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No change in size, 5 months ago
no change in research mechanics since 2.5
''Technology'' in Stellaris is divided into 3 research areas with each area corresponding with one of the research resources: {{iconify|Engineering|21px}}, {{iconify|Physics|21px}} and {{iconify|Society|21px}}. Additionally, each of the ~300 techs belongs to one of 12 subcategories divided between the areas (most appearing pre-dominantly in one area though not exclusively).
== Research areas & fields ==
[[File:UI tech.png|right|thumb|400px|Technology interface. Every slot here can have one research project active at a time and every research area has its own slot.]]
There are three different main ''research areas'' in-game, with each area corresponding with one of the research resources. Additionally, each research area has multiple subcategories, for a total of 12 such subcategories, and every tech belongs to one of these subcategories.
== The card system ==
[[File:Card system.png|thumb|400px|The "card" system. Every time a research project is to be initiated, the game will draw a hand of cards like this one from which the player then can pick one technology to research.]]
Although the underlying technology system is based on the familiar ''tech tree'' structure, it does away with its standard interaction/presentation in favor of the ''card shuffle'' approach. This injects a semi-random element into research, making it somewhat less predictable as well as more non-linear.
=== Research alternatives ===
Each card hand drawn will contain 3 research alternatives. This may, however, be further increased by 1 for each of the following:
* {{icon|edict}} Scientific Revolution unity ambition
== Research speed ==
''Research speed'' represents a given expertise in a particular research area or field leading to shortened research time of related technologies.
== Technology cost ==
As a game progresses, research option choices will begin to include progressively more advanced and correspondingly more expensive technologies.
== Research progress ==
In general, ''research time'' can be summarized as the following formula:
Halfop, ck3beta

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