English Amiga Board - View Single Post

Galahad/FLT · 21 November 2014, 00:16

The cheat mode you refer to doesnt do anything.

Nice work. I did the ecs version as well but got fucking fed up playing it over and over again to playtest it.

I've written a doc about how i cracked the ecs version and found thay Jurassic Parks legend wasnt quite so strong.

I was able to crack the options.exe file without touching ANY part of the copylock or without removing ANY checksum

EDIT: Alas dude, you need to crack the Copylock you missed

In the 2D section of the game, if we assume your machine you crack on is a 512k chip/512kslow, if you look at memory address $c22f06, this is a pointer to filename "32rex3.fed", inside that is an encrypted Copylock.

The way I cracked this particular one was to depack it, and then decrypt with the word $DEAF, crack the Copylock, and then re-encrypt again, repack and then put back, that way I didn't need to touch any of the actual game code that does several checksums on that area to see if you've stopped the Copylock from being loaded and run.

21 November 2014, 00:16	#7
Galahad/FLT Going nowhere Join Date: Oct 2001 Location: United Kingdom Age: 50 Posts: 8,986	The cheat mode you refer to doesnt do anything. Nice work. I did the ecs version as well but got fucking fed up playing it over and over again to playtest it. I've written a doc about how i cracked the ecs version and found thay Jurassic Parks legend wasnt quite so strong. I was able to crack the options.exe file without touching ANY part of the copylock or without removing ANY checksum EDIT: Alas dude, you need to crack the Copylock you missed In the 2D section of the game, if we assume your machine you crack on is a 512k chip/512kslow, if you look at memory address $c22f06, this is a pointer to filename "32rex3.fed", inside that is an encrypted Copylock. The way I cracked this particular one was to depack it, and then decrypt with the word $DEAF, crack the Copylock, and then re-encrypt again, repack and then put back, that way I didn't need to touch any of the actual game code that does several checksums on that area to see if you've stopped the Copylock from being loaded and run. Last edited by Galahad/FLT; 21 November 2014 at 00:59.