How about some challenges which aren't specific for battlepass.
Something like "lifetime" challenges, where you see your progress and complete them besides the battlepass and gain a title as reward. The same System is used in the game "Destiny".
An example for challenges are: Destroy 1million metin stones.
Reward (title): Hero (just an example)
Another one: Kill 2k Death reaper
Reward (title): Demon Slayer
For the titles u could implement an Option where you can select the specific title and change it. So you can change your "chilvaric" for "demon Slayer" for example.
There could be spcific tasks and challenges (on time) when its halloween Event. For example 20 halloween based challenges where you earn an exclusiv event based title: "Dark knight".
Something like "lifetime" challenges, where you see your progress and complete them besides the battlepass and gain a title as reward. The same System is used in the game "Destiny".
An example for challenges are: Destroy 1million metin stones.
Reward (title): Hero (just an example)
Another one: Kill 2k Death reaper
Reward (title): Demon Slayer
For the titles u could implement an Option where you can select the specific title and change it. So you can change your "chilvaric" for "demon Slayer" for example.
There could be spcific tasks and challenges (on time) when its halloween Event. For example 20 halloween based challenges where you earn an exclusiv event based title: "Dark knight".