Exhibit 10.18

April 1,
2000

GameTech
International, Inc.
Bingo Technologies Corporation
2209 West 1st Street, Suite 113-114
Tempe, AZ 85281

Gentlemen:

This
letter amendment (this "Amendment") is to confirm the changes agreed upon between Wells Fargo Bank, National Association ("Bank") and GameTech international, Inc.
("GameTech") and Bingo Technologies Corporation ("Bingo") (individually and collectively, "Borrower") to the terms and conditions of that certain letter agreement between Bank and GameTech dated as of
August 19, 1998, as amended from time to time (the "Agreement"). For valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Bank and Borrower hereby agree that
the Agreement shall be amended as follows to reflect said changes.

1.    The
first paragraph of the Agreement is hereby amended to add and include Bingo as a "Borrower" as defined therein, and Bingo is hereby fully obligated for all
obligations under, and subject to all covenants, conditions, provisions and agreements set forth in, the Agreement as if originally executed by Bingo. Unless otherwise set forth in the Agreement, each
reference in the Agreement to "Borrower" shall mean Bingo and GameTech, collectively and individually.

2.    The
Agreement is hereby amended by deleting "March 31, 2000" as the last day on which Bank will make advances under the Line of Credit, and by substituting for
said date "April 2, 2001," with such change to be effective upon the execution by Borrower and delivery to Bank of a promissory note substantially in the form of Exhibit A attached
hereto (which promissory note shall replace and be
deemed the Line of Credit Note defined in and made pursuant to the Agreement) and all other contracts, instruments and documents required by Bank to evidence such change.

3.    Paragraph
11.4. is hereby deleted in its entirety, and the following substituted therefor:



4.    Paragraph III.1.
is hereby deleted in its entirety, and the following substituted therefor:



5.    Paragraph
1.2. is hereby deleted in its entirety, and the following substituted therefor:



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6.    Paragraph
V.3. is hereby deleted in its entirety, and the following substituted therefor:



7.    The
introductory paragraph in Paragraph V. is hereby deleted in its entirety, and the following substituted therefor:



8.    Paragraph
V.9. is hereby deleted in its entirety, and the following substituted therefor:



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9.    Paragraph V.11.
is hereby deleted in its entirety, and the following substituted therefor:



10.  Except
as specifically provided herein, all terms and conditions of the Agreement remain in full force and effect, without waiver or modification. All terms defined in
the Agreement shall have the same meaning when used herein, This Amendment and the Agreement shall be read together, as one document.

11.  Borrower
hereby remakes all representations and warranties contained in the Agreement and reaffirms all covenants set forth therein. Borrower further certifies that as
of the date of Borrower's acknowledgment set forth below there exists no default or defined event of default under the Agreement or any promissory note or other contract, instrument or document
executed in connection therewith, nor any condition, act or event which with the giving of notice or the passage of time or both would constitute such a default or defined event of default.

Your
acknowledgment of this Amendment shall constitute. acceptance of the foregoing terms and conditions.

|                                         |                    |  | Sincerely,                                
|---------------------------------------- | ------------------ |  | ------------------------------------------
|                                         |                    |  | WELLS FARGO BANK,
    NATIONAL ASSOCIATION
|                                         |                    |  | By:                                       
|Acknowledged and accepted as of 4-1-2000
|GAMETECH INTERNATIONAL, INC.             |                    |  |                                           
|By:                                      | /s/JOHN J. PAULSON |  |                                           
|Title:                                   | CFO                |  |                                           
|BINGO TECHNOLOGIES CORPORATION           |                    |  |                                           
|By:                                      | /s/JOHN J. PAULSON |  |                                           
|Title:                                   | CFO                |  |                                           

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