GEMMA.ZIP should contain the following files:

8x16.FNT      Loadable Font File
ANOT4.DRV     Video Drivers
DESC.SDI      Short Game Description
FILES.LST     <this file>
FILE_ID.DIZ   Long Game Description
GO.BAT        Simple Way to Start the Game
GO2.BAT       Alternate Simple Way to Start the Game
PIC_1.PIC     Loadable Picture File
PIC_2.PIC     Loadable Picture File
README.1ST    Game History and Notes 
GEMMA.EXE     GEMMA by Spaceways, Playable Game
NEW3.PAL      Loadable Palette File
UNIVBE.EXE    Universal VESA Driver

If any of these files are missing, your zip file is corrupt,
and you'll have to download again.