If you're like us, you got and see once you learn that you can mount certain enemies in Horizon Zero Dawn. You may be wondering where you can find these writable enemies, and how many different types there are. If so, you've come to the right place.

Overriding, which is Horizon Zero Dawn's term for mounting, is expanded over time. As you visit various cauldrons, you'll unlock access to a greater breadth of enemies to override.

Although there aren't that many enemies that you can override, there are enough that you'll see progression throughout the game. With that said below you will find a list of enemies, at which cauldron you will meet them, and whether or not they are mountable.

PSI Cauldron 

Watcher: Not Mountable 
Strider: Mountable 
Redeye Watcher: Not Mountable 
Broadhead: Mountable 
Charger: Mountable 
Tallneck: Not Mountable  

Sigma Cauldron 

Grazer: Not Mountable
Scrapper: Not Mountable
Lancehorn: Not Mountable
Sawtooth: Not Mountable 

RHO Cauldron 

Longleg: Not Mountable
Trampler: Not Mountable
Shell-Walker: Not Mountable
Snapmaw: Not Mountable 

XI Cauldron 

Glinthawk: Not Mountable
Fire Bellowback: Not Mountable
Freeze Bellowback: Not Mountable  

Zeta Cauldron 

Rockbreaker: Not Mountable
Thunderjaw: Not Mountable
Stormbird: Not Mountable