Cheers
If you haven’t played these; things like “skins”, or armor packs, in game dances, etc. Are offered for purchase. They are explicitly for cosmetic enhancements and not game advantages (IE: changing your characters color won’t make you have a higher attack damage)
If you go large scale you could also do what battlefield did and rent out private servers, where people got to host private games with their customized settings.
Lastly, this one I don’t agree with as much, but you could offer quicker lobby times/higher priority in queue.
Ps: You can also do DLC’s with extra maps or something.
Cosmetics are expensive for mobile hardware as they create a tons of new assets to show to players. GPU can only hold a 4096*4096 spritesheet which correspond basically to 6 different characters with 5 animations each for a 2d game. It's not a lot... Spritesheet swaping is expensive in CPU time as it makes a new draw call. So the optimization part of displaying many different assets is an important task I don't want to focus on right now. Additionally I have to design the new assets. It seems to be a late solution when the game is already profitable and monetized... Or when you have 10s of thousands in investment.
Paying for beeing served in priority is quite fair. In our society, time is money and you can pay for bypass queues. It not makes the game a pay to win but a pay to play/not wait. It's fair for everyone.
I don't really like when games make players paying without offering them a significative advantage.
Additionally, for games only based on gameplay it could work. But for game with economy it doesn't click as if you don't have a white market, you will see a black market appear.
Glad I was able to give you an idea, thanks for explaining. It’s cool to learn a little crash course on this.
Good luck!