Stock up on blood bags.

Grab some parachutes and some sleeping bags ( I usually bring 2 stacks of both)

Have the blood bags on you use the parachute as soon as you are picked up it will stay deployed until your feet hit the ground. (Works best with two players)

To get high efficiency you need to let it eat a lot of blood.

Prepare a few hundred blood packs get a tame they can grab like mochops put the blood packs into its inventory and lead the desmodus to it. They will grab it and then let it fall down and fly around for a bit u till they grab it again. This will take a while every time it grabs it the taming efficiency will rise by a few percent. Sometimes the desmodus will fly to far and not go back then you need to guide it back to the mochops. Once taming efficiency is at 100% you need to let it grab you to finish the taming. For this it's good to have blood packs in your inventory and maybe a parachute as they will let you fall down once they are tamed.

Waterfall cave is an easy one. Get in on a dino, tease out the bats, lose aggro range to separate them then come back on foot and let any level pick you. Surrounding area is relatively safe.

Even easier when you have a bat. Do the same thing but this time kill the low level ones when you’re out of the cave and then let your high level bat pick you. Good luck and don’t forget parachutes!

— pigeonfist

Baby Desmodus WON’T eat cooked meat, so don’t put that in your feeding trough or they will die like mine😞

Glider suit beats out Parachutes ALL DAY when you're dropped while taming - then you can steer them towards a safer point or even get away if you were grabbed by others than the ones you want to tame

They do not eat cooked meat; even as babies on a Maewing - use preserving salts to keep raw meat and blood bags on Maewing longer with less spoil, for babies

To tame with 100% effectiveness, use a daeodon with a high level of health + turn on passive heeling + put meat in it. Whistle a Deodon into Desmodus' aggro zone and watch it reach 100% efficiency, then mount a Deodon with Bloodpacks in your inventory and tame it. Sometimes you need to feed the Deodon to Desmodus a few more times.

Try trapping it with a tame if you’re having a problem of it flying too high up to aggro onto it.

Build a big cage by the cave. Bring the one you want into it. Have high health deaodons on passive healing and food. Sit back and watch there effectiveness go up. Super easy

Use tek pistol on heal mode to increase taming efficiency to 100%

Level up Health in a moschops and have it pick up the moschops instead of you to gain taming efficiency, use high ceiling argy trap to trap them and toss a moschops in it with blood packs on moschops inventory.

Best tamed with a daeodon - due to the larger health pool vs other creatures they can pick up

block the entrance of the waterfall cave with stone doorways. you can run in, lead them to the entrance, they get stuck but you can look at them and kill the low levels you dont want, then use a cryopod to throw in your moshops and watch its effectiveness with the tame tracker. if theres more than one bat, both will take turns draining the moschops, but it will not change the effectiveness. practice running out the cave, theres a specific path to get out without getting stuck on the ground.

Okay, this is how I tame these guys.

1. I go into the cave of Desmodus behind the waterfall in the spawn map.

2. I spyglass them and look at their levels.

3. I will then net projectile (or if you can, kill) the lower level Desmodus.

4. I kite the high level or desired Desmodus out of the cave before the others become unprojectiled.

5. I cryopod my Dino I used to kite it out. (Or you can use the glider skin, if you know how to use it!)

6. I let it pick me up and let the taming begin!!

Hope this helps you!!! Good luck on getting a Desmodus

Use a high level health daeodon after 21:00h. Their efficiency goes up faster!!!

While taming the bat take lots of parachutes, blood packs, and sleeping bags :) also when the taming bar gets to (70+ %) let it drop you to your death and take any tame you have (full of blood packs)(can be carried by the bat) put on passive and wandering and kite the bat to your tame and watch the taming effectiveness go up to 100% then put the potion (blood potion) in your hot bar and spam it until it gets close enough to pick you and it will finish the tame! 😏👍

If you feed it a small herbivore (moschops works well) before or during taming the taming effectiveness will stay up more. Up

They can have different speed stats when tamed, it seemed random but they can have upwards of 285.5%!

When taming it make sure to feed it blood packs, whenever you are close to taming it (70-80%) try to escape then just like the blood stalker you need to let it eat a tame (moschops work the best) when trying to get it to pick you up make sure to move around. And finally whenever you get 100% effectiveness using a couple well leveled moschops youll be able to finish the tame and get a 100% effectiveness bat

They can be found in caves around the map while for me they also spawn in and around the blue ob although while taming they can’t be trapped they need an open space