should you suggest that I mark those items, like adding sparkles to them?
No, let people search if they want their rewards. The point of exploration disappears if you show where everything is.
can you tell me more about the cloth system?
Plenty of examples of this system can be found in Jap-rpgm/wolfRPG games like
this one.
And even Chinese games like
this one.
You will need to do your homework researching this topic and the rpgm engine if you want this system in your game.
In fact you should have done this before even thinking about making a game.
Here are some links that may be helpful:
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Figure it out.
How do you plan on entertaining your players if you have no idea what you even want in your game?
Surely you played a couple of games before, surely those games had a couple of interesting events you could mentally modify and implement in your own game. And heck even look at RL and what happens there, you could even put that into the game too.
To give a few examples: Robberies, harassment, kidnappings, hostage exchanging (since mc is basically police worker she could, for example, end up in a situation where she needs to exchange herself for a... child hostage for example and then end up getting fucked by whoever had that hostage before being rescued by allies), bullying, dealing with drunkards, violence, drugs, sexual assaults, etc. Events can be anything, they can be funny, they can be serious, they can be dramatic, they can be deadly, etc.
Heck even making your mc step into a pile of dog shit on the road by accident and making her curse at her luck would surely put a smile on some player's face. Or maybe a random dog can run over to her and piss on her leg, i can say for sure that would have made me spit my coffee. And if you make the character respond by, for example, acting very annoyed after such an annoying event happening to her then she'll surely look very life-like.
Speaking of dogs, haven't seen even a single one. Maybe add some more animals.
Cats chasing rats, dogs chasing cats, familiar things like that that make you feel like you're in RL.
Also may want to decrease the amount of npc's pointlessly shambling about and instead add ones that are actually doing something.
Well, good luck~