Invention

The Recent EVE Update "Phoebe" (Nov 4th) has introduced drastic changes to the invention process, and some of the information in this guide may no longer be accurate. Updating of this page is under way, but feel free to contribute changes as needed.

Invention is the means by which you produce blueprint copies for Tech 2 items and ships in EVE, which can then be sold on the market, or (more popularly) be used to manufacture those items for sale or personal use in the game.

A player using the invention process takes a blueprint copy (BPC) for a Tech 1 item, adds certain specialized equipment, and attempts to create a BPC for a corresponding Tech 2 item. Although it sounds simple, invention can be very expensive and difficult to do successfully.

The (hopefully) created BPC will have a single run on a ship BPC, and 10 runs on everything else. It will have ME -2% and TE -4%. These values are regardless of those on the input T1 BPC. The Runs, ME and TE levels on the created BPC can be adjusted using decryptors (see optional items below).

For a quick history of Tech II manufacturing, see the section at the bottom of this page.

Skills Required

You need to train several different types of skills in order to perform the invention process:

• Basic Science and Engineering skills - Almost all of the invention processes require the following skills:
  • Mechanics (1x) V
  • Power Grid Management (1x) V
  • CPU Management (1x) V

• There are four racial encryption methods, and one sleeper encryption method skills. Every T2 item invention requires a specific one.
  • Amarr Encryption Methods (5x)
  • Caldari Encryption Methods (5x)
  • Gallente Encryption Methods (5x)
  • Minmatar Encryption Methods (5x)
  • Sleeper Encryption Methods (4x)

Each T2 item is associated with one of racial encryption methods, while Sleeper Encryption Methods is required for inventing T3 hulls and subsystems.

Each item also has two advanced science skills associated with it. The advanced science skills are:

• [[Skills:Amarrian Starship Engineering]] (Amarrian Starship Engineering)
• Caldari Starship Engineering (5x)
• [[Skills:Gallentean Starship Engineering]] (Gallentean Starship Engineering)
• Minmatar Starship Engineering (5x)
• Electromagnetic Physics (5x)
• Electronic Engineering (5x)
• Graviton Physics (5x)
• High Energy Physics (5x)
• Hydromagnetic Physics (5x)
• Laser Physics (5x)
• Mechanical Engineering (5x)
• Molecular Engineering (5x)
• Nanite Engineering (5x)
• Nuclear Physics (5x)
• Plasma Physics (5x)
• Quantum Physics (5x)
• Rocket Science (5x)

An inventor must have the proper encryption method skill and the two science skills trained, as required for each item, in order to start an Invention job. Higher skill levels of the encryption methods and science skills lead to a better chance of invention. In order to see which skills are required, look in the Invention tab in a blueprint for any Tech I item.

For example, this Scourge Rocket Blueprint (see right) requires:

• Rocket Science I
  • Mechanics V
  • Science V
• Electronic Engineering I
  • Science V
  • CPU Management V
• Caldari Encryption Methods I
  • Hacking II
    • Electronics Upgrades III
      • CPU Management II
      • Power Grid Management II
    • Science III

You should train the encryption method skills to at least level 3, and the science skills at least to level 4, to have a good chance of invention success.

Use one of these handy calculators to work out your invention chance using different combinations of skills & optional items:

• http://games.chruker.dk/eve_online/invention_chance.php
• http://www.eve-cost.eu/invention
• http://www.jitonomic.com/Invention/

Other Related Skills

Laboratory Operation and Advanced Laboratory Operation will govern how many concurrent science jobs you can perform. Scientific Networking will govern from how many jumps away you can start science jobs.

Worth mentioning here, but completely useless to invention, are four further skills that are not used at all in invention. These are:

• Sleeper Technology (5x)
• Takmahl Technology (5x)
• Talocan Technology (5x)
• Yan Jung Technology (5x)

They are used exclusively in the manufacture of storyline modules, which are obtainable as BPCs from COSMOS missions. Note that the Sleeper Technology skill, despite its name, is not used for T3 production - you want Sleeper Encryption Methods (4x) for T3 production.

Items required

There are 3 mandatory items and 2 optional items needed for invention. To find out which items are required, look in the Invention tab in a blueprint for any Tech I item, or load the blueprint into the Industry window and choose Invention.

Mandatory Items

1. Blueprint copy
   • You must have a T1 blueprint copy (BPC) of the T2 item you wish to create. Whether the invention job is successful or not, this BPC will be returned to you with one fewer runs remaining on it. If it only has one run remaining, it will be consumed.
   • The ME, TE and Runs Remaining on the input BPC are irrelevant.
2. Datacores
   • Each invention job will require two types of datacores. The number of datacores needed depends on the size of the object created. Small modules only require one datacore of each type while battleships require 32 of each type.
   • Datacores are primarily obtained through Factional Warfare loyalty point stores. They can also be 'farmed' from Research agents, although much less effectively, whilst some datacores can be found in exploration sites. However obtained, they tend to end up on the market, in the Manufacture & Research > Research Equipment > Datacores tab.
   • Whether the invention job is successful or not, these datacores will be consumed.

Data Interfaces have been removed in Phoebe.

Optional Items

Selecting a decryptor

1. Decryptors (recommended for big expensive invention jobs, like T2 ships)
   • Decryptors are an optional item that can be added to the invention process. Decryptors affect the invention chance of the process as well as the material efficiency, time efficiency, and number of runs of the created T2 BPC. Decryptors will be consumed during the Invention process, successful or not.
   • Add the values from the decryptor to the base values to calculate the final outcome of the T2 BPC.
   • Excellent guide to decryptors: http://eve-prosper.blogspot.com/2013/07/everything-you-never-wanted-to-know.html NOTE: pre-Crius guide, use with caution
   • Note that with Phoebe, Decrytors have been consolidated. There are no racial decryptors anymore. The different types of decryptors are:
     • Accelerant Decryptor
     • Attainment Decryptor
     • Augmentation Decryptor
     • Parity Decryptor
     • Process Decryptor
     • Symmetry Decryptor
     • Optimized Attainment Decryptor
     • Optimized Augmentation Decryptor

Use one of these handy calculators to work out your invention chance using different combinations of skills & optional items:

• http://games.chruker.dk/eve_online/invention_chance.php
• http://www.eve-cost.eu/invention
• http://www.jitonomic.com/Invention/
• Eve Isk-Per-hour

The invention process

Gather your BPC, all mandatory items and any optional items you desire to use in a station with invention facilities, or in a Design Laboratory at a POS. The Design Laboratory also has a 50% reduction in the time required on invention, which is highly useful.

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.

The optional items can be selected using the boxes on the left hand side of the Industry UI. All possible items will be listed, but items not available for use (i.e. not found in the input material location) will be faded out. You can use the decryptor selection box to look at how each different decryptor affects invention chance and outcome.

Be sure to select the correct Outcome, because some T1 BPCs can invent more than one T2 item (for example, a Scourge Rocket BPC invents both the Scourge Rage Rocket and Scourge Javelin Rocket BPCs, two different types of T2 rocket ammunition).

Currently, there are no Teams that work on Invention, but these will probably be added later (CCP has committed to looking at Invention in patches/expansions after Crius, see http://community.eveonline.com/news/dev-blogs/lighting-the-invention-bulb/).

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.

If your invention failed however, the 'Outcome' box in the industry window will tint red, with an animated red bar across, and display a large Job failed text in red.

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

Either way, your datacores and optional items will be consumed, and your BPC will be returned with one fewer run on it (unless it only had 1 run remaining).

T2 BPCs

Tech 2 blueprint copies have 10 runs, -2% ME and -4% TE, unless modified by a decryptor. T2 BPCs for ships and rigs have 1 run (again unless modified by a decryptor). The only activity you can do with a T2 BPC is to manufacture it, you cannot research or copy it.

Maximizing invention success

The chance for a successful invention is calculated by this formula:

Base Chance:

• All modules, rigs, ammo and all intact Ancient Relics have a base chance of 34%
• All Frigates, Destroyers and all malfunctioning Ancient Relics have a base chance of 30%
• Cruisers, Battlecruisers, Mining Barges, Industrials have a base chance of 26%
• All Battleships and all wrecked Ancient Relics have a base chance of 22%
• Freighters have a base chance of 18%

File:Invention chance.png

It's not difficult to get a good chance of success for modules, but progressively more difficult for ships as their size increases. This is why investing in some decryptors is a good idea for Tech II ship invention jobs.

For example, using one of the invention chance calculators linked earlier:

• Let's say we are inventing from a Nanofiber Internal Structure I blueprint copy, so select a Base chance value of 40%
• Enter 3 for the level of your encryption skill - a moderate level of proficiency
• Enter 4 for each of the two science skill levels - for a nanofiber, that would be Nanite Engineering and Molecular Engineering
• Enter nothing / +0% for decryptor

Press the "Recalculate" button. The probability of success is 47.8%, near enough to what we see in-game.

Now enter Meta level 4 for the base item and recalculate. The probability of success is now a whopping 74.2% - this illustrates the value of using higher meta level base items in invention jobs. You can experiment with different skill levels and items to see how the probability changes. Use this to determine the levels of skills you wish to train, and whether you want to invest in meta level items or decryptors.

Note that the following factors have no impact on the probability of invention success:

• Using meta level 0 base items (as previously described)
• ME, TE or number of Runs on the BPC
• How attractive, charming or brilliant you are :-)

Helpful guidelines

• Science skills each improve the chance of success by twice as much as the encryption skill, so since all are 5x rank skills, you should train science skills up first. A decent option is to initially train encryption to 3 and science skills to 4. Eventually you should consider training encryption to 4 and the science skills to level 5 - especially the ones for ships - if you are going to be producing significant amounts of certain items.
• 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.
• To maximize profits from invention, you need to minimize your investment costs. This means using buy orders to purchase invention items in the market: datacores, meta items, decryptors. You'll also want to shop around to different systems to find the most affordable blueprint copying and invention facilities.
• As you gain more experience in invention, you can experiment with different investments in your mix of skills, meta level items, and decryptors. If you are going to be a serious producer of Tech II items, you will eventually want to establish a research POS - with significant time saving bonuses - for copying and invention jobs.

Useful links

Apart from the invention chance calculators linked earlier, here are some more links:

• A very good invention profitability calculator: http://www.eve-market-guide.com/
• An easy to use tool for analyzing the profitability of T2 invention and manufacturing: http://bp.cherry.frubar.net/
• Another helpful tool for analyzing the potential value of invention jobs is Eve-MEEP: http://sites.google.com/site/evemeep/
• Invention process explained: http://wiki.eveonline.com/en/wiki/Invention
• Datacore types: http://wiki.eveonline.com/en/wiki/Item_Database:Manufacture_&_Research:Components:Research_&_Invention:Datacores

In Ye Olde Days...

A long, long time ago...

Once upon a time, CCP decided that Tech II items and ships would be a cool thing to offer to EVE players. This, however, presented a problem. To maintain balance, T2 items had to be more expensive and harder to get than T1 items, since they represent a significant improvement in performance. They couldn't simply seed T2 BPOs in stations, as T1 BPOs are provided, or else no one would ever make T1 items anymore. And so, in their infinite wisdom, CCP created the T2 BPO lottery, where a limited number of T2 blueprint originals were awarded to players, based on the number of research datacores they owned. This happened with the Castor expansion in 2003. 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. T2 BPOs still exist in EVE, and are highly prized and hideously expensive. Their owners have gotten very rich in the game, and they guard their use very diligently. Many have speculated that T2 BPOs may one day be discontinued - if this ever happens, not only will it make a lot of people very angry, and a lot of other people very happy, but the invention process will be the sole source of advanced tech items in the game.