To unlock The Tower of the Elephant trophy in Conan Exiles, you will need to kill something by standing on its head.
The easiest way to do this is in co-op with another player using the settings below:
Main Menu >
Single Player/Co-op > Press

to Enable Co-op
When the game loads, Press

and select
SettingsUse

/

to select
Server SettingsSelect
GeneralPress

on
Make Me AdminPosition yourself on a rock or so that you are stood above your co-op partner, and drop down so that you are stood on their head (this might take a few tries to get it right).
Once you are balancing on your partners head, open the Admin Panel and massively over-encumber yourself with items such as beds and add 1000s of them. Eventually, you will weight so much that your partner dies.
When they do, The Tower of the Elephant trophy will unlock.