ll_frac by Lord Logics /code/effects/land/ll_frac.zip	10 Jan 1997 (catalog date) 33,813 bytes
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A Fractal landscape generator - Creates a fractal landscape to a .asc file. Looks mostly useless to me with so-so source, but no comments.

ll_land by Lord Logics /code/effects/land/ll_land2.zip	10 Jan 1997 (catalog date) 147,335 bytes
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A landscape routine similar to that at the end of unreal - the xmode routines bug out, but atleast there's an explanation of the effect.

Keyboard Routines by Lord Logic /code/hardware/keyboard/ll_kbd.zip	26 Feb 1998 (catalog date) 52,600 bytes
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Lowlevel keyboard routines.

Asychronous communitcations code by Lord Logics /code/hardware/serial/ll_comm.zip	10 Jan 1997 (catalog date) 56,754 bytes
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Source for "asynchronous" comm connections - A library meant for opening COM lines and other serial line connections. It's supposedly asynchronous (but maybe in a later version for this only supports one). Not too demo scene relevant, but it could make for great modem-modem networking in a game.