Since it seems like nobody knows what this does:

-It poops massive poops, the largest poops you’ll ever find.

-It’s a temporary tame since it can’t eat, so it dies from hunger.

-It’s the strongest Dino, and the best way to tame is putting cannons on quetzals and flying far enough it can’t reach you and you can still shoot it. Once it’s unconscious putting the saddle in its inventory will instantly tame it.

-On ark mobile, if you do the kill giga quest, you get a free titanosaur platform saddle.

-Although it’s tempting to build huge bases on it, since it’s a temporary tame it’s not worth it to try super big bases.

Like so people see!

There is a few things you need to know about these guys:

Biggest Dino on Ark

Can whoop Giga’s.... with ease

Majestic

But they somehow have a brain disorder that limits them to not eat...

You can feed the titan in single player, well in multiplayer you can't feed them which makes titan-food=limited time tame.so taming titans in single player is worth.

Ok guys so all you need to tame it is a titanosaur platform saddle. It doesn’t eat anything and you don’t need any narcotics to tame it. Once you knock out the titan, place the saddle in it’s inventory and equip it to the titanosaur. Boom you just tamed a titanosaur! You’re welcome!

!!!! Too feed them there's a setting called allow raid dino feeding in the misc settings where the titan will eat the food in its inven save everyone's titan :D

On mobile it will last.. perhaps forever on singleplayer

Remember only lasts for 16-24 hours before it starves and dies (unless Raid Dino Feeding is enabled on your server). Only tame if you are planning to do a huge raid in that time.

According to the dossiers, the reason why the titanosaur doesn’t eat is because it prefers to die rather than being held in captivity forever. And for single player, it eats because it is glad to serve a a master which is one of a kind (you are the only human because it’s single player). These are great for single player, despite the fact that you can’t level it stats, only torpor, but it’s stats are already OP, so I guess it’s plausible.