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Black Hole Generator

Black Hole Generator

An experimental singularity lab created by the Great Race. Commonly called the BHG.


A drawing published by BHGO of the Black Hole Generator, according to detection and spying reports.

This building has not been added to the iphone client.

Note: The UI is currently having a few issues with displaying options. It displays all legal options correctly, but does not display prohibted ones correctly at this time.

Space Stations now have the ability to restrict BHG use within their jurisdiction once their parliament reaches level 23.

The black hole generator is said to do a lot of crazy mind bending stuff. With the power of a singularity, it changes the universe by multiplying it with an alternate universe. Here are some evidence-supported features:

  1. It does absolutely nothing until level 10 (you can not try to start it until it has been upgraded to L10). Some functions may not be available until later levels.
  2. It only can be built on habitable planets (don't build one on a Gas Giant).
  3. After being used it has a cool down work timer depending on its level and which function you attempted.
    This can be subsidized for 2e.
  4. It consumes waste each time it is used. If it is incapable of consuming that amount of waste then it cannot be used.
  5. Each time it is used, you are messing with reality and the fates may be capricious in their response. Various side effects and misfirings may occur with each firing of the BHG; even succesful firings of the BHG can cause some side effect on another empire's planet. Most side effects cause a news item and an email to the planet that is directly affected.
  6. You may subsidize the chance of success. The cost in E is determined by the chance of success. Doing so will make sure you do not fail, however, doing illegal actions may still have consequences.
  7. The range of the generator is dependant of which function. The further the distance, the more difficult it is to focus increasing the chance of failure.
  8. The greater the level of the BHG the greater the chances of success and range are, and the shorter time it takes for the BHG to cool down.

When you try to start it you can select one of the options presented for what you want it to do; if it does not fail on startup your choice will happen. The options are listed below

  1. It can permanently increase the size of a habitable planet or asteroid with or without a colony. This ability is available when the BHG is at level 20.
    A planet is increased in size equal to the level of the BHG. An asteroid will increase in size 1/5 the level of the BHG. Rounded down. The soft cap is 70 for habitable planets and 10 for asteroids.
    Once they are at that cap, you can increment by one size 25% of the time, up to size 75 and 20 respectively.
  2. It can permanently change the type of a habitable planet. Choose between P1-P40.  This function can only be used on your own, allied, or unoccupied planets. This is available when the BHG is at level 25.
  3. It can permanently change the type of asteroid. Choose between P1-P25.  This is available when the BHG is at level 25.
  4. It can permanently convert any unoccupied (no platforms) asteroid within range.  When converted, the asteroid becomes a random planet between P1 and P40 of size 30.  If you attempt to convert an asteroid that has platforms on it your BHG will be destroyed and turned into a Fissure.  This ability is available when the BHG reaches level 15.
  5. It can permanently destroy one unoccupied planet (habitable or GG) within range. When it is destroyed, the planet becomes an asteroid between A1 and A25 of size determined by the level of the BHG.   This ability is available when the BHG reaches level 10.
  6. You can move the planet that has a BHG, swapping it with another body within range with the "Swap Places" option.
    This option requires level 30. The cooldown time for this option is 8 days. Swap places can also be used to jump a planet into an empty orbit, to do this you need to supply the correct coordinates.  This option can be limited in its use via the Parliament proposition Members only colonization. A BHG cannont be used to move a planet into a system that is under Members only colonization of another alliance.  Also to be able to switch places with a non-allied colony an alliance only needs to have control of the system, Members only colonization is not needed in this situation. (You can swap with an empty orbit, but will need to enter the coordinates for the target then).   This ability is available when the BHG reaches level 30.
    You can not move a space station into a starter zone with this option, nor exceed the max number of colonies in the starter zones. (two on us1)
  7. You can "Jump Zone" which swaps the BHG planet with a random habitable planet in the target zone.  It will be within your min orbit to max orbit range.
    This ability is available at a BHG level of 15 and is mainly for those starting empires wishing to move to another less populated zone.
    The target uninhabited planet will be in a non-seized planet, but there is no way of predicting where in a zone you will end up.
  8. "Move System" is another option available with a level 30 BHG.
    It costs 30B in waste and will move all bodies currently in orbit with the planet that has the BHG and swaps them with the target system bodies.
    All involved bodies must be either your own, an ally, or uninhabited. Asteroids will come along as well.
    The target system must either be seized by your alliance, or not seized at all.  The stars themselves stay in their original location.
    This option does not work to or from Starter Zones.

Side Effects:

Side Effects can occur anywhere within the zone and happen when the BHG succeeds and the side effect chance comes up.  Side effects are more random and can be beneficial.

  • Increasing or Decreasing a random habitable planet by up to 2 plots.
  • Mass transmutation.  You may find decor placed, possibly up to 10 decor buildings.
  • Wormholes which can empty or fill various resources.
  • Fizzle, When this happens it just means the selected body by the server is not a valid target for the side effect selected by the server.  For example trying to turn an inhabited planet into an asteroid.
  • Cause a fissure to form on an uninhabited planet.

More about moving planets: You can move into an orbit that your species normally can't inhabit, but all food producers will still produce as normal. However, you may find yourself at negative plots which does impact your happiness production.

Failure Results:

Failure effects tend to be non-beneficial.  For example; while a side effect can wind up adding a few plot sizes to a planet, a failure will always subtract plot sizes if that effect happens.

  • Deformation of the planet with the Black Hole Generator.  Can reduce the planet size to a minimum of 30 plots.
  • Creating Antimatter.  The BHG blows up and damages about 50% of the buildings on the planet.  It leaves behind a Fissure equal to the level of the BHG.  The Network 19 message reads "Empire Name, finds a decimal point out of place".
  • An automatic failure happens if you try to create an asteroid out of an occupied planet, or create a planet from an asteroid that is being mined.
  • A Wormhole which will empty your resources.


The glyphs must be assembled in the following order.

 Kerogen, Beryl, Anthracite, and Monazite  


  • BHGs due to their multiple abilities can be used to customize empire growth and to be used offensively.
  • Can be used to jump a planet near to a target and attack with little to no warning.
  • Can be used to breakup uncontrolled ROFs. (Only if your alliance controls the star with the ROF can you swap a non-allied planet.)
  • Can jump into incomplete ROFs without members only colonization forcing the other planets to provide defensive coverage for your own
  • Can be used to change habitable planets to types P11 or P12 after which you can setup supply chains with the ore and end up have 2 planets with all the ore types being available.
  • Can be used to jump a planet outside of the empires habitable orbits which causes the planet to suddenly have negative plots equal to the number of buildings on the planet.  Negative plot counts also causes the planet to reverse its happiness production.  This can be more effective in most situations that scow bombing a planet.  This strategy however is easilly countered by the use of terraforming platforms. Note that you will either have to be allied with the target, or that your alliance controls the star the planet orbits.
BHG Scripting Commands: --config ../lacuna.yml --planet 'Planet 1' --target 'Planet 2' --view
This will let you view your options --config ../lacuna.yml --planet 'Planet 1' --target 'Planet 2' --increase_size 
This will increase the size of the target planet. --config ../lacuna.yml --planet 'Planet 1' --target 'Planet 2' --make_planet
This will convert a planet into an asteroid. --config ../lacuna.yml --planet 'Planet 1' --target 'Planet 2' --make_asteroid
This will convert a asteroid into a planet. --config ../lacuna.yml --planet 'Planet 1' --target 'Planet 2' --change_type (1-20)
This will change the planet type so it can have more favorable resources.  Please refer to
bodies composition HERE to be able to choose a good option if you wanna do this. --config ../lacuna.yml --planet 'Planet 1' --target 'Planet 2' --swap_places
This will enable you to swap planet locations.  Notice it says SWAP.  The planet with your
BHG on it must be one of the two planets that are being swapped.  So this can require
some maneuvering if you wanna move a GG. 
The UI has been updated to work with the BHG. 


  • On the topic of BHG usage on a Gas Giant: "If you were allowed to build and operate an BHG on a GG, the resultant tidal forces would tear the planet apart and the BHG would have a high probability of either igniting the gases creating a secondary star or creating an intensive black hole where the small, controlled one used to be."
  • The largest planet this can create is a 70 plot planet.
  • If a BHG changes the size of a planet, it doesn't affect any of the buildings. It is possible to have a negative plot count due to a bad side effect which can severely have an effect on happiness generation.
  • A Pantheon of Hagness works as it always does.
  • Do not try to use the BHG to convert an inhabited planet to an asteroid or an asteroid with mining platforms to a planet.

Keywords: blackhole Great Race Ruins

5Ysthane: "In the first known use of a BHG by a regular player, the planet Tylenol in the empire of Jazz reached 65 natural plots."
0Jazzeroki: "I've fired 3 level 30 BHGs now.  The first netted me a 65 plot planet.  The second reduced a planet to a 30 plot planet from 42.  The third firing blew up the BHG and left me a level 30 crater, and damaged half the buildings on my planet to random levels."
0Jazzeroki: "The latest firing of my BHG onto one of my distant planets for the first time produce a 61 plot planet from a 31 plot, and filled the waste storage of some poor empire."
0frobozz: "You'd need a high level ravine to be able to store the 30B waste required to move a system as a lvl 30 rift only stores around 19B waste. "
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