Oxygen. Maintenance: 5 Oxygen/min. Build Time: 28 seconds.

Military Growth

• Barracks: trains and improves Bowmen, Lobbers and Captors. Cost: 225 Oxygen and 120 Wood. Maintenance: 90 Oxygen/min. Build Time: 42 seconds. Citizens Needed: 10. Has a 3x3 flat area on top.

Pieces

Pieces are constructed instantly. If you hold and drag with left mouse button pressed you can build multiple pieces in a straight line.

Pieces made primarily of stone will have their Toughness upgraded if there are other pieces made primarily of stone underneath or above them. They gain x10 Toughness if there are 3 pieces above/below and x25 Toughness if there are 6 pieces above/below. Pieces that are in danger of breaking will glow red.

A gap made traversable with wood pieces

Wood Pieces are quick, cheap and require less Support but their Toughness is low. The are perfect for quickly building complex structures and reaching distant places.

• Primary
  • Wood Strut
• Secondary
  • Wood Half Arch
• Stairs
  • Wood Steps

Stone Bricks changing appearance as stacked

Stone Pieces are resilient but require more Support.

• Primary
  • Stone Brick
• Secondary
  • Stone Half Arch
• Stairs
  • Stone Steps

Advanced Pieces

Doors are available from the start and allow units to pass through walls.

Door	Effect	Toughness	Cost
Door	Allows only human units to pass	6	15 Stone 24 Wood 4 Minerals
Double Door	Allows only human units to pass	8	25 Stone 36 Wood 6 Minerals
Arch Doorway (1x1)	Allows all units to pass	2	6 Stone
Arch Doorway (1x2)	Allows all units to pass	3	12 Stone

Windows are unlocked at Prosperity level 2.

Tactical Pieces

A wall section that uses various tactical pieces

General Boosts provide benefits to nearby defenses or units next to them.

Tactical Piece	Effect	Toughness	Cost
Merlon	Boosts the range of any unit behind it Upgrades the Toughness of stone pieces below it	2	6 Stone
Merlon (interior corner)	Boosts the range of any unit behind it Upgrades the Toughness of stone pieces below it	2	15 Stone
Merlon (exterior corner)	Boosts the range of any unit behind it Upgrades the Toughness of stone pieces below it	2	6 Stone
Banner	Increases attack damage of adjacent units.	1	12 Stone 10 Minerals

Traps can be set up to damage approaching horrors but are destroyed after some use. Unlike other buildings recycling them does not refund resources.

• Spikes: deals damage to any horror walking through it.

Specialist Boosts Specialist Boosts are unlocked at Prosperity level 2.