Skip to main content

Xterium Defense

The Complete Xterium Defense Guide: Shield Domes and Turrets (Guardian, Panzer, Hammer, Achilles) in the light, medium, and heavy classes, as well as special mounts.

18
structures
5
groups

Defense is a passive defense mechanism for the planet and the moon in Xterium. It does not fly: turrets and domes engage the enemy fleet when it attacks.

It is divided into shield domes (which absorb damage) and four types of turrets—Guard, Panzer, Hammer, and Achilles—in light (LD), medium (MD), and heavy (HD) classes, plus special installations (Valkyrie, Prometheus, Armageddon).

The key to defense is knowing what counters what: each turret type is effective against a specific ship type (see the chart below). LD / MD / HD — weight class: light / medium / heavy.

For details on each structure, open its card.

What beats what: turret and ship

Defense does not have a “rock-paper-scissors” cycle like the fleet. Here there is a direct counter-link: each turret type hits its own ship type. Data from the game's combat tables.

A turret's class boosts its effect against its own ship class: LD — against light fleet, MD — medium, HD — heavy. Special installations (Valkyrie, Prometheus, Armageddon) are effective against special ships (Hunter, Cerberus, Titan). Domes don't attack — they absorb damage.

Light Defense (LD)

· 4 structures
Light-class turrets: Guardian, Panzer, Hammer, Achilles. Effective against light ships.

Medium defense (MD)

· 4 structures
Mid-tier turrets (MD) — against a mid-tier fleet.
Guardian MD
Guardian MD
With the invention of high-temperature superconductors, the issue of devices operating on the principle of a Gauss gun became actual. The Sentinel DM gun was originally designed as a gauss cannon with a kinetic projectile. But numerous experiments and comparisons of firepower with two-chamber systems were still not in favor of laser ammunition. The project was first frozen, and later changed and improved. As a result of many years of refinements and improvements, the Sentinel DM Cannon has been repeatedly strengthened in terms of protection systems and firepower, and became the first in a series of mid-range anti-tank guns
Panzer MD
Panzer MD
The Panzer DM ion cannon is a very effective anti-tank weapon. It works best on low-flying targets. In a layered multi-layer defense system, it is indispensable as a means of anti-aircraft defense of the second division. Not bad proved itself in local conflicts. Particularly effective against destroyers FL-2, which form the backbone of many fleets
Hammer MD
Hammer MD
The DM Hammer plasma cannon is named for a reason. Just as the god Thor cut through his enemies with his hammer, the Hammer DM weapon crushes the armor of enemy fleets. And the protective screens of the ships turns into an electric colander. Fine-tuned plasma warheads are combined with highly effective targeting in this PKO system. This is how a discharge, amazing in its power and direction, appears
Achille MD
Achille MD
The second-class anti-siege gun Achilles DM was designed specifically to deal with the Taran FM bombers. This is the only mobile PKO in the middle class. Possessing an out-of-orbit sanitation weapon, these systems easily hit bombers even on approach to the planet. Themselves remain inaccessible to guided bombs. System deployment time between mobile and combat mode - no more than 30 seconds

Heavy Defense (HD)

· 4 structures
Heavy-class turrets (HD) — against heavy fleet units.
Guardian HD
Guardian HD
The beginning of the introduction of two-chamber systems was the Strazh DL gun. At the junction of laser technologies honed to perfection and the beginning of the development of the most powerful gravitational weapons, the PKO system was created. She absorbed two different potentials, combining them into a destructive, hitherto unseen power
Panzer HD
Panzer HD
The Panzer DH is the most powerful heavy-class PKO weapon. Equipped with two types of generators, heavy armor of the crystalloid structure and a backup protection system. Panzer DH not only hits the enemy fleet with a salvo fire system. It is also capable of disorienting ships on-board electronics with powerful radiation, disrupting navigation and life support systems
Hammer HD
Hammer HD
If you dont believe in the genius of human thought, take a look at the Battleship FH. If you think humanity cant transcend itself, look at the DH Hammer. So they say about the complex, which has absorbed all the best that has been created in the systems of PKO in the entire history of mankind. The DH Hammer is a complex modular complex with a serious protection system and unsurpassed striking power. It is equipped with two of the most destructive types of weapons: the PL-49 heavy plasma launcher and the latest GR-10 heavy gravity gun. This is the only weapon capable of effectively resisting armadas Battleship FH.
Achille HD
Achille HD
The Achilles system is so huge that a factory is being built specifically for it. Giant monolithic slabs are mounted, as a rule, in rock on the shores of vast oceans. If the planet is uninhabited, resort to artificial storage. The cooling system is built separately: deep under water. The powerful gravity cannon is backed up by two side laser turrets. According to the characteristics, "Achilles" is an order of magnitude superior to all analogues. With the advent of this model, many experts began to talk about a new era in the design of super-powerful air defense systems.

Special Installations

· 3 structures
Valkyrie, Prometheus, Armageddon — against special ships.
Valkyrie
Valkyrie
Prime Defense and the fleet were built according to the plans of the Ancients, a mysterious civilization that existed at the dawn of the Alpha Ledone Era, around the second or third quarter of the Minor Centarion cosmic cycle. It is still not known for certain where this civilization came from and where it disappeared. But her legacy had a huge impact on the development of mankind. The technology of the Ancients is based on the complex process of megascalping - extracting particles from the halo of dark matter. Therefore, in the production of models of ships and means of PKO, it is impossible to use ordinary resources
Prometheus
Prometheus
Prime Defense and the fleet were built according to the plans of the Ancients, a mysterious civilization that existed at the dawn of the Alpha Ledone Era, around the second or third quarter of the Minor Centarion cosmic cycle. It is still not known for certain where this civilization came from and where it disappeared. But her legacy had a huge impact on the development of mankind. The technology of the Ancients is based on the complex process of megascalping - extracting particles from the halo of dark matter. Therefore, it is not possible to use ordinary resources in the production of ship models and PKO facilities.
Armageddon
Armageddon
Prime Defense and the fleet were built according to the plans of the Ancients, a mysterious civilization that existed at the dawn of the Alpha Ledone Era, around the second or third quarter of the Minor Centarion cosmic cycle. It is still not known for certain where this civilization came from and where it disappeared. But her legacy had a huge impact on the development of mankind. The technology of the Ancients is based on the complex process of megascalping - extracting particles from the halo of dark matter. Therefore, it is not possible to use ordinary resources in the production of ship models and PKO facilities.

Summary table of all structures

Summary table: all structures with stats
Name Class Attack Armor Shield Weapon
Small Dome Shield Domes does not attack 150 3 000
Medium Dome Shield Domes does not attack 750 15 000
Giant Dome Shield Domes does not attack 7 500 150 000
Guardian LD Light Defense (LD) 14 100 12 Laser
Panzer LD Light Defense (LD) 12 100 20 Ion
Hammer LD Light Defense (LD) 16 100 16 Plasma
Achille LD Light Defense (LD) 18 100 12 Laser
Guardian MD Medium defense (MD) 70 500 60 Laser
Panzer MD Medium defense (MD) 60 500 100 Ion
Hammer MD Medium defense (MD) 80 500 80 Plasma
Achille MD Medium defense (MD) 90 500 60 Ion
Guardian HD Heavy Defense (HD) 700 5 000 600 Graviton 70% · Laser 30%
Panzer HD Heavy Defense (HD) 600 5 000 1 000 Graviton 70% · Ion 30%
Hammer HD Heavy Defense (HD) 800 5 000 800 Graviton 70% · Plasma 30%
Achille HD Heavy Defense (HD) 900 5 000 600 Graviton 70% · Plasma 30%
Valkyrie Special Installations 70 540 120 Laser 50% · Ion 50%
Prometheus Special Installations 350 2 700 560 Ion 50% · Plasma 50%
Armageddon Special Installations 3 500 27 000 5 600 Graviton 50% · Plasma 50%

Questions and answers

How many structures are there in Xterium in total?
The game has 18 structures. They are split into 5 groups: Shield Domes — 3, Light Defense (LD) — 4, Medium defense (MD) — 4, Heavy Defense (HD) — 4, Special Installations — 3.
Which turret is effective against which ship in Xterium?
Each turret type hits its own ship type: Guardian — against Cruisers, Panzer — against Destroyers, Hammer — against Battleships, Achilles — against Rams. The turret class (LD/MD/HD) boosts the effect against light/medium/heavy fleet. Special installations — against special ships.
What do LD, MD, HD mean for defense?
It is the weight class of the turret: LD — light, MD — medium, HD — heavy. A single turret type (for example, the Guardian) exists in all three classes.
What are shield domes for?
Domes (Small, Medium, Large) do not attack — they are passive protection: they absorb the damage of an enemy attack. A large dome's shield reaches 150,000.
Which defense structure has the highest attack?
The highest base attack belongs to the structure “Armageddon” — 3 500. This is the base value without bonuses.

The Xterium knowledge base is maintained by the project team; data is verified against the game engine. About the project and team →

Data updated: 2026-05-22 · Game version: 2.12.7