A blast from the past: a scan of the work I did for my first keygen back in 2000.
I reverse engineered the official TMG Keygenme (#1) using a printout of W32Dasm output.
It took me weeks, but I was damn proud at the end :)
RE tools certainly have evolved since...
Crackme link: https://crackmes.one/crackme/5ab77f6533c5d40ad448cb8d