Mechanoid

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"Mechanoids - Autonomous intelligent robots built for domestic, industrial or military purposes. Only available to advanced cultures because such complex AI is needed to control them."
—RimWorld Universe Quick Primer[1]


Centipede

Centipede

Centipede

"Heavy combat mechanoids that glide on dozens of tiny legs. Their heavy armor and firepower makes them very effective against bunched-up static defenders. They are somewhat vulnerable to mobile hit-and-run tactics."


Type
MechanoidCharacters
Armor - Blunt
20%
Armor - Sharp
70%
Move Speed
1.33
Attack
head
20 dmg (blunt)
120 ticks (2 secs)
Average DPS
10


Description

Centipedes are mechanoids which do not eat, cannot be tamed or trained, and are always hostile to the colony. They can be found sealed in ancient ruins in all biomes, spawn inside mountains or outside on the landscape. They may also raid the player's base through events and can also be found in most poison ships and psychic ships. They will target doors, walls, base production tables and furniture.

Centipedes are often supported by scythers, though they usually outpace the centipedes by a great margin and won't stop to wait for them.

Combat

Centipedes are slow-moving and extremely resistant to sharp damage, which includes bullets, so they require many shots to take down with guns. Centipedes may spawn equipped with the minigun, heavy charge blaster, inferno cannon, or with no weapon at all. They also have strong resistance against deadfall traps but still vulnerable to have their head cut off or their sight sensors destroyed.

Centipedes are good at crowd control, but cannot take down single or widely scattered targets, especially when equipped with miniguns or heavy charge blasters, both of which has forced miss radii. One effective way of distracting fire from them (if they are not equipped with the inferno cannon or supported by scythers) is to simply let a colonist with a shield belt stand in front of other colonists; the centipedes will focus fire on the shielded colonist while being completely unable to hit it, allowing your other colonists to fire at the centipedes without getting hurt.

Downed centipedes can either be manually killed or shut down by adding a medical bill. Dead centipedes may be disassembled at the machining table for Steel 80, Plasteel 50, and Component 2, though these values are affected by mechanoid disassembly efficiency as well as missing parts on the centipede.

Biology

Centipedes consist entirely of mechanical parts, and are mostly composed of very large 'rings' that make their appearance similar to that of a real-life centipede. Despite being somewhat sluggish (in movement and appearance), they are immensely durable and can absorb a significant amount of fire before they are killed or even disabled.

Centipedes have six body rings, several sensors for hearing, sight, and smell, and an artificial brain that drives them. Interestingly enough, they lack any sort of communication parts and always spawn with their communication indicated as 'None', or no ability to. The only other external body part a centipede has other than its rings is its head, making it very difficult to actually kill a centipede. The only operation that can be performed on centipedes is the "Shut Down" function. This has no effect aside from shutting down Mechanoids that are already incapacitated. This operation can only be performed by a colonist that is assigned as a Repairer. This provides a helpful alternative to simply shooting incapacitated mechanoids, leaving your colonists free to help with the inevitable cleanup after a mechanoid raid.

Diet

Centipedes are machines, and machines don't need to eat - but they do need some source of power.

Currently, it is unknown what power source or other source of energy the Centipede uses.

Combat

Centipedes are mechanized heavy siege units, and as such are generally equipped with either a Minigun, Inferno Cannon, or Heavy Charge Blaster on semi-rare occasions, but are also able to engage in melee combat with colonists.

Melee Attacks Damage Amount Cooldown
Blunt 25 140

Their melee attack is the second-highest damaging attack in the game, surpassed only by the EMP Grenade. Getting in close is not recommended, unless you absolutely have to interrupt their firing sequence to save vital assets from death or destruction. Even then, it is advised to wear the heaviest armor possible to block blunt-type damage.

Body Parts (Summary)

Centipedes are actually very simplistic and robust in design, with not that many parts overall. Their obvious weakness is that they're able to be severed in two, rapidly reducing their ability to move (which may eventually incapacitate them).

  • Note: Centipedes have a health scale of 2.0 - meaning their parts have twice the health of body parts listed in the files.
Body Part Name Health (× Health Scale) Base Health Quantity Coverage (per part)[2] Group Function / Required for following System Effect if Destroyed/Removed
First Body Ring 200 100 1  ? Core Part Functioning in general Machine Failure
Mechanical Head 60 30 1 8.0% Head Houses Artificial Brain, Sensors Machine Failure
Artificial Brain 60 30 1 20% Inside Head Data processing Machine Failure
Sight Sensor 20 10 2 15% Head Sight Loss of sight/Blindness
Hearing Sensor 20 10 2 5.0% Head Hearing Loss of hearing/Deafness
Smell Sensor 20 10 1 10% Head - -
Second Body Ring 170 85 1 75% Inside first ring Moving, Manipulation Loss of moving/manipulation ability
Third Body Ring 140 70 1 80% Inside second ring Moving, Manipulation Loss of moving/manipulation ability
Fourth Body Ring 110 55 1 75% Inside third ring Moving, Manipulation Loss of moving/manipulation ability
Fifth Body Ring 80 40 1 66% Inside fourth ring Moving, Manipulation Loss of moving/manipulation ability
Sixth Body Ring 200 100 1 50% Inside fifth ring Moving, Manipulation Loss of moving/manipulation ability

Scyther

Scyther

Scyther

"Fast, spindly, human-sized combat mechanoids. They usually carry one primary ranged weapon, and their bodies are adorned with two articulated blades to make them deadly in melee combat. They don't use cover. Best handled by concentrated, overwhelming force."


Type
MechanoidCharacters
Armor - Blunt
10%
Armor - Sharp
25%
Move Speed
6.6
Attack 1
left blade
20 dmg (cut)
100 ticks (1.67 secs)
Attack 2
right blade
20 dmg (cut)
100 ticks (1.67 secs)
Average DPS
12


Scythers are a type of fast-moving mechanoid with strong melee skills that can be found sealed in ancient ruins in all biomes, either spawned inside mountains or outside on the landscape. They may also raid the player's base through a random raid-type event and can also be found in most poison ships and psychic ships.

Scythers are often supported by centipedes, though they outrun them by a huge margin, and will not stop to let them catch up.

Like other mechanoids, scythers are sentient machine-like creatures which do not need to eat, cannot be tamed or trained, and are always hostile to the colony. Scythers have a moderate resistance to sharp damage and a small resistance to blunt damage combined with an average health scale, making them trivial to disable at range with sufficient firepower. If you don't have very good long range firepower, it's better to try and get them into close quarters ranged combat due to their limited durability and because their superior long range firepower will be redundant at this point. Scythers are vulnerable to deadfall traps, with only a few hits required to kill them.

Scythers will always spawn equipped with the charge lance and will generally prefer to engage at range over melee. However, they are horrifyingly effective at melee, being the enemy with the highest melee DPS in game, surpassing that of the Thrumbo.

Downed scythers can be salvaged through a medical operation to obtain their blades so long as they are intact after battle. Shutting down a scyther will negate the opportunity to remove their parts. They can either be killed by directing a colonist to fire/melee it to death, or shut down by adding a medical bill. Dead scythers may be disassembled at the machining table for Steel 40, Plasteel 25, and Component 1, though these values are affected by mechanoid disassembly efficiency.

Graphs

The below graph assumes an uninjured scyther using a Normal charge lance. Values may differ as scythers will spawn with charge lances of differing quality.

Charge lance accuracy. Charge lance DPS.

Trivia

  • Scythers have a unique slashing sound when they use their melee attacks.

Biology

Scythers, although mechanical and not very human-looking, are actually almost the same in structure as a typical human (minus the organs). However, they're clearly faster and more durable than humans, don't feel pain and do not fear for their life - they don't even use cover. This alone makes them very dangerous to fight against when under-armed.

They have two arms, run on two legs, and (surprisingly) have a neck and make vocal communication. Why a machine would use standard human-like air-based vocalization is unknown at this time - especially when Centipedes are completely unable to manually communicate. Scythers have the same "Shut Down" function as centipedes.

Diet

Much like Centipedes, it's unknown what exactly drives a Scyther, but it's likely it would be similar to whatever powers the Centipede.

Combat

Scythers are usually seen carrying their Charge Lance into battle, but are able to engage in melee.

Melee Attacks Damage Amount Cooldown
Cut 24 100

The name "Scythers" is derived from the vicious scythe-blades they wield as melee weapons, which are frighteningly effective at dismembering careless colonists that stray too close.

Body Parts (Summary)

Scythers, again, are practically humans in biology, although they lack many of the human organs and bones.

  • Note: Scythers have a health scale of 1.5 - meaning their parts have ×1.5 the health of body parts listed in the files.
Body Part Name Health (×1.5 Health Scale) Base Health Quantity Coverage (per part)[2] Group Function / Required for following System Effect if Destroyed/Removed
Mechanical Thorax 60 40 1  ? Core part Functioning in general Machine failure
Mechanical Neck 45 30 1 8.0% Top of Thorax Communication (vocal),
connector of thorax and head
Machine failure
Mechanical Head 45 30 1 75% Neck Houses Artificial Brain, Sensors Machine failure
Artificial Brain 45 30 1 15% Head Dataprocessing Machine failure
Sight Sensor 15 10 2 15% Head Sight Loss of sight/Blindness
Hearing Sensor 15 10 2 5.0% Head Hearing Loss of hearing/Deafness
Smell Sensor 15 10 1 10% Head - -
Arm 45 30 2 10% Thorax Manipulation Loss of manipulation ability/Unable to work (if both lost)
Hand 30 20 2 20% Arm Manipulation Loss of manipulation ability
Fingers 10.5 7 10 5.0% Hand Manipulation Loss of manipulation ability (minor)
Leg 45 30 2 10% Thorax Moving Unable to move
Foot 30 20 2 20% Leg Moving Loss of moving ability
Toes 15 10 10 5.0% Foot Moving Loss of moving ability (minor)

Body Parts (Detailed)

Body Rings

Everything is built off of the Centipede's first body ring - the head, and second body ring are connected to the first ring, while the rest of the rings chain off from there (second ring connected to third, third connected to fourth, etc).

Body rings enable the Centipede to move and work, as there are many tiny, tiny legs that are connected to the body rings (not listed under body parts).

Artificial Brain

Required for overall function and function of any Mechanoid. Without this, a Mechanoid is simply an empty husk of mechanical parts. Can be deactivated if incapacitated, causes same effect as euthanizing

Sensors

Sight sensors for seeing, hearing sensors for hearing, and smell sensors for smell.

It's worth noting that smell is not yet implemented in the game, so destroying a smelling sensor doesn't harm a Mechanoid overall since they do not feel pain.

Scyther Knife Protrusion

Scyther Knife Protrusions can be surgically removed from a scyther if they're incapacitated.

Once removed from an incapacitated scyther, scyther blades can be installed onto a colonist as replacements for their fists. A scyther blade cannot be salvaged if it has been damaged or if the scyther is dead. To remove a blade, add a bill in the scyther's Health, Modifications tab. Only a colonist set as a constructor can extract the blade. Two scyther blades make up one of the best melee weapons in the game, out-DPS'ing a normal plasteel longsword (12.12 vs 10).

A scyther blade can only be installed on a natural arm and it deals 20 damage, compared to 6 damage from a fist. If an installed scyther blade gets replaced with an artificial arm or another hand attachment, the blade will be removed and boxed for reuse. Scyther blades come with a significant tradeoff, by reducing the hand's efficiency to 20%. A colonist with one normal hand and a blade on the other has 60% manipulation. A colonist with two blades installed has 20% manipulation, making one great at melee but not so good at anything needing good manipulation.

References

  1. Mechanoids - RimWorld Universe Quick Primer
  2. 2.0 2.1 Coverage determines the chance to hit this body part. It is dependent on which group the body part is part of, so, for example, you can't shoot someone in the toe and hit them in the brain.