What did people use back in the day to make games on an Amiga?

What did people use back in the days to make games and stuff on an Amiga? Every tutorial I see uses modern PC-based stack.

And I don't mean what did the big guys use. I mean, what could an average Amiga Joe with a stock A600 and no hard drive easily get their hands on and use at home on the TV? The poor-man's stack.

As in, what is the Amiga equivalent of typing assembly code directly into a machine code monitor on a C64?

I moved from C64 to a 286, and missed the entire Amiga era, but I'd like to catch up and check it out!