The following is a list of technology used by the Yautja. The Yautja are a highly advanced technological species, evident through their capacity for interstellar travel and their vast array of weaponry and equipment. As shown in flashback sequences in Alien vs Predator, some of the listed weapons and craft have been in use for millennia. Yautja are extremely protective of their technology, and will go to great lengths in order to prevent Humans from obtaining it, even to the point of self-destruction.
- Main article: Bio-Mask
Various mask designs are used by the Predators. These masks contain a variety of functions which the Predators may require during a hunt. As well as protecting the Predator's head, the mask acts as a respirator. It has a sound amplifier, multiple vision modes, a zoom function, some diagnostic capabilities and a recording system.
The masks have been shown to have access to several different visual frequencies, the most commonly seen being infrared. Infrared is effective for tracking Humans, but useless in a Xenomorph hunt. Also available is an ultraviolet spectrum and a specifically tuned EM Field Detector mode used to track Xenomorphs. Additional vision modes are available to determine the health condition of targets.
Housed within the helmet is a targeting and tracking system for shoulder based plasmacasters. A shoulder mounted Plasmacaster uses this laser target designator, which comprises three corners of an open triangle, to aim at the designated prey. Incorporated to finalize the shot is a lock-on system. As the quarry is decided upon, the designator will zoom a triangle in on the prey from the HUD, which will flash and turn solid red, then fires. This also has a zoom capability so the Predators can see and aim over great distances. This tracking system also allows the Predators to plot trajectories of thrown objects.
Another feature of the Predator's mask is its voice translator/recorder. This device can both record and play strips of audio, which a Predator may use to express meaning or catch prey off guard, or to simply listen to the voices of their prey, as if to study their language. The mask also seems to affect hearing as well; in Predator, when the Predator took its mask off, it heard things at a much higher pitch than before and slightly more distorted. As seen in Aliens vs. Predator: Requiem, the helmet also has a video playback mode that displays what the wearer has witnessed or been involved in. In the Aliens vs. Predator video games, the Predator has four vision modes, regular vision (to fit in with the first-person shooter genre), thermal (spotting regular beings like humans), electric (gives a red background, used spotting xenomorphs by their white outline), and Predator vision (gives a green background, used for spotting other Predators and technological objects, such as weapons and armor, shown in a white outline).
In Predator: Concrete Jungle, the Predator's mask offered four types of vision and varying diagnostic functions for each: Normal Vision, which was the same as a human and had no diagnostic; Thermal Vision, which highlighted heat signatures and could analyze health and armour weaknesses in prey; Tech vision, which contrasted energy sources, xenomorphs and analyzed a prey's weapon systems; and Neuro Vision, which exposed the prey's current emotional status (calm, panicking, hostile, etc.) and, on scan, would show the target's affiliation and rank
- Main article: Cloak
Typically reserved for hunts against quarry which shoot back, the Cloak is controlled via the Predator's wrist-computer and provides the Predator with active camouflage, bending light around the wearer and projecting a semi-transparent image in front of the Predator, rendering it partially invisible. It is not perfect, as close observation will reveal the light-distortion effect around the user. The device is also used to mask Predator ships moving within enemy territories. The Cloak does have some weaknesses; though effective in dry terrain, contact with water will render the device inoperable, as will damage to any of the Predator's electronic equipment or injury inflicted upon the user. As seen in "Predator", the device actually highlights and magnifies the Predator's presence when passing in front of a campfire. It is ineffective against Xenomorphs, due to their shark-like senses.
The device works by bending light around the cloaked body, with the light apparently seeming to pass straight through. It is slightly distorted and refracted, but produces a very good camouflage at long ranges. At short ranges, light has to be refracted through the entire cross section of a Predator body. This means the distortion of light around the cloaked body will be noticeable and render the cloak ineffective in close combat.
The cloaking effect was executed by Joel Hyneck. According to Predator director John McTiernan, the scenes in the film of the cloaked hunter were the reason Jean-Claude Van Damme left the set two days in production, as he was unhappy with being cast as an uncredited special effect. Wind and water fans were used to simulate the Predator whenever walking in water.
- Main article: Medicomp
The Medicomp is a small case that contains various medical supplies should the Predator ever be injured. This healing kit contains enough tools to perform minor surgery and repair superficial wounds. Among the medical supplies are vials of liquid which, when mixed with heated minerals, creates a regenerative sludge that can be used to cauterize wounds. Also contained are a shrapnel extractor, wound staplers, one stimulant shot, and one antiseptic tube.
According to Aliens vs. Predator: Requiem model supervisor Nick Seldon, the use of staplers to close wounds as opposed to needles was done as a nod to the fact that the Predator's hide is too thick for surgical needles.
As with the helmet, the body armor varies in appearance. Most Predators wear a breastplate which does not cover the midsection. It is made of a very durable metal able to stop bullets as well as delay the corrosive effect of xenomorph blood long enough for it to be taken off. The plating is made of several layers, resulting in better durability. Also worn are gorgets, pauldrons, spaulders, tassets and greaves as well as foot armor. Though very light and strong, a Predator's armor can be pierced by a xenomorph stinger.
The Aliens versus Predator video games portray the plate armor as being indestructible as a gameplay element, making the Predator the most durable player-controlled character.
The original plate armor was designed by John Rosengrant.
- Main article: Sat-Com
The sat-com is a portable computer which shows the schematics of some determined object or building, as well as working like a positioning unit. When activated it displays a miniature which is projected out of the wrist computer as a 3-dimensional holographic image. The sat-com will also display the position of laser nets and mines in the area, as well as their projected area of effect.
- Main article: Energy Sift
The Energy Sift is a device used to recharge the Predator's gear.
- Main article: Charge Emitter
The Charge Emitter emits an energy surge used to short out technology. Its function is somewhat similar to the ComTech Hacking Device.
Predator weaponry varies from hunter to hunter. Older warriors tend to disdain the use of firearms, preferring to use melee weapons in order to increase the challenge.
A forensic scientist in Predator 2, upon examining one such weapon, found that it did not correspond to any known Earth element.
- Main article: Plasmacaster
The Plasmacaster is a long range energy projector capable of guiding armor-penetrating plasma bolts at distant targets. Moreover, the weapon's bolts explode in a burst of plasma shrapnel that damages other enemies near the point of impact. By default, the weapon's attack range is greater than the Predator's visual range.
- Main article: Plasma Pistol
The Plasma Pistol is a smaller, handheld version of the Plasmacaster. Both purpose-built and custom-assembled versions have been known to exist.
- Main article: Wristblades
Wristblades (Yautja: Ki'cti-pa) are the weapon of choice for most Predators. They are retractable, usually twin serrated blades between six and eighteen inches in length and two to eight inches wide. These deadly weapons are sharp enough to cut through bone and are intended for use against unarmored combatants. As a last resort, they can be fired as a projectile from the wrist gauntlet.
- Main article: Combistick
Another basic weapon of the Yautja. The Combistick is a telescopic spear-like weapon that is about 2–2.5 ft long when closed up and around 6–8 ft long when fully extended. The metal used to make the weapon is currently unknown but it can withstand the acid of the Xenomorph species. These extendible weapons are perfect for impaling aliens and humans at great distances when thrown.
- Main article: Smart Disc
The Smart Disc (also known simply as the "Disc") is an extremely sharp circular weapon that acts as a combination of discus and boomerang, and apparently contains some form of guidance system. This weapon is extremely powerful, shown to cut through half a dozen cattle carcasses and a man in Predator 2 in quick succession without any effort. It also has a hand grip for use as a slashing melee weapon as well.
- Main article: Netgun
A handheld device capable of firing a wire net with sufficient velocity to hurl and pin a target to a wall. The net also features a built-in tightening mechanism that will cause the net to retract and slice into the target once they are pinned.
- Main article: Wrist Gauntlet
The Wrist Gauntlet (or the Wrist Bracer or Wrist Computer) is possibly the Predator's most valuable tool. The wrist mounted console houses several features necessary to the hunt, including a devastating self-destruct device. It is also used to cycle the Predator's vision modes. The Sat-Com is a computer housed in the wrist console, which projects holographic schematics of a particular object or building. As well as functioning as a global positioning unit. The sat-com can also display the position (and damage radius) of mines or laser nets in the area.
- Main article: Energy Flechette
A small plasma bolt can be fired from the Predator's left wrist gauntlet, which seems to be only moderately effective when compared to the Plasmacaster, but still causes a reasonable amount of damage. A similar weapon called the Energy Flechette appears in Aliens vs. Predator 2: Primal Hunt.
- Main article: Predator Mines
The Predators have access to an array of proximity-activated mines, both using conventional explosives and cutting lasers.
- Main article: Remote Bomb
Introduced in Aliens vs. Predator 2, Remote Bombs are superficially similar to mines, but have to be detonated by the Predator. They can be thrown great distances and will stick to most surfaces. Some surfaces, especially metal, will cause them to bounce. If they strike organic matter, they will explode on contact.
- Main article: Whip
Seen in Aliens vs. Predator: Requiem, the Whip is a fast moving Yautja weapon. A segmented handheld bull whip that wraps around a target, and once pulled taut is capable of cutting it in half. Like all Predator weaponry, it is resistant to Xenomorph acid.
- Main article: Shuriken
Also featured in Aliens vs. Predator: Requiem, the Shuriken functions much like the Smart Disc, except without the return function or guidance systems. The Shuriken's retractable blades extend when ready for use, and it can also be used as a handheld slashing weapon.
- Main article: Scimitar
Introduced in Alien vs. Predator, Scimitars are similar to Wristblades, but much larger, offering increased range in close combat.
- Main article: Mother Ship
The Mother Ships or (Jag'd'dja atoll in the Yautja language) are massive, mobile bases for Yautja hunters. They are totally independent craft where a number of smaller ships can dock. These ships rarely enter conflict with another force, and are usually inhabited by a single clan, led by the clan Elder.
Like other Yautja craft, they utilize cloaking devices which are sensor-invisible, making them virtually impossible to find. Pilots of other Yautja vessels, however, can use their vessel's standard beacons to locate a nearby Mothership. Here, warriors can battle for respect and acquire new weapons and devices. Most Mother Ships also have a trophy case in which its clan's trophies are put on display. According to the novel AVP: War, almost every mothership holds a captive Queen, which the Yautja most likely release in an area for a hunt.
- Main article: Pyramid
The Predator temple combines elements of numerous ancient human cultures in its design. It has compound layers reminiscent of Aztec architecture, yet have smooth Ancient Egyptian edges. At the very bottom of the temple is a holding chamber containing a captive Alien Queen whose eggs are transported to a sacrificial chamber on the upper levels via a conveyor belt. Below the sacrificial chamber is a weapons chamber housing a Plasmacaster distributor, which upon activation, sets off a series of traps which reconfigure the pyramids internal architecture every ten minutes.