Firstly, you need mutagen, and a lot of it for a high level. On my 5X taming servers, it was roughly 4% per feed.
To actually tame them, you need to do the following:
1) find the creature. They are always in space, and have the most probability of appearing at the top of the spawn zones in Space. Look around the asteroids at the North and South ends, that's where I tend to find them.
2) you need to take it down to below 10% of it's health, where it will start glowing blue. It's breath attack is annoying because it stuns you for 5 seconds, and it breathes on you like a person with Halitosis does on the bus.
3) once it's health is down, you need to get close and ride it like you would an equus. The mutagen should be in slot 0 because every time it does a "barrel roll", you should be feeding it.
I haven't found a way to not get bucked off 2-3 times, depending on the level, and if it aggros Astrodelphis, they can slow you down and allow it to get away and heal. It heals pretty fast, not as fast as a reaper though.
Using the creature... It's a Tek variant wyvern. It's breath attack doesn't seem to do damage, but it has a stun effect that let's you get a few free chomps. The longer you hold the breath action button, the more stamina you burn, so only hold it long enough to immobilise your victim
People never read non-violent incorrectly. It doesn’t mean it isn’t hostile, it means you don’t beat it into unconsciousness as it tries to run away because it knows you’re about to halfway murder it, non-violent in this case is a bull ride.
Contrary to what you may hear, the Voidwyrm is one of the simplest creatures to tame in ARK. The issue is attempting such a thing without decent bait and strategies.
Now for the tips themselves, so here we go:
1- Humans don't make good baits. We have relatively low health and can't shoot while stunned. Spoilers: You need to hurt the Wyrm, oh, and it also can stunlock you to death if you are not careful enough. Tames with high HP (20k+) and OK saddles (40+) are enough to even the hardest hitting of their tames.
2- They can and will destroy all kinds of structures. Trapping them with man-made structures is almost impossible, and baiting with structures is impractical, unless you get lucky enough to trap them a corner. Another spoiler: They not always spawn near natural map structures, and kiting them isn't very pleasant...
3- They can steamroll your precious Hover Skiff. Any and all Voidwyrms instantly destroy Hover Skiffs, no mercy will be shown. As Skiffs are the fastest way to search for such a (now) very rare creature, it's advised that you tame them where they spawn, and place your Skiff away from the area.
4- They take reduced damage from TEK weapons; This, however, can and should be used to your advantage, as they need to be brought at very low health to be tamed. Below 10%, to be precise.
TL;DR: Let your creature tank it, carefully shoot them, mount when ready, use Mutagen when they roll. Repeat any of these when needed if bucked off.
Finding them is now the real pain. If you use the Wiki Spawn Map, uncheck the "Space_Gen2" box. You are VERY unlikely to find them in these areas. To the ones that don't: stay to the West of 50 Longitude.
In any case, try to stay at more or less the level of the bridges.
The simple and most effect way that I found involves the use of one soaker, a pump shotgun, and some ammo and mutagen of course 31 to be safe.
Step one: Find a voidwyrm that you want to tame and remember it’s location.
Step two: You will need to summon your soaker via cryo pod on either 1 of 3 things. A nearby space asteroid, the space biom’s structure or the side walls.
(Losing your soaker is highly possible I do recommend using a tracker node on your soaker to find him later)
Step three: Get the voidwyrm’s Aggro and lead it to your soaker.
Let me summarize what you must do as best I can to get you to step four…
You might think why can’t I summon my soaker in space, you could but most of the time the agro will switch to you and not your soaker.
Having the soaker grounded and on foot. As long as you’re furthest away from the voidwyrm than your soaker is. The aggro of the voidwyrm will always go to his closest target.
At this point you want the voidwyrm to shock your tame, not biting it. If the voidwyrm is biting he’s mostly flying around and will eventually aggro on to you. If the voidwyrm is shocking he will become stationary indefinite and continue to shock your soaker.
Step four: Get close, but not closer than your tame is, start shooting the voidwyrm with your pump action until the voidwyrm is ready. A sound and blue flames will come from the voidwyrm which means that it is ready to tame. Move quickly to the void and mount him.
At this point your traps failed because this tame can destroy metal structures and lower tier structures, your probably saying finally I got one… so leave a like send my post up and I hope this helped you as much as it did with me. Happy Ark Hunting everybody
Unpod a giga, it will hold agro and tank all damage until you drop its health low enough to mount. Easiest method. Staying mounted can be a pain due to lag or render (when you get to close to walls). If you get dismounted use tek punch to dodge attacks and make your way back to giga and Mount the giga it will retain agro again and get you another chance at it.