The following is a description on how to patch "Darkseed" to
disable the keydisk check made when you start the game. First
you need to install the game to your hard drive. Then copy the
files DARK_UNP.BAT and DARK_UNP.DAT (included with this file) to
the same disk and directory as your "Darkseed" program. The DOS
program DEBUG must also be copied to the same location or must
be available along your PATH.

Then just run the BAT file at the DOS prompt:

DARK_UNP

Now the keydisk check will be bypassed and the game will start
without interuption. This patch makes changes to the TOS.EXE
file.

Have fun, Scumbucket!