Inspired by a play by play game that I consider to be interesting ive started basically brainstorming my own addition to the rules I ask people for help in this endeavour

Rules already in place I know of

Humans are dominant and have no idea other races exist

Guns are non magical perminantly no exceptions

Other races must hide themselves

Sylvan is the magic common 

Magic makes tech go heywire

Start of brainstorming 

There's a suspicion level in each town dependent on how prevelent monster attacks are making the locals more hostile if your a demihuman

The only people with magical suplys are you and the people watching over you 

There is both a mortal and a magical black market

Head officers know to bind hands and mouth when arresting a spell caster others are told its for own safety. 

It is easier to sneak around but if spotted you will be caught on camera 

Druids are less prevelent due to people losing hold of there natural side for mechanical 

Preplanned base int for an area

I would appreciate any assistance if you can provide it.