>>96372932 (OP)
>What makes Cyberpunk so appealing
2020, RED and 2077 all have a lot of character and atmosphere that you just don't get in other works, and it's all thanks to Pondsmith being an autist inspired by Neuromancer. Though he has his faults (African lore is basically boring ass afro utopia where niggas focus on colonizing space).
>why hasn't it caught on compared to other genres and systems?
2020 is a crunchy system that is deceptively difficult, but actually gets a lot better once you pay attention and don't overload every encounter with unnecessary rulings and other shit. RED is a messy, unbalanced system with meme supplements that can't find it's footing and continuously creates frustrating design decisions. Despite that, it's one of the most popular systems right now, very welcoming to normies.
Simply put, these games lag behind because they're either very old and are not welcoming to new players, or have a problem of being all over the place. Not to mention that RED failed to immediately capitalise on release of 2077 and Edgerunners and took a while to release a kit for that, and from what I've heard, normies specifically wanted to play in that setting.
>>96373497
Go to the respective thread and start with RED. If you want crunch, find books for 2020. It's a pretty simulationist game that stays fun without becoming obnoxious, and its respective supplements mostly just give you more lore and guns/cyberware to toy with, and the occasional role/skill that almost never comes up in your games. Except if you're actually cool and wanna allow Power Armor Operators in your game.