KJ wants me to make a "cyberpunk restaurant management game." Not sure where to start.
Step one: Realize you're not really the first to do something like that and take inspiration from what came before:
http://kiririn51.itch.io/valhalla-barStep two: Figure out what the hell players are gonna be doing. This is gonna be the hard part because it's difficult to make customer service an interesting thing to do for any period of time. I suggest using it as a framework for some other kind of things that players can do. Recettear still had you fight through dungeons, it wasn't all just sitting around in the shop, haggling. You can make the restaurant a front for some sort of rebellious scriptkiddies or mob drug house or cyper espionage outfit and let the players manage those things as well as working the shop to keep their cover. OR if you really want to keep them in the shop, make sure there is a big world outside that shop and that it is constantly smashing in with new opportunities, struggles and interesting scenarios for the players to handle. No one wants to play or GM a game about getting some asshole with a purple mohawk and spandex bodysuit a very specific coffee order. At least not for long.
Step Three: Remember, cyberpunk has a particular look to it in most places, but it's the feel that really defines it. Cyberpunk is all about a specific set of fears about our current first world zeitgeist, and is the logical end to those fears, satire through exaggeration.
1.Corporations have too much power.
Everything is privatized, everything is for profit, everything is in the hands of vast, careless, superpowerful organizations that care about profit for more then they care about human life or dignity. Government is either replaced by them, or puppeted by them. The laws are in service of making money for choice few, while the majority of people are at best, living semi-comfortable lives as mindless consumers, and at worst, rotting in a shanty town that is continuously shot up by the cyber police for the crime of not buying enough designer blue jeans.
2.There is a massive disparity in wealth.
The middle class is basically gone, replaced by a stratified working poor. You know those areas in china were one guy owns a factory and he's super rich, while everyone else lives in giant, dense housing projects or tiny apartments? It's that, but everywhere. It might not be immediately obvious with all the high tech goodies everywhere, but that holocube or pleasure-net helmet exist in much the same way that TV does today; even a poor man can save up and get himself a flatscreen, though the irony of it will be lost on him. Remember, that generally Cyberpunk heroes are not from wealthy backgrounds and are often quite poor. Hiro from snowcrash lived in a shipping container if I remember right.
3. Technology is a yoke used by the powerful to enslave the masses or fight amongst themselves.
Corporations create and control the best tech. They use technology to distract workers into not rebelling against the horrible conditions they live in. They use it to empower private security to fight against rebellion, they use it to arm corporate spies, they use it to benefit themselves. Those guys in shadowrun are always using illegal stuff meant for the army and private security right? They're not giving high tech medical treatment out to Anyone who doesn't own a yacht right?
4. Morality of Technology
A generalized thing relating to the morality or philosophy of the use of technology. Usually relates to things like cloning, the internet, AI, and the like. But could honestly relate to just about anything that causes moral conflict in terms of the use of technology. Hell, you could do this with cavemen. Fire clearly comes from the gods, but people are using it to do mundane and profane things like cook meat or warm their feet. It all depends on the morality and beliefs of the culture in question.
This is why all cyberpunk heroes are scrappy punks with Mohawks, dyed hair, and lip rings. Cyberpunk is about capitalism, technology and conformity run amok, so the protagonists are gonna be people who embody the antithesis of that. So long as you stick to those major ideas, you can have literally any aesthetic and it will still be cyberpunk at heart. Hell, you could do Victorian-style cyberpunk, where the east india company has inserted a clockwork replica of the queen into power and they're now patrolling London in giant zeppelins while steam-powerarmored soldiers subjugate the working class and the distant jungles of darkest Africa with equal disregard for human life. I think there's a name for something like that....if only there were some convenient "Punk" permutation name to let me remember it!
Or if you've got really big balls, do prehistoric or Sumerian Cyberpunk.