It is known as a Space War Zone in which players must complete certain objectives. The Ker'rat System in particular features a large Borg presence with a scenery containing a small cracked planet and Borg remains.
An equivalent ground war zone can be found in the nearby Otha System.
 System description
 War Zone - Encryption Errors Objectives
- Scan Borg encryption nodes (8)
- Destroy Borg repair hulks (4)
 NPC Enemies
There are more than eight encryption nodes scattered throughout the zone. They must be approached within 5 KM to scan, an action which (like most scans) cannot be completed while firing or being fired upon. Speeding through the zone at full impulse will allow you to find unguarded nodes and scan them. It is also possible to scoot in and scan whilst other starships are collecting aggro from whatever is nearby. During this phase of the mission, only Probes and Spheres will attack; Cubes and Tactical Cubes will register as allies, and Repair Hulks won't register as targets at all, though you'll be able to pick them out by eye.
Once eight nodes have been scanned, a pop-up from your Tactical Officer will announce the next phase of the battle. Repair Hulks become target-able, and Cubes and Tactical Cubes become hostile. Even worse, the larger majority of Hulks will spawn within 10 KM of some sort of Cube. The more weapons your ship (and those of your allies) sport, the easier it is to destroy a Cube; past Lt Cmdr, two ships alone can solo one. Tactical Cubes typically require at least three, as they have about four times more Hit Points than a standard Cube, and can destroy just about any ship outright with a deadly combo of Tractor Beam, Borg Shield Neutralizer and Torpedo: Spread. If someone accidentally collects aggro it's not considered impolite to flee and leave them to their fate. Hulks themselves have no weapons or shields.
Once the mission is complete, the four-minute cool down timer begins, points are totaled and a bonus reward is assigned to the top five players with more than one point. For this reason, "stealing" an encryption node from an ally may cause fury, but for good or ill, points are not listed during the mission, and he will likely have trouble determining whether you actually "stole" a prize-winning placement from him.
Finally, players should be aware that this is not a PvE zone; it is a PvPvE zone. Klingon and Romulan Republic players can enter the zone at will, and have the full spectrum of hostilities available to them. Klingon players actually have their own set of mission objectives, but most prefer to fulfill daily kill quotas here, attacking vulnerable or distracted Federation ships. This is by far the largest impediment to efficient dilithium farming. However, Klingons are almost always outnumbered here, and Federation players can most easily neutralize them by simply sticking together. Federation players must also beware of groups of KDF (and KDF-aligned Romulan Republic) ships using Cloaking Devices to sneak into an effective ambush position. Any Fed ship that becomes separated from the main group will find themselves easy prey to prowling KDF or Romulan ships.
- Ker'rat was one of the game's most known and played dilithium farms, due to the fact that the mission in this system could be completed repeatedly without a cooldown. The mission grants 1440 dilithium each time they turn in the mission along with a fixed number of Bridge Officer and Player Skill Points. As of June 23rd, 2013 the mission is now a randomly occurring daily that is randomly cycled between other PvP and Warzone missions. The mission has at least a 20 hour cooldown as of the Legacy of Romulus expansion.
- This system also serves as a kill and death farm for the Klingon Empire faction because this is also a PvP zone in which players may engage forces from the opposite faction. This allows KDF players to complete their daily PvP quests easily along with the standard mission of this zone.
- There is a known bug in which if a player flies their ship to the Federation spawn area (opposite to where everyone starts the map in the beginning), and logs out and log back in again as the same character, they will be able to attack ships on their same faction as well as ships on the opposite faction. Meanwhile the opposite faction registers as allies and cannot attack you. This will fix itself if a player changes instances or leaves the map.
- Like its sister ground zone Otha System, is it not uncommon to see players simply 'farming' the mission for loot as space items tend to fetch a good price either by selling to a vendor or in some cases to resell on the Exchange at a much higher cost if the loot item in question is popular and has a high player base value. This makes this Zone very profitable for especially newer players. For this reason players may just warp in and shoot Borg NPCs until their Inventories are full and warp out, even if they don't necessarily have an active Warzone mission in progress.
|Details||Borg Collective • Borg • Unicomplex • Ker'rat System • Borg Transwarp Hub • Borg Invasion|
|Ground Forces||Drone • Medical Drone • Tactical Drone • Heavy Tactical Drone • Elite Tactical Drone • Infected Drone • Worker Drone • Elite Tactical Assimilated Gorn|
|Starships||Tractor Probe • Regeneration Probe • Probe • Sphere • Cube • Tactical Cube • Unimatrix 0047 Command Ship|
|NPCs||Ogen • Manus of Borg • Armek of Borg • Tosk of Borg • Donatra • Assimilated Undine • Borg Queen|
|NPC starships||Assimilated Carrier • Borg Cube 19721 • Borg Queen's Octahedron • I.R.W. Valdore • Siege Cube 1 of 5 • Siege Cube 2 of 5|