If you actually want to keep the titan theres an option on the server settings where the server will allow the titan to eat and be kept
Titanosaur
The Titanosaur is the largest creature in Ark whose stats top the charts across the board. This sauropod's massive platform saddle allows tribes to build large fortresses on its back — if they're skilled enough to tame it.

Player-written tips for taming, using, and fighting the Titanosaur in ARK: Survival Ascended & Evolved.
Use the extinction Mek to knock it out with the canned it provides
For anybody who’s wondering on mobile they start to flee at around 90000 HP
If one is near your base and you don’t want your tames to die, take down your spikes. They are affected by spike walls!
Solo taming no Quetzal: tek armor, a stack of element, and a lot (I mean A LOT) of rpg and rocket launchers. Takes a super long time but is doable
This is actually a temporarely tame, since it cant eat. It dies from hunger
Today my friend went to fight a titan saying “it is easy” but promptly killed our argent heard (one attack) so we had no more females.
You can ask admin of server if u can keep the titanosaur and the admin can change the settings to make it feedable
I’ve encountered 2 on my game before once on carnivore island and once in the snow area before I say it in the snow area there was loads of rexs all over the place so if u got to an area where u can find them and there’s a bunch of rexs you’ll probably encounter one
Easy enough to drown it if you really want to kill it...
Wanna take this in single player? I got a good tip for you: don't
They never stop freaking moving, so when I have your quetzal aligns to shoot the cannon it just moves and you HAVE to hit it's tiny head, not a little bit below, not halfway down it's neck, IT'S TINY BRAIN HEAD
When you are trying to know it out you should use a quetzal with cannons near the back so you can fly away if it gets close the pelt it cannon balls
If yo play on mobile use a rocket launcher and a royal griffin
Don't punch this big butted fella unless you want to be a flat pancake : p
I've been living in Herbivore Island most of my playthrough, at some point i had to move my tames and create a new base. But when i re-visit Herbivore Island, a freakin TITANOSAUR was there
You can use a flyer that has a flatform saddel and put cannons on it and just keep shoting it with cannons cuz trq darts does not work on it
I was trying to lead this thing into the ocean with my tapejara and successfully did it (took me 1 hour), but unfortunately it was night time and I couldn't see the titano and when I decided to dive to take a look, all I see is a dead titanosaur
In mobile single player they don't die Really they don't die they eat
Tame on crystal isles, lasts a week or so and we have wiped most of the server
They do eat as long as athe setting 'allow raid dino feeding' is on