This article is for the PC version of Stellaris only.
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Technology is a central pillar of any interstellar empire. It has allowed them to reach the stars and it will be what allows them to succeed against other empires.
There are roughly 300 technologies in the game, though these will not all be available to the player in a given play-through. Engineering, Physics and Society technologies are researched separately using different research resources. There is no "tech tree", instead players are presented with a number of different choices of techs to research.
The card system
Stellaris doesn't have a tech tree in the normal sense of the word, instead it presents the player with a quasi-random selection of technologies that may or may not appear later on during a playthrough.
A good analogy for this process is a deck of cards in which each card represents a different technology. As soon as a tech is selected for research, the remaining "cards" are placed back into the deck which is then reshuffled. However, in this "shuffling" some cards are weighted to appear more often than others. This is especially common in the early game where some "cards" are extremely likely to appear as to allow all players to get a fair start. Additionally, an empires' ethos, the leading scientists' traits, the current researched technologies, etc. all factor in into this weighting.
Certain technologies are considered "special" and are marked in a different color so players can to recognize their rarity. These are techs that might only appear once in a playthrough and, as such, should probably always be picked.
After some time it's possible to reach a point where procedurally generated techs get a chance of appearing more and more often after many of the "normal" technologies are successfully researched.
There's also the possibility of having "advanced" techs appearing during the later stages of a game. These are high reward/high risk opportunities that can give an empire a significant advantage in the race to victory but may trigger terrible consequences such as crises. Some advanced techs are dependent on the species' ethos.
Technology is divided into three types: Physics, Society and Engineering.
As a game progresses, the technology choices for each empire will begin to include progressively more advanced and correspondingly more expensive technologies, meaning that building research labs and stations should be a priority. Technology costs also scale with the size of an empire's population, which makes it possible for small empires to maintain technological parity with larger ones.
Each technology is also part of a category, which are independent of the three types. So far the following categories are known:
- Field Manipulation: Bending fundamental forces to our will.
- Industry: Ingenuity and productivity.
- Military Theory
- New Worlds: Colonization protocols and pioneer training.
- Particles: Isolating and utilizing particulate matter and phenomena.
- Voidcraft: Space is the final frontier. To master it, is to master the future.
List of Technologies
These lists are based on incomplete information and may not be accurate.
||Modulated fields allow for increased production and improved energy yield.|
|Global Energy Management||240||
||Load-balancing facilities can greatly improve the stability of local grids and feed excess power back into centralized capacitors.|
|Orbital Energy Conversion||240||
||Advances in solar panel technology could potentially reduce the operating costs of our spaceports. The panels would require an entire spaceport module to generate enough energy, however.|
|Quantum Energy States||900||
|Planetary Power Grid||900||
||A re-engineered and unified grid further reduces energy losses over distance.|
||Energy deflector screens can stop a limited amount of incoming enemy fire before overloading. Their main drawback is that they consume large amounts of power.|
||These updated deflector screens are capable of soaking up even more punishment before they overload.|
|Warp Field Stabilizers||1200||
||Improved stabilization techniques for warp fields will allow our ships to travel farther while expending less energy.|
|Wormhole Containment Fields||2320||
||Nuclear fusion processes generate a great amount of power, but without many of the risks associated with fission power.|
||More powerful than red lasers, these blue variants emit electromagnetic radiation at a wavelength that appears blue or violet to most organics.|
|Cold Fusion Power||900||
||The ability to sustain a fusion reaction at relatively low temperatures will result in a new generation of fusion reactors.|
||Weapons that eject destructive balls of high-energy plasma at targets. These plasma projectiles are extremeley effective at eating through ship armor.|
||Void Clouds use the electrical charges generated by the dense gases that make up most of their core to release bolts of burning plasma. Using the same gas composition together with a specialized conduit allows for powerful lightning weaponry.|
||These new accelerators launch projectiles of high-energy plasma with improved containment fields. This results in less energy leakage as the projectile travels in space towards its target.|
||These sensors have been tuned to look for any gravitational changes in space, such as those produced by the presence of a starship.|
||Powerful sensor arrays that can be added to the structure of orbital spaceports. They provide excellent sensor coverage of the surrounding region of space.'|
||Sensors that deflect the subspace fluctuations left in the wake of travelling starships. Their sensitivity and range is greater than that of a gravitic sensor array.|
||Organizational circuitry rerouting academic fervor.|
||Exploring the mediation of fundamental forces through subatomic particles.|
||The best defense is a good offense.|
|AI-controlled Colony Ships||600||
|Specialized Combat Computers||480||
||Active matrices tuned for specific combat-centric tasks greatly improve engagement efficiency.|
|Applied Quantum Physics||900||
||The seemingly exocit behavior of tiny things can dramatically alter the way we think about bigger things.|
||High-capacity quantum bands dedicated to databank transfers make possible virtually completely synchronous research operations across vast distances.|
|Interlinked Support Systems||1500||
||Three dimensions, inextricable from the fourth.|
||An extremely rare aerosol of exotic particles. It has been deposited on a number of worlds through meteor impacts, but its true origin is a mystery. If ingested by psonically-gifted individuals, Zro acts as a very potent (and addictive) drug that enhances Psi abilities.|
|Engos Vapor Refining||480||
||A naturally occuring stimulant that helps all forms of life adapt and evolve. It can also be used as a very potent conductor for energy weapons.|
||From disparate components do we build a whole greater than the sum of its parts.|
|Doctrine: Space Combat||240||
|Doctrine: Fleet Support||360||
|Doctrine: Reactive Formations||480||
||The advent of accurate pain emulators will at long last bridge the divide between the virtual and the real.|
|Doctrine: Armada Battle Formation||[calc]||
|Dangerous Wildlife Removal||360||
|Mountain Range Removal||360||
|New Worlds Protocol||360||
|Noxious Swamp Removal||360||
|Toxic Kelp Removal||360||
||Planetary edicts are temporary planetary modifiers that can be activated by spending Influence.|
||Ancient warring tribes, historic nations in conflict, now unified in empire. We must not, will not, crumble.|
||The progress we made calls for a new, nimbler form of administration that may aid rather than hinder us in our pursuits.|
||Reduces 'Cede Planet' and 'Cede Military Station' war demand cost.|
||Advancing our understanding of interactions with – and manipulations of – the xeno is a necessary step in forming more permanent interstellar alliances.|
|Artificial Moral Codes||1200||
||It is circumstance that dictate what is moral. Define the circumstanes, and ethics is like clay in your hands.|
|The Living State||1200||
|Proclamation Broadcasts V||[?]||
|Regenerative Hull Tissue||3360||
||New fracking techniques will allow us to tap into previously unattainable pockets of geothermal resources deep beneath the planet's crust.|
||Optimal processing of mined materials have allowed us to reach new levels of efficiency.|
||Wearing a powered exoskeleton suit augments the user's strength and speed. The military applications are obvious, but it will also increase labor efficiency.|
||Advanced instrumentation allows for the study and practical application of physical systems at nanometric scales.|
||The Betharian minerals appear to have originated from singular source, but were scattered across the galaxy millennia ago. The minerals are most often encountered as pebble-sized clusters, and are highly flammable.|
|Deep Core Mining||900||
||These massive drills are needed to access the rich mineral deposits that can often be found close to a planet's core.|
||The production and understanding of supersolids are of immeasurable value to any and every space-age civilization.|
||These electromagnetic projectile launchers use magnets to accelerate armor-piercing rounds towards targets at high speeds.|
||Reinforced nanocomposite hull plating can provide an extra layer of protection that could be the difference between life and death in a combat situation.|
||Establishing succesful Garanthium quarries poses unique challenges, as the ultra-hard quality of the ore makes it as difficult to mine as it is attractive.|
||A combination of different metals and ceramics that result in a strong armor without sacrificing flexibility.|
|Interplanetary Expeditionary Forces||240||
||The invasion of another world is a staggering enterprise. There are immense logistical challenges that must be overcome before we can muster our first interplanetary armies.|
|Deep Space Outposts||240||
||This will enable the construction of defensive deep space platforms far from the gravity wells of a planetary body.|
||Enhancements to artificial gravity and life support systems allow for further expansion of orbital facilities.|
|Deep Space Stations||900||
||New construction methods will allow for the construction of even larger military stations in the depths of space.|
||State-of-the-art orbital construction techniques result in spaceports the size of major planet side cities.|
||These manned, short-range strike craft are launched from a mothership and rely on their speed and small size to survive long enough to punch through enemy defenses.|
||The creation of a dedicated naval engineering corps will greatly benefit the construction of deep space defense platforms, decreasing building costs and increasing durability.|
||Expanded dry-docks allow for the construction of Cruiser-class military vessels.|
||Construction in space presents our engineers with new design challenges that must be solved before we can build orbital stations above other worlds.|
||These electric thrusters use beams of ions to generate thrust without the need for propellant.|
||Space-to-space missiles equipped with high-yield nuclear warheads. Although based on old pre-space technology, these crude fire-and-forget weapons can be surprisingly effective at range.|
|Space Marine Corps||240||
||These updated space-to-space missiles have more powerful fusion warheads and improved flight performance.|
||An advanced from of electric propulsion, plasma thrusters afford ships greater sublight speeds and maneuverability.|
||Space torpedoes are essentially very large, slow moving missiles. They are equipped with more powerful warheads and shield modulators that let them slip unmolested through energy screens.|
||These highly advanced fusion-powered thrusters provide ships with unmatched maneuverability and speed under sublight conditions.|