Filed pursuant to Rule 424(b)(3)
                                                      Registration No. 333-83492

PROSPECTUS SUPPLEMENT NO. 11
TO PROSPECTUS DATED JUNE 3, 2002

                                  $175,000,000

                           GTECH Holdings Corporation

               1-3/4% Convertible Debentures due December 15, 2021
                     fully and unconditionally guaranteed by

                GTECH Corporation and Certain of its Subsidiaries
                                     -------

         This prospectus  supplement no. 11 relates to the resale by the selling
securityholders  (including  their  pledgees,  donees,  assignees,  transferees,
successors  and  others  who  later  hold  any  of  their  interests)  of 1-3/4%
Convertible   Debentures   due  December  15,  2021  issued  by  GTECH  Holdings
Corporation  and the shares of GTECH common stock  issuable  upon  conversion of
those debentures.

         This  prospectus  supplement  should  be read in  conjunction  with the
prospectus  dated June 3, 2002, as  supplemented  June 12, 2002,  June 18, 2002,
June 26, 2002, July 19, 2002,  August 21, 2002,  September 24, 2002,  October 1,
2002,  November  13, 2002,  January 3, 2003 and March 25,  2003,  which is to be
delivered  with  this  prospectus  supplement.  This  prospectus  supplement  is
qualified by reference to the  prospectus and prior  supplements,  except to the
extent  that  the  information  in this  prospectus  supplement  supersedes  the
information contained in the prospectus or prior supplements. Terms used in this
prospectus  supplement  and not otherwise  defined herein have the meanings with
which they are used in the prospectus.

         Neither the Securities and Exchange  Commission,  any state  securities
commission  nor any other  regulatory  body has approved or disapproved of these
securities  or  determined  if this  prospectus  is  truthful or  complete.  Any
representation to the contrary is a criminal offense.

         The table of selling  securityholders  contained in the  prospectus  is
hereby amended to add the entity named below as a selling securityholder:



                                                          Aggregate                       Number of Shares   Percentage of
                                                       Principal Amount   Percentage of    of GTECH Common  Shares of GTECH
                                                        of Debentures       Debentures     Stock That May    Common Stock
                         Name                          That May Be Sold    Outstanding       Be Sold (1)    Outstanding (2)

                                                                                          
Credit Suisse First Boston LLC........................     $50,000              *               1,818              *


*  Less than one percent (1%).

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(1)      Assumes  conversion  of all of the holder's  debentures at a conversion
price of $27.50 per share of common stock.  This conversion  price is subject to
adjustment,  however, as described under "Description of  Debentures--Conversion
Rights--Conversion Price Adjustments" beginning on page 19 of the prospectus. As
a result,  the number of shares of common stock issuable upon  conversion of the
debentures  may increase or decrease in the future.  Does not include  shares of
GTECH common stock that we may issue upon  purchase of  debentures  by us at the
option of the holder.

(2)      Calculated  according to Rule  13d-3(d)(i)  of the Exchange Act,  using
56,699,012  shares  of  common  stock  outstanding  as  of  April  3,  2003.  In
calculating this amount for each holder, we treated as outstanding the number of
shares of GTECH common stock  issuable  upon  conversion of all of that holder's
debentures,  but we did not assume conversion of any other holder's  debentures.
Does not include shares of GTECH common stock that we may issue upon purchase of
debentures by us at the option of the holder.


         Information  about other selling  securityholders  will be set forth in
additional prospectus supplements, if required.

                                  -------------

         Investing in the  debentures  involves  risks that are described in the
prospectus,  including the section captioned "Risk Factors"  beginning on page 6
of the prospectus.

            The date of this prospectus supplement is April 29, 2003