In this day and age, you use PCs to develop games for C64. You're able to do stuff you couldn't before because now you have the capacity to precompute an compre

In this day and age, you use PCs to develop games for C64. You're able to do stuff you couldn't before because now you have the capacity to precompute an compress a bunch of tables and such. And you use modern developer tools (assemblers, etc -- all on the PC) and test the stuff on emulators. (It still works on the real HW.) I know this because a colleague in the office is still active in the demo-scene (yes, it's still active) and participates each year in competitions.