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ERN Crystal
ERN (Entangled Rift Node) Crystals are special upgrade items. Added to the ERN Portal they provide global upgrades; assigned to individual units some capabilities of the unit is enhanced
Buried ERNs can be retrieved by using a Terp.
To assign an ERN, either choose the desired upgrade in the ERN Portal or set a unit's ERN button to “WANT”. An available ERN will make its way to the ERN portal or the unit. Note that ERN portal upgrades strengthen over time.
The following player-built units can accept ERNs:
Pylon - Increases maximum connection distance to other pylons from 22 to 36 (Only one pylon needs an ERN; two pylons with ERNs still have a 36 tile maximum connection length)
Miner - Increases energy production from 1 to 4, or bluite production from 0.3/sec to 1.5/sec (for a miner at 100% efficiency)
Refinery - Though it can hold an ERN, it doesn't seem to benefit in any noticeable way from its presence.
Terp - Increases maximum range from 25 to 50 and speed of terraforming from 32 to 30 frames per cell per level
Cannon - Increases fire rate from 4/sec to 8/sec per second and maximum range from 9 to 18, and decreases ammo consumption from 0.25/shot to 0.2/shot
Mortar - Increases fire rate to 0.333/sec from 0.667/sec, maximum range from 13 to 26, and decreases ammo consumption from 3/shot to 2/shot
Sprayer - Increases fire rate from 3/sec to 6/sec, maximum range from 9 to 18, and increases “always on” pumping rate to 1.5x normal
Sniper - Increases fire rate from 1/sec to 2/sec and maximum range from 30 to 45, and decreases ammo consumption from 6/shot to 3/shot
Missile - Increases fire rate from 2/sec to 4/sec and maximum range from 40 to 60, and decreases ammo consumption from 4/missile to 2/missile
Bomber - Increases fire rate from 1.5/sec to 3/sec and decreases ammo consumption from 4/bomb to 2/bomb, effectively increasing bomb capacity per flight from 20 to 40
AC Bomber - Increases fire rate from 3/sec to 6/sec and doubles anti-creeper payload without an increase in ammo consumption
Shield - Increases shield radius from 10 to 14
Beacon - Increases effect radius from 20 to 32
ERN Portal- See page for upgrade details
Additionally, the following custom units are know to improve with ERNs:
Bertha - Fires three projectiles instead of one in a small area
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