If you already have a rex with a saddle and high health (mine has 20k) then you can simply walk up on your rex, get off so that you're still on it's back and then shoot the wild rex while your tame tanks the damage. I have tamed a few 150 Rex's this way. You can also use this method while kiting the wild rex, shooting it while it charges you and then move again.

The rex is pretty easy to tame. And there is several ways to tame it.

1. Stand on a higher cliff and shoot tranqs. He will start to run away when torpor gets high.

2. Build a 10x10 stone base in a square. 3 walls high. Or 3 door frames high. Add stone stairs. Lure the rex in to the trap and tranq it.

3. Use a Griffin and fly above the rex and shoot with tranqs. And fly after and shoot till its sleeps.

4. Use a good thyla, horse, wolf or other good tame that are fast enough and that you and use weapons when riding. Shoot the rex with tranqs and run away. Turn around and shoot a few more times and run. Repeat until the rex start to run away. Run after and shoot with tranqs.

5. Have a tribe mate pick you up with an argy and you can shoot tranqs on the rex.

Hope it helped 😊

If you're on the island and looking for high level rexes to tame or kill, look at carno island in the northeast corner of the map. Alternatively, high level rexes also spawn on the far west coast of the map, right on the border of where the biome switches to snow. There is a beach there with a huge rock nearby. Many high level rexes have been known to spawn there as well.

These bad boys are hard to tame so here’s my steps: Step one: craft a lot of toxicant or tranq arrows: Step 2: find a BAD BOI REX:step 3: put arrows in bow or crossbow(crossbow recommended for durability:step 3 SHOOT AWAY WHEN IT STARTS RUNNING ON A FAST MOUNT LIKE A RAPTOR:step 4: use your fast mount to catch it: step five: finish knocking it out: step 6: SHOVE RAW PRIME MEAT DOWN ITS THROAT AND BOOM YOU HAVE A REX. Press up if you find this helpful.😃

The easiest way to tame is to bring a high lvl Argie, a spyglass, some food, and a crossbow or longneck with tranqs to carno island. Kill everything near the Rex including all of the lower level rexes, leaving only the highest level Rex. Then, aggro it and fly up to the center piece of the island and find a safe perch to dismount. Shoot it from there, and when it runs away get on the argie, fly closer, land, dismount, and continue shooting until it is too far, then remount and repeat. Once it is tranqued, get some prime from whatever is near, and put it in the Rex. Take your argie and fly it above the Rex, and just keep an eve out for anything that might attack it. Once it’s tamed, cryopod and fly back to the nearest allied base. You can repeat this and get a different gender, and begin building up an army. Fair hunting a good day to you.

It's usually takes about 10 to 30 tranq darts to knock out a rex so you shouldn't use tranq Arrows unless it low level and desperate. And it also takes 10 to 100 narcotics to keep it asleep until you tame it

The easiest thing to use to tame it is prime fish 🍖.

So get a shark first and finally the best tip of always over prepare and use more tranq darts than necessary.

The best place to find a Rex is on the volcano in the middle of the map.