Tranq Arrows/Darts DO NOT WORK!!! To knock this out you need to use a catapult and shoot in only on it's back. If you shoot it on it's legs it will kill it.

@Stormwebb19

Cannon balls discrease taming effeciency significantly! So for high tame level, always use boulders. Please let other people know! :)

Pretty easy to tame. Trap it in a circular form of stone Dino gates, place catapult low if catapult is high the crab will die. Then shoot it with a catapult. Cannons insta kill the crab, do not use cannons up/vo/te so people can see

Try to get high ground to get it in the top of the head with a cannon

TRANQ ARROWS DON,T WORK you haft to shoot a cannonball shoot it in its head if you shoot it in the leg or it will die. Up if helpful

Net projectile works on these, so craft your catapult and boulders, find your crab and net it. Proceed to set up the catapult a few feet from its face and you can easily just fire all required shots before the net expires. You’re welcome!

If you are missing with your catapult and it's dying, drag dino corpses to it and let the karkinos eat the corpses. It will heal him up a lot then try again with the same torpor you left off with.

This tame is like the Rock elemental, but do not shoot it in the head. Shoot it right in the back of it's shell. Anywhere else will kill it fast.

To the guy who said "rare on floaty islands on crystal" that is a load of crap found 20 on 1 ISLAND!!!

If your okay with losing 30% for fast knock out get a tek stryder with a chest cannon and let the crab come up and attack you two or 3 shots can knock a level 150 out

I understand that all the previous tips submitted were useful, but just in case it was not clear, hit the TOP OF THE CRAB, it will have a special animation if you hit it in the correct spot, and will take only a small amount of boulders to tame, even a high level. (Irrelevant with Cannons)

You can use canes to tame them ok 👍

PLS READ THIS THIS IS VERY IMPORTANT

Do try to rapid fire the catapult it can use a boulder whithout hitting do it in .9 second intervals it will save you sooooooo much time

Handy trick, if you're playing on Fjordur and want a high level DO NOT go to the Aberration Cave. There is a second Aberration cave near the Vannaland (South) Southeast teleport. Go inside, and if you find a low level kill it and harvest the corpse. Then do a lap of the cave (make sure to fight stuff to slow you down as if you run too fast this doesn't work), and you should have another spawn. I used this trick and in 5 minutes I had already killed 7 Karkinos, and they were a mix of levels. This is also a great way to farm Organic Polymer. Hope this helped

Using a cannon will ko any level crab in one hit, but will SEVERELY drop taming effeciency. If you want one quick, use cannon. If you want a high level use a catapult (the inferior siege weapon).

DO NOT USE A CANNON!! If you use a cannon the taming efficiency will drop all the way down to 58%. Use a catapult and shoot its back, don't waste resources on cannon or cannonballs

Knock out with catapult. Make sure to hit body to do torpor. Hitting legs damages it and doesnt knock it out. Shove rotten meat in it.

Put a catapult on a paracer, bring a high health turtle (carbomemys), whistle attack with the turtle and when the crab hits it put it in passive so you can easily aim and hit him on the body. No weird engineering needed.

The Canon Knocks 150s out in one shot to its core!

VERY IMPORTANT

As of recently, karkinosis torpor no longer gose up with catapults, this is seemingly a glitch but you now have to use cannons

Make sure others see this