Invention: Difference between revisions

=== Mandatory Items ===

# Blueprint copy

#* Not all items have T2 versions. To check this, open the Information window for a T1 item and look at the "Variations" tab. If a T2 version is shown there, then a T1 BPC for that item can be used to create a T2 BPC.

# Datacores

[[File:Selecting a decryptor.png|right|500px|thumb|Selecting a decryptor]]

# Decryptors (recommended for big expensive invention jobs, like T2 ships)

#* Add the values from the decryptor to the base values to calculate the final outcome of the T2 BPC.

#* The different types of decryptors are:

#** Accelerant Decryptor

== The invention process ==

Select the relevant BPC in the Industry window, and choose Invention on the activity list. The resulting window will tell you your invention chance, taking into account your skills and any selected optional items.

Once the job is complete and delivered, you do not receive any explicit notification if your job was successful.  The only indication of success is that the 'Outcome' box in the Industry window actually contains your T2 BPC and an animated blue highlight - you will be able to find your new T2 BPO in the list of blueprints.

You can also see a summary of the success or failure of each job in the job listing after delivery.

=== T2 BPCs ===

Base Chance:

* All Frigates and Destroyers have a base chance of 30%

* Cruisers, Battlecruisers, Mining Barges, Industrials, and intact Ancient Relics have a base chance of 26%

The effect of skills is equivalent to 3.333% per science skill level and 2.5% per encryption skill level.

Note that the following factors have '''n'''o impact on the probability of invention success, nor the quality or number of runs on the output BPC:

* How attractive, charming or brilliant you are  :-)

===Helpful guidelines===

* Decryptors can virtually guarantee success, but can also be very expensive: in general, use the expensive ones only for big items like Tech II ships.

* 'Symmetry' and 'Augmentation' type decryptors are often cheap, and add +2 or +9 (the latter at the cost of a lower invention chance) runs to the resulting BPC, so they can be very worthwhile (especially for ships and rigs, which only give 1-run BPCs by default) in driving down invention costs per manufacturing run, as well as increasing T2 manufacturing throughput by loosening the invention bottleneck.

=== Useful links ===

Here are some more links (caution: may be out of date since recent invention changes from CCP, especially the success chance calculators):

* [http://games.chruker.dk/eve_online/invention_chance.php Invention Chance Calculator]

* This solution, naturally, presented some new problems. The production of T2 items was reserved to a relatively small number of experienced EVE players who were lucky enough to get one of the BPOs.  This allowed them to control the prices completely, making T2 items dreadfully expensive.  Also, there were rumors abound that CCP was rigging the lottery to favor certain players or corporations, making it unfair.   

*So, in their now smarter infinite wisdom, CCP developed the invention process with the Revelations expansion in 2006, which allows any EVE player to produce T2 blueprint copies, after a significant investment in skills, materials, and equipment.  The invention process produces limited-run T2 BPCs, but with a chance of failure, thus making T2 item production more difficult, but still attractive enough to warrant investment by players.  Since BPCs produce limited runs of items, unlike BPOs, the invention process also keeps T2 item production at a much more intensive but more limited level than T1 production.

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