r3dh4wk on 4:57 PM 09/27/2021: Key solution: https://i.imgur.com/o19EpaI.png
Legacyy on 11:35 PM 09/28/2021: Cheers for the challenge dude, my writeup is here: https://github.com/iilegacyyii/Writeups/blob/main/Crackmes/Marquires%20CrackMe_V3_Marquire.md
Solution by Blepperton: Very easy crackme, messy asm code though. Compiler code that is. Have fun with my writeup, i tried making everything as beginner friendly and visibile as possible. No keygen needed as there is nothing to be calculated and we are working with a static key. (I have no idea why others wrote one, there is nothing to be generated lol)