When I read the fantastic “Slick Thames” hack, I was blown away. This is what a cyberpunk game should look like, I thought.
And being the rules tinkerer that I am, I began writing my own Into the Odd cyberpunk game, took a portion of Slick Thames with me, and added a lot of Shadowrun and Cyberpunk 2020 stuff. The result is a very rough — very rough — game that allows you to choose between Shadowrun style or Cyberpunk 2020 style, complete with (very freeform) hacking and magic rules.
I left gaps intentionally. For instance, I didn’t explain what spells can do, or spirits. This is your job as a GM.