HackFest 2014
Thorin's Charge Card by John Lane

It's short enough to type in by hand, rather than putting it into a disk image.  This is Wizardry 4 patch that gets you out of look up the number in the copy protection. I explained to one of the judges how I did it. If you have a sector editor and Return Of Werdna side A. The patch is applied to two sectors. Three bytes on one sector and 35 bytes on the other sector. Here are the changes. Track 1 Sector B Byte C9 normal values are B1 9E 0A and change them to 4C 48 DF. The other one is Track 2 Sector C Byte 48. Normal values are all 00's from here to the end of the sector, that's because it's unused and a good place to tuck a small machine language program. Here are the hex values to the machine language program. A5 9E C9 81 D0 17 A5 9F C9 A9 D0 11 A5 BE C9 CC D0 0B A5 BF C9 77 D0 05 38 A9 80 D0 03 B1 9E 0A 4C CC D0. In case you prefer a disassembly here it is. ORG is incorrect though.

2000:LDA $9E
CMP #$81
BNE $201D
LDA $9F
CMP #$A9
BNE $201D
LDA $BE
CMP #$CC
BNE $201D
LDA $BF
CMP #$77
BNE $201D
SEC
LDA #$80
BNE $2020
201D:LDA ($9E),Y
ASL
2020:JMP $D0CC

The name of the hack is called Thorin's charge card by John Lane.
The number the game will pull out is (actually the first # in the book)
1080-1086-1193
And the validation code is
8771