Rex

The Tyrannosaurus (tye-RAN-uh-SAWR-us), or simply Rex, is one of the dinosaurs in ARK: Survival Evolved. The Tyrannosaurus is a huge, bulky predator that dominates virtually all of the island. It has considerably more and  compared to, but lacks the attack speed and mobility that  has. They are also incredibly slow in water, making them vulnerable to attack from below, but they make up for these drawbacks with sheer size and strength.

Behavior
Highly aggressive, Tyrannosaurus will attack most living creatures in sight aside from other apex predators. They're extremely bulky, having nearly double the of  of the same level. They also possess surprisingly good for their size, of which is also greater than that of any same-leveled. What Tyrannosaurus' lack in attacking speed (when compared to a ) they make up for in sheer. Tyrannosaurus generally ignore mounted tamed animals and choose to attack wild animals instead, but will attack tamed mounted animals if they get too close. However if they see a helpless tame or dismounted in the open, they will begin to attack.

Appearance
T. dominum is an exceptionally large (and often colorful) theropod dinosaur found on the island. They are covered in small, pebbly scales that are often interrupted with large osteoderms. Their underbelly, however, is smooth and tan with small rectangular scales. Along their neck and back there is a large ridge of large bony scutes that may be used to protect their vertebrae from the jaws of other carnivores (including other T. dominum.) They have proportionately long legs that end in three thick, padded toes, each decorated with one large claw. T. dominum regularly exceed seventy feet in length, however, they possess disproportionately small arms. Strangely, these arms are heavily muscled and extremely thick. When tamed and ridden almost no dinos except for creatures such as other Rexes,, , , and  will attack you if you don't attack them first, which makes it easy to travel with the rex without being hunted by other animals.

Tek Rex (Variant)
The Tek Rex is a creature that was permanently added to the game with the ARK: ARKaeology event and is part of the Extinction Chronicles I event. It is a unique alternate of the original Rex, and is purely made of Tek. Unlike the original, they spawn at a 5% rate at a 20% higher level than usual.

Drops
Rex=
 * Harvest


 * Guaranteed Special Loot

Tek Rex=
 * Harvest


 * Guaranteed Special Loot

Corrupted Rex=
 * Harvest


 * Guaranteed Special Loot


 * Random Special Loot

Breeding
One of the more difficult dinos to breed in captivity, due to difficulty in maintaining proper egg temperatures and the long period of hand feeding the infant. Recommend at least 2 Air Conditioners and multiple standing torches to aid in maintaining the egg at the proper temperature. Between monitoring the egg during incubation and hand feeding the infant, it is an 8-9 hour commitment to get the baby to the stage where it will eat out of a feeding trough.
 * Temperature: 85-95 degrees F / 29 - 35 degrees C (not accounting for insulation)
 * Incubation: Approximately 5 hours
 * Maturation: Approximately 3 days 20 hours and 30 minutes.

Base Stats and Growth
Rex =

Corrupted Rex =

KO Strategy
While Rexes are relatively slow, they are incredibly strong; trying to tame a Rex solo on flat ground can be risky. Bring a few friends and shoot Tranq Arrows at it. It will try to flee once torpor gets high but you can easily reach it sprinting.

Common strategies include:
 * Build a tower 10 Stone Pillars high with a ceiling on top. Lure the Rex to it while riding a flying mount, then land on your tower and shoot tranquilizers at it.
 * Find a Rex that spawned near a cliff. Quite a lot of Rexes spawn in the cove on the southeastern shores, sometimes 4 at a time. Stand on top of the cliff and shoot Tranq Arrows at it - it will usually stand still while trying to reach you. This method makes it relatively easy to tame a Rex solo. You can also aggro the Rex from a distance and steer it to a cliff while riding a fast mount, such as a.
 * If you can't find a cliff, bring a friend with a, , or . One player flies the mount and carries the other player, which then shoots Tranq Arrows at the Rex. Be careful to not let your mount run out of stamina, or the Rex will most likely kill all three of you when you go down!
 * Bring one or more tames set to passive. The Rex will usually attack your tame while you can shoot Tranq Arrows at it from a distance.
 * Another strategy is to find an area with large amounts of prey animals, and lure the Rex towards it, then, while it is attacking or eating, shoot tranq arrows or darts at it, avoiding its agro by running towards another prey animal, and repeating the process until the Rex goes down. However, neutral prey, such as will continue attacking, which will lower effectiveness, so be prepared to kill the prey as well.
 * Lure a rex into a behemoth gate cage and use your friend's flyer (Don't use pteros, if you try and shoot it will shoot them) to start shooting it down and you got yourself a safe spot
 * Ride a oriented for, speed, and enough carry .  A  outruns easily a Rex so run forward, turn to the side, shoot at it, then turn and resume running again.  Each pause to shoot will allow the  to regen  while you take the time to line up a good shot.  As well using rocks and other terrain features to kite it around help greatly.  It will eventually run which is easy to catch on a.
 * Create a simple trap. Four stone foundations 2x2. Surround perimeter with stone doorways two high. Pick a side, build two ramps from the top doorway to the ground. Kite the Rex up the ramp into the box. Stand back and tranq. Be ready to destroy a few doorways once it's tamed. Replace, Rinse, Repeat.
 * Create a taming boat that consists of STONE so the rex won't break it and make the area the rex will be out of stone doorways.(ALSO MAKE SURE TO COVER THE WOOD PART OF THE RAFT) This allows you to shoot it with tranqs and it won't get out. Make a ramp that leads into the trap. Once your taming raft is made and ready park it on the shore close to the rex you want to tame, make sure you're faster than the rex, and agro it up the ramp. Into the trap and run through the gaps in the doorways and tranq away! Alternatively, if you wall off the portion of the raft where you stand to drive, you can drive the still-awake rex to your base and tame it in safety there.
 * Build 3 stone gateways and place a LARGE bear trap in the middle. Lead the rex into the bear trap and place a fourth gateway behind it, effectively trapping it. The gateways will provide a guaranteed way to knock it out as the Rex won’t be able to escape or fight back, assuming you’re a safe enough distance shooting at it. After it is knocked out simply remove the gates and tame normally. The only problem would be if the Rex decides to move around the gate, which would mean you would have to rotate and lead the Rex into it.
 * Another way to successfully capture one is to lay out large bear traps. About 6 should do the trick. Arrange the traps into a triangle shape and then get the Rex's attention by shooting it with the tranq arrows. If you get it ensnared with the trap they wont be able to escape and will keep getting stuck allowing you to knock it out with the arrows.
 * If it is near sea or a deep lake, it will never attack you if it can't reach the bottom of the water without diving, so you can fire a crossbow and the rex will not attack you, this can be used to escape if one aggros on you early-game.

Combat
This section describes how to fight against the Rex.

General
The Rex is an imposing threat that is not only durable, but also hits rather hard. Their ability to traverse terrain quite well only helps to cement their position at the top of the food chain. While they are definitely the larger of the dangers in the environment, they are not necessarily the fastest and definitely not the smartest. Using one's wits and finesse will help to avoid the wrath of this iconic dinosaur.

Strategy
Player base sprint speed is faster than that of a wild Rex. It is possible to kite the Rex and do damage with ranged weaponry. If you get attacked by a Rex, try to find large rocks to get it stuck, or if you have a flyer nearby, get on that and get above a cliff, and shoot it from the cliff.

Another effective strategy—because of their terrible swimming speed—is to use a. Drive your raft far enough away to where you can still shoot the Rex and it doesn’t aggro anything else, then shoot it. Continue this process until it is dead. NOTE: when using this strategy, don’t go too far out into the ocean, as you could aggro a.

An additional note: If you are following the above strategy and there are sea creatures present, they may aggro on the swimming Rex and perhaps steal the kill from you.

Another effective strategy can be shooting it with a fired preferably from a  on a platform saddle, then shoot it with a ; use bullets if you want to kill it, or  or  if you want to tame it.

A tamed with its high damage and attack speed can easily overpower a Rex. Alternatively, a tamed at a nearby level to the Rex can decimate it as well. If these dinosaurs are not available when facing a higher level Rex, a pack of, especially mate boosted, can easily take down one at nearly any level.

With higher health and armor, a powerful sword or shotgun can easily take down almost any level of Rex.

Weaponry
Make sure that you have at least a Crossbow or Longneck Rifle. Fabricated weapons such as the Assault Rifle or the Rocket Launcher work best, but would be a waste of resources that would be better for raiding, or defense. Strong dinosaurs can also suffice as effective weaponry to down a Rex.

Dangers
Tyrannosaurus has a balanced amount of the primary stats, i.e. damage and health. The Rex is not to be trifled with, especially in the early game. If a player has low stamina (or is low level), the player could run out of stamina and the Rex could easily catch up. Getting it stuck between trees is useless, as it destroys trees as it walks. They can effectively kill a low-level player in only a few bites and reduce thatch structures to nothing in seconds. Even players in flak armor aren't very safe from a continuous Rex assault.

Weakness
When it comes to raw power, Rexes have few weaknesses as they can easily overpower lesser creatures and get over terrain surprisingly well. However, Rexes are not very intelligent (like most other creatures) and tend to aggro to the closest thing in the area aside from other apex predators, so running into a group of Dodos, Parasaurs, or Trikes can give you time to escape. If you need to escape from a wild Rex and other herbivores aren't around, base player sprint speed is higher than that of a wild Rex, so you can outrun one on foot. However, small obstacles in your path can allow it to catch up, as the Rex could easily walk over something a player would have to go around. By doing this, you can also run into a pack of Raptors, Carnos and other creatures that can kill you, so be aware of them!

In the event that you can overpower a Rex, it has no additional utilities to effectively defend itself, unlike a or  for example. This can make the Rex an easy and bountiful target.

Roles

 * Tank: Possessing a huge health pool, the Rex also inflicts greater damage and moves much faster when compared to bulkier tanks such as the Brontosaurus. (Level up Health and Melee Damage)
 * Hunter: One of the best creatures in the game at harvesting meat and other resources from carcasses, the Rex has little to fear in the wilds. (Level up Melee Damage and Health)
 * Damage: While still nowhere near that of Giganotosaurus, the Rex's damage output is incredibly high, and its durability is also useful for long skirmishes. (Level up Melee Damage and Health)
 * Transport: Decent speed, effective traversing over rough terrain, and good carry weight make Rexes decent for transporting goods. Although they do not get any weight reductions on resources, very few are dumb enough to challenge the raw power of a Rex convoy. (Level up Weight, Movement Speed, and Stamina)
 * Intimidation Tame: With its high volume of roar and large overpowering appearance, the Tyrannosaurus is by far one of the best ways to ward off anyone who dares attack your mount. Furthermore with its roar ability to cause lower-leveled wild/non-allied dino/survivors to defecate makes it even more intimidating with the only creatures being more intimidating are the, , and the.
 * Raid Boss Tank/DPS: Rexes are among the best creature to use for battles against the bosses such as the and the . Their massive health pool and high damage can allow a horde of them to hold aggro on a boss for a very long time. Coupled with a  providing a courage roar and a few  providing healing, it's possible for them to take down a boss without requiring guns and ammunition...but you should bring those with you, just in case. (Level mostly Health and some Melee Damage.)  Overall, Rexes are compatible with the numerous creatures that can be brought to boss fights to devise creative strategies to bring the guardians down.  There is a reason why the Rex is considered to be the "King of the Dinosaurs".
 * Guardian:
 * Battle Mount:
 * War Mount:
 * Combatant:
 * Defender:

Roar

 * Causes non-allies under a certain drag weight to defecate with a small stun/interrupt on creatures both tamed and wild. Does not stun players but causes them to poop.
 * The stun/interrupt will cause affected flyers to be grounded.
 * Victims have a cooldown in order to prevent 'pooplocking'.
 * Does not work on anything above the Rex's level.

Achievement

 * Riding a Rex will award the "Rex Rider" achievement.
 * Awards