Citadels can be built on any Terraform using the Nexus. A citadel will provide additional attack, defense, range and resource production. It may also unlock additional utility!
There are 9 components to the citadel:
- Habitat (unlocks other modules)
- Launchpad
- Mage Tower*
- Power Module
- Research Module*
- Resource Processing Facility*
- Storage Module
- Defensive Turret
- Walls
* Unlocks additional utility
On deployment of a habitat, the player will need to select Grey or Brown color.
Modules & Upgrades
Each component can be upgraded to level 3 (but the Habitat needs to be upgraded first).
Utility and bonuses do not accumulate, they are as stated for each level.
| Module | Utility + Bonuses | Cost |
|---|---|---|
| Habitat L1 | Unlocks L1 modules +2 Defense +1 Range +10% Harvest | 25k $RAD |
| Habitat L2 | Unlocks L2 modules +3 Defense +1 Range +10% Harvest | 50k $RAD 25 Fresh Water 25 Greens |
| Habitat L3 | Unlocks L3 modules +4 Defense +1 Range +10% Harvest | 75k $RAD |
| Walls L1 | Nullifies attacks +1 Citadel Shield | 25 Copper 25 Cardanium |
| Walls L2 | Nullifies attacks +2 Citadel Shield | 50 Iron 50 Cardanium |
| Walls L3 | Nullifies attacks +3 Citadel Shield | 100 Iron 100 Cardanium 50 Darkwood |
| Defensive Turret L1 | +4 Defense | 25 Radium 5 Machine Components |
| Defensive Turret L2 | +8 Defense | 50 Cardanium 50 Iron 10 Machine Components |
| Defensive Turret L3 | +12 Defense | 100 Cardanium 75 Iron 20 Machine Components 1 QDE |
| Mage Tower L1 | * Enables L1 Spells +2 Defense +1 Range | 25 Cardanium 10 Red Runes 10 Blue Runes 10 Green Runes |
| Mage Tower L2 | * Enables L2 Spells +3 Defense +2 Range | 50 Cardanium 20 Orange Runes 20 Purple Runes |
| Mage Tower L3 | * Enables L3 Spells +4 Defense +3 Range | 100 Cardanium 20 Timelost Runes 25 Prismatic Dust |
| Research Module L1 | * Enables Research Panel +100 Research points (per epoch) +5% Research speed | 50 Research Points 50 Copper 25 Gems |
| Research Module L2 | * Enables L2 Research options +200 Research points (per epoch) +10% Research speed | 250 Research Points 100 Copper 50 Gems |
| Research Module L3 | * Enables L3 Research options +300 Research points (per epoch) +15% Research speed | 500 Research Points 200 Copper 100 Gems |
| Resource Processing Facility L1 | * Enables Crafting Panel +5 Machine Components (per epoch) | 10 Cardanium 25 Stone |
| Resource Processing Facility L2 | * Enables L2 Crafting options +10 Machine Components (per epoch) | 20 Cardanium 50 Stone 50 Lightwood |
| Resource Processing Facility L3 | * Enables L3 Crafting options +20 Machine Components (per epoch) | 30 Cardanium 75 Custodial Nanites 25 Funky Liquid |
| Launchpad L1 | +1 Range | 25 Copper 25 Antigravity Particles 10 Machine Components |
| Launchpad L2 | +2 Range | 50 Copper 50 Antigravity Particles 20 Machine Components |
| Launchpad L3 | +3 Range +1 Battle counter (per epoch) | 75 Copper 75 Antigravity Particles 30 Machine Components |
| Storage Module L1 | +2 Citadel Inventory Slots | 75 Iron 50 Darkwood |
| Storage Module L2 | +3 Citadel Inventory Slots | 100 Iron 75 Darkwood |
| Storage Module L3 | +5 Citadel Inventory Slots | 150 Iron 100 Darkwood |
| Power Module L1 | +100 Energy (per epoch) +10 Toxic Waste (per epoch) | 75 Copper 10 Machine Components 5 Radium |
| Power Module L2 | +200 Energy (per epoch) +20 Toxic Waste (per epoch) | 100 Copper 20 Machine Components 10 Radium |
| Power Module L3 | +300 Energy (per epoch) +30 Toxic Waste (per epoch) | 200 Copper 30 Machine Components 1 QDE |
Builds take various timeframes to complete:
- L1 = 1 hour
- L2 = 6 hours
- L3 = 12 hours
You can check progress by clicking on the item being built.
Fully Deployed Citadel Costs & Benefits
| Component | Total Build Cost |
|---|---|
| LEVEL 3 – FULL CITADEL +3 Citadel Shield +20 Defense +7 Range +1 Battle counter +10% Harvest +5 Citadel Inventory Slots +15% Research speed +300 Research points (per epoch) +20 Machine Components (per epoch) +300 Energy (per epoch) +30 Toxic Waste (per epoch) * Enables L3 Spells * Enables L3 Research options * Enables L3 Crafting options | 150,000 $RAD 900 Copper 600 Iron 560 Cardanium 275 Darkwood 175 Gems 155 Machine Components 150 Stone 150 Antigravity Particles 50 Lightwood 25 Fresh Water 25 Greens 20 Orange Runes 20 Purple Runes 20 Timelost Runes 15 Radium 10 Red Runes 10 Blue Runes 10 Green Runes 2 QDE |
| Habitat L3 * Unlocks L3 modules +4 Defense +1 Range +10% Harvest | 150,000 $RAD 25 Fresh Water 25 Greens |
| Walls L3 Nullifies attacks +3 Citadel Shield | 175 Cardanium 150 Iron 50 Darkwood |
| Defensive Turret L3 +12 Defense | 150 Cardanium 125 Iron 35 Machine Components 25 Radium 1 QDE |
| Mage Tower L3 * Enables L3 Spells +4 Defense +3 Range | 175 Cardanium 25 Prismatic Dust 20 Orange Runes 20 Purple Runes 20 Timelost Runes 10 Red Runes 10 Blue Runes 10 Green Runes |
| Research Module L3 * Enables L3 Research options +300 Research points (per epoch) +15% Research speed | 800 Research Points 350 Copper 175 Gems |
| Resource Processing Facility L3 * Enables L3 Crafting options +20 Machine Components (per epoch) | 60 Cardanium 75 Stone 75 Custodial Nanites 25 Funky Liquid 50 Lightwood |
| Launchpad L3 +3 Range +1 Battle counter (per epoch) | 150 Copper 150 Antigravity Particles 60 Machine Components |
| Storage Module L3 +5 Citadel Inventory Slots | 325 Iron 225 Darkwood |
| Power Module L3 +300 Energy (per epoch) +30 Toxic Waste (per epoch) | 300 Copper 60 Machine Components 15 Radium 1 QDE |
Damage, Rebuild & Deconstruction Costs
Your citadel will take damage without walls, so it is a good idea to build walls first. Your walls will nullify a number of attacks relative to their level (1, 2 or 3). But after that they will be destroyed.
Successful attacks on a terraform with no walls have 10% chance of destroying a random component. If a component is destroyed, it can be rebuilt for 50% of the build costs (for the current level).
You can ‘desconstruct’ a component for 50% refund of the cost of the build.