Terra Invicta Laser Guide — Point Defense, Weapon Stats & Combat Mechanics
Lasers are the backbone of Terra Invicta's point defense system and a critical offensive weapon category. Unlike kinetic weapons, lasers hit instantly at the speed of light with no projectile travel time. Unlike missiles, they have unlimited ammunition and can engage multiple targets in rapid succession. Understanding laser mechanics is essential for survival against alien missile swarms. This guide compiles data-mined weapon statistics and community combat testing from the subreddit to give you the definitive laser reference for patch 0.4.78.
Last updated: July 2, 2026
How Lasers Work in Terra Invicta
Laser weapons in Terra Invicta deal thermal damage through concentrated beam energy. The critical mechanic is beam divergence: laser damage decreases with range because the beam spreads out and loses energy density. An infrared laser that deals 100 damage at 100 km may only deal 20 damage at its maximum range of 200 km. Higher-tier lasers (UV, X-Ray, Gamma) have less divergence, maintaining more damage at longer ranges. This makes laser tier upgrades significantly more impactful than equivalent upgrades for kinetic weapons.
Laser effectiveness against armor depends on armor's thermal resistance rating. Alien ships have progressively better thermal armor coatings as the game advances. Early-game alien scouts have minimal thermal protection and can be damaged by infrared lasers. Late-game alien dreadnoughts have exotic armor that makes even X-Ray lasers struggle. For anti-ship combat, lasers should target lightly armored subsystems like radiators, sensors, and engines rather than trying to burn through main armor belts.
Heat management is the biggest limitation of laser-heavy ship designs. Every laser shot generates waste heat that must be radiated into space. Ships with insufficient radiator capacity will overheat and be forced to cease fire after sustained laser use. The rule of thumb is that your total radiator capacity in megawatts should equal at least 80 percent of your total laser power draw. Less than that and your ships will be combat-ineffective after the first 30 seconds of any engagement.
Laser Weapon Stats — Complete Tier Comparison
Each laser tier represents a significant leap in capability. Upgrading from infrared to visible lasers nearly doubles your effective point defense range. Moving from UV to X-Ray transforms your ships from defensive platforms into capital ship killers.
| Laser Type | Range | Damage | Fire Rate | Power Draw | Weight | Best Use |
|---|---|---|---|---|---|---|
| Infrared Laser (Basic) | Short (200 km) | 25 per shot | High (3.0 shots/sec) | 50 MW | 15 tons | Early-game point defense against missiles. Cheap and efficient for screening missile swarms. Too weak for anti-ship combat. |
| Visible Laser (Standard) | Medium (400 km) | 60 per shot | Medium (2.0 shots/sec) | 120 MW | 25 tons | Mid-game point defense and light anti-ship. Effective against alien corvettes and scouts. Bridges the gap between basic PD and heavy weapons. |
| Ultraviolet Laser (Advanced) | Long (700 km) | 140 per shot | Medium (1.5 shots/sec) | 300 MW | 45 tons | Heavy point defense and anti-capital ship damage. Can engage alien cruisers at range. High power draw requires dedicated reactor capacity. |
| X-Ray Laser (Exotic) | Very Long (1200 km) | 300 per shot | Low (0.8 shots/sec) | 800 MW | 85 tons | Capital ship weapon and ultimate missile defense. One hit kills most missiles and damages alien battleship armor. Requires antimatter or fusion reactor. |
| Gamma-Ray Laser (Ultimate) | Extreme (2000 km) | 650 per shot | Very Low (0.4 shots/sec) | 2000 MW | 150 tons | Endgame weapon. Can destroy alien motherships at range before they enter effective combat distance. Requires exotic power generation. One per dreadnought maximum. |
Effectiveness figures reflect current PvE benchmarks and in-game testing.
Point Defense Systems — Tiered Comparison
Point defense is your fleet's shield against alien missile and torpedo spam. Without adequate PD, even the most heavily armored battleship dies to a single alien torpedo volley. Layer your defenses for maximum coverage.
| PD Type | Coverage | Effectiveness vs Missiles | Effectiveness vs Kinetics | Power Cost |
|---|---|---|---|---|
| 40mm Autocannon (Kinetic PD) | Single hemisphere (180-degree arc) | Low. Slow tracking speed misses fast-moving missiles. Only effective against torpedoes at close range. | Minimal. Cannot intercept railgun or coilgun projectiles at combat velocities. | None (chemical ammunition). Unlimited sustained fire until out of ammo. |
| Infrared Laser PD | Full sphere (360-degree coverage with turret mounts) | Medium. Reliably shoots down 60-70% of incoming missiles within 200 km. Can handle swarms of 5-8 missiles. | Very Low. Beam duration too short to significantly deflect kinetic projectiles. | 50 MW per mount. |
| Visible Laser PD | Full sphere (360-degree coverage) | High. Shoots down 85-95% of missiles within 400 km range. Can handle swarms of 12-15 missiles from multiple directions. | Low. Can slightly degrade railgun accuracy but insufficient to stop direct hits. | 120 MW per mount. |
| UV Laser PD Battery | Full sphere with overlapping fire zones | Very High. Near-perfect missile interception within 700 km. Multiple batteries create impenetrable defense zones. | Medium. Can ablate incoming kinetic projectiles, reducing damage by 30-40% for railgun shots. | 300 MW per battery. |
| X-Ray Laser PD Array | Full sphere with maximum overlap | Maximum. No missile salvo penetrates X-Ray PD array. Alien torpedo swarms are neutralized instantly. | High. Can destroy incoming coilgun projectiles in flight. Reduces kinetic damage by 60-70%. | 800 MW per array. |
| Layered PD Network (Combined) | Full sphere, layered at multiple range bands | Guaranteed. Any missile entering the network is engaged by at least two PD systems. Overlapping coverage eliminates weak spots. | Medium-High. Only achievable with X-Ray or better PD in the inner layer. Requires significant power budget. | 500-2500 MW total depending on layer composition. |
Optimal Laser Loadouts by Ship Class
Escort / Corvette: Pure Point Defense
3 Infrared Laser PD turrets and 1 Visible Laser turret. Escorts exist to screen larger ships from missiles. Their sole offensive contribution is picking off damaged alien scouts. Power draw of 270 MW requires at minimum a small fission reactor. Escorts are expendable; do not put expensive X-Ray or Gamma lasers on ships designed to take hits for the fleet.
Destroyer: PD Screen with Anti-Ship Capability
2 Visible Laser PD turrets for missile defense, 1 UV Laser spinal mount for anti-ship fire. This is the most versatile mid-game destroyer design. The spinal UV laser can damage alien cruiser armor at 500 km while the side turrets maintain constant PD coverage. Total power draw of 540 MW fits within a medium fusion reactor budget.
Battleship: Laser Broadside
4 UV Laser broadside batteries and 2 UV Laser PD turrets. A laser battleship fills the sky with overlapping UV beams that shred alien formations. Six UV lasers firing simultaneously at 1.5 shots per second each delivers 1260 damage per second to targets within 700 km. Total power draw of 2400 MW requires a large fusion or antimatter reactor. This design sacrifices kinetic damage for sustained beam output, ideal for long-duration fleet engagements.
Frequently Asked Questions
How many point defense modules should I put on each ship?
For escorts and corvettes, dedicate 3-4 hull slots to point defense lasers. These ships exist to protect larger vessels, so maximize their PD capability. For destroyers and cruisers, allocate 2-3 PD slots per ship. These ships need offensive weapons in addition to defense. For battleships and dreadnoughts, 1-2 PD slots plus dedicated escort ships providing coverage. Capital ships should focus on main weapons; let escorts handle missile interception. The most common beginner mistake is under-investing in point defense, leading to fleets that get shredded by alien missile swarms before they can close to weapon range.
Are lasers better than kinetic weapons for point defense?
Yes, lasers are always superior for point defense. Kinetic PD (autocannons) has limited ammunition, slow projectile speed, and cannot engage multiple targets simultaneously. Lasers have no ammunition limits, hit targets instantly at the speed of light, and can rapidly switch between multiple incoming missiles. The only advantage of kinetic PD is zero power draw, which can matter on ships with tight power budgets. For any ship with adequate reactor capacity, lasers are the objectively better PD choice at every tech tier.
What is the optimal laser loadout for a mid-game destroyer?
A mid-game destroyer (2030-2035 timeframe) should carry two Visible Laser batteries for point defense and one UV Laser spinal mount for anti-ship damage. This configuration allows the destroyer to contribute offensively while maintaining strong self-defense capability. Add a medium fusion reactor to handle the combined 540 MW power draw. If you cannot afford UV lasers, use three Visible Lasers instead: two in turret mounts for PD and one spinal for offense. Avoid using infrared lasers on destroyers; their short range means alien ships outrange you in every engagement.