Resources

Resources are the economic foundation of every empire in Per Regna. They are required for constructing buildings, producing fleets, researching technologies, and expanding planetary infrastructure.

Each colony produces resources through specialized production buildings, which extract materials from the planetary environment. Resource production scales with building upgrades and planetary conditions such as temperature and surface composition (see Colonization).

Primary resources

The economy of Per Regna is built around several primary resource types. These materials are extracted through planetary industry and are consumed by almost every gameplay system including Buildings, Fleet and Ships, and Research.

Steel

Steel is the most widely used industrial material in the galaxy. It forms the structural backbone of ships, buildings, and defensive installations.

Steel is primarily used for:

• constructing buildings
• producing fleets
• building defensive structures
• upgrading infrastructure

Steel production is handled by the Steel Mine, which extracts metallic ores from planetary crust layers. Because steel is required in nearly every construction project, most colonies maintain a strong steel production base.

Quartz

Quartz is a refined crystalline material used in advanced electronics, computing systems, and energy distribution networks.

Quartz is essential for:

• research technologies
• advanced building upgrades
• sensor and scanning equipment
• navigation and propulsion systems

Quartz is extracted through the Quartz Mine, which processes crystalline deposits beneath the planetary surface. As technological development accelerates, quartz becomes increasingly important for sustaining research progress.

Gas

Gas represents volatile atmospheric elements used in energy generation, propulsion systems, and chemical processing.

Gas is required for:

• propulsion systems
• fleet fuel
• reactor systems
• advanced industry

Gas is harvested using the Gas Extractor, which collects and refines atmospheric gases. Gas extraction efficiency can be influenced by planetary temperature, making some planets particularly suitable for large-scale gas production (see Colonization).

Advanced resources

As civilizations advance technologically, additional materials become necessary for late-game industry and infrastructure. These advanced resources typically unlock in higher realms.

Iridium

Iridium is a dense rare metal used in high-strength alloys and advanced ship construction.

Iridium is commonly required for:

• advanced ship hulls
• heavy defensive structures
• large-scale infrastructure

Iridium production is handled by the Iridium Refinery, which processes rare metallic compounds. Iridium becomes increasingly important as players transition into mid and late-game technologies.

Silicium

Silicium is a highly refined semiconductor material used in computing, sensors, and quantum processing.

Silicium supports many high-technology systems including:

• advanced research facilities
• sensor networks
• experimental propulsion technologies

Silicium is extracted through the Silicium Extractor. Because it supports complex technological systems, silicium demand increases significantly in higher realms.

Elerium

Elerium is an extremely rare high-energy material used in experimental energy systems and advanced scientific projects.

It is primarily required for:

• exotic energy generation
• late-game research technologies
• advanced megastructures

Elerium is produced using the Elerium Synthesizer, an advanced facility that replicates the extreme conditions needed to generate this material. Elerium represents one of the most valuable resources in the late stages of empire development.

Energy

Energy is required to power industrial infrastructure and production facilities. Unlike other resources, energy is not stored but generated continuously through energy production buildings.

Energy is produced primarily by:

• Solar Plant
• Fusion Reactor
• Elerium Reactor

If a colony lacks sufficient energy, production efficiency across resource extractors may decrease. Maintaining stable energy output is therefore critical for sustaining high industrial productivity.

How production scales

Resource production depends on several factors:

• production building level
• planetary environment
• infrastructure bonuses
• research improvements

Production increases as extractor buildings are upgraded. However, the growth curve of production follows several phases.

Resource buildings increase output with each level, but the rate of growth changes as buildings become more advanced. To help players understand these mechanics, the game provides a Production Effects Calculator, which estimates how production scales across different levels.

Production growth phases

General production behavior follows three phases. The level ranges below reflect the current live production configuration.

Early Development (Levels 1–14)

Production increases steadily with each upgrade, growing by +18% per level (a ×1.18 multiplier).

These levels provide the foundational economy for a colony and are relatively inexpensive to upgrade.

Industrial Expansion (Levels 15–54)

Starting at level 15, production growth accelerates. The per-level growth rate increases by +2.5% every 3 levels, building up toward a maximum growth rate of ×1.5 (+50% per level).

At these levels colonies often become fully specialized economic centers, producing large quantities of resources. Because of this acceleration, upgrading production buildings in this range can greatly improve an empire's overall economy.

Late Industrial Stage (Level 55+)

Beyond level 55 production gains begin to slow due to soft caps. Soft caps represent the physical limitations of planetary resource extraction.

From the peak growth rate of ×1.5, the per-level growth rate decreases by 0.01 every level, settling toward a floor of ×1.2 (+20% per level). While production continues to increase, each additional level provides smaller relative improvements compared to earlier stages.

Players typically rely on:

• additional colonies
• research bonuses
• specialized planets

to further expand production beyond this stage.

Production formula values

The following values drive the production growth curve described above. They are the current live configuration.

Phase	Setting	Value	Meaning
Base	speedPerLevelMultiplier	1.18	Base growth of +18% per level (Levels 1–14).
Acceleration	tierStartLevel	15	Level at which accelerated growth begins.
Acceleration	tierSize	3	Number of levels per acceleration tier.
Acceleration	tierIncrement	0.025	Growth-rate increase (+2.5%) added each tier.
Acceleration	maxGrowthRate	1.5	Maximum per-level growth rate (×1.5 / +50%).
Decay	decayStartLevel	55	Level at which the soft cap (decay) begins.
Decay	decayTierSize	1	Number of levels per decay tier.
Decay	decayDecrement	0.01	Growth-rate reduction applied each decay tier.
Decay	decayMinRate	1.2	Minimum per-level growth rate (×1.2 / +20%).

Resource management

Efficient resource management is essential for maintaining a strong empire. Successful commanders balance several economic priorities:

• Industrial Growth — upgrading resource buildings and expanding production.
• Fleet Production — allocating resources to military shipyards.
• Research Development — investing in technologies that unlock new capabilities.
• Infrastructure Expansion — developing new colonies and supporting structures.

Balancing these competing demands is a central strategic challenge in Per Regna.