NONCOMPETITION AGREEMENT
                             
           By   signing  below,  I,  Kenneth  A.
Williams (sometimes  referred  to hereinafter  as  the
"Executive"), agree  to  the  terms  and  conditions  set
forth  in  this agreement (the "Agreement") between me and
CUC International Inc. (the "Company").  I am entering
into this Agreement (a) in connection with, and as
additional consideration for, the Company's acquisition,
on   the   date   hereof    (the "Acquisition"), of all of
the outstanding capital  stock  of Sierra On-Line, Inc.
("Sierra") pursuant to an Agreement and Plan of Merger,
dated as of February 19, 1996, as amended by an  Amendment
No. 1 thereto, dated as of March 27, 1996  (as amended,
the "Merger Agreement") and (b) in accordance  with the
terms  and  conditions of Section 4.17  of  the  Merger
Agreement  and Section IXB. of the Employment Agreement
(as defined  therein).  Immediately prior to the
Acquisition,  I was  Chairman  and  Chief Executive
Officer  of  Sierra  and beneficially owned 1,803,918
shares of Sierra common stock.

         1.    Confidentiality.  The Executive acknowledges that
all   secret,   non-public,   or   proprietary   information
pertaining  to the affairs, business, results of operations,
accounting  methods, practices and procedures,  members,
acquisition  candidates, financial condition, clients, customers
or  other relationships of the Company or  any  of  its
affiliates (including Sierra) that he possesses on the
date hereof and may come to possess hereafter
("Information")  is confidential and is a unique and
valuable asset of  the  Com pany  or  any  of its
affiliates.  The Executive  will  not, except to the
extent reasonably necessary in performance  of his  duties
under his employment agreement with the Company, give  any
person, firm, association, corporation or  govern mental
agency  any  Information,  except   (a)  as  may  be
required by law, court order or other legal process, (b)
as may  be  necessary  in connection with any  dispute
between Executive and the Company or any of its affiliates
relating to this Agreement or Executive's employment with
the Company or  any  of  its  affiliates, or (c)
Information  which  has entered the public domain or
becomes generally available  to the  public  other  than
as a result  of  a  disclosure  by Executive in
contravention of this Agreement.  The Executive will not
make use of the Information for his own purposes or for
the  benefit  of  any  person  or  organization.  The
Executive  will  also use his best efforts  to  prevent
the disclosure of the Information by others.

          2.   Restricted Activities
               (a)   For the period commencing on the date hereof and
ending  on  the  third anniversary of the date  hereof  (the
"Initial  Restricted Period"), the Executive will  not  make any
statements or perform any acts intended to or which may have the
effect of advancing the interest of any existing or prospective
competitors of Sierra or any of its subsidiaries or in any way
injuring the interests of Sierra or any of its subsidiaries.   During
the Initial Restricted  Period,  the Executive,  without prior express
written  approval  by  the Board  of  Directors  of the Company (the
"Board  of  Direc tors"), will not engage in competition, or directly
or  indi rectly  own or hold a proprietary interest in or be employed
by,  or consult with or receive compensation from, any party which
competes, in any way or manner with the  business  of Sierra  or  any
of  its subsidiaries, as such  business  or businesses  may be
conducted from time to time.   The  Execu tive   acknowledges  that
Sierra's  and  its  subsidiaries' businesses are conducted nationally
and internationally  and agrees  that the provisions in the foregoing
sentence  shall operate throughout the United States and the World.

               (b)   During the period commencing on the date hereof
and ending on the later of the fifth anniversary of the date
hereof  and the expiration or termination of the  Period  of Employment
(as  defined in the Employment  Agreement)  (the "Restricted  Period"),
the Executive, without express  prior written  approval  from  the
Board of  Directors,  will  not solicit  any clients of the Company or
any of its affiliates for any business of the Company or any of its
affiliates  or discuss  with  any employee of the Company  or  any  of
its affiliates information or operation of any business intended to
compete with the Company or any of its affiliates.

               (c)   During the Restricted Period, the Executive will
not  solicit or induce any person who is an employee of  the
Company   or   any  of  its  affiliates  to  terminate any
relationship such person may have with the Company or any
of its  affiliates, nor shall the Executive during such
period directly  or  indirectly engage, employ  or
compensate,  or cause  or permit any person with which the
Executive may  be affiliated, to engage, employ or
compensate, any employee of the  Company or any of its
affiliates.  The Executive hereby represents  and warrants
that the Executive has not  entered into  any  agreement,
understanding or arrangement which  is currently in effect
with any employee of the Company or  any of  its
affiliates pertaining to any business in which  the
Executive  has participated or plans to participate,  or
to the  employment,  engagement or  compensation  of  any
such employee.

               (d)   Without limiting the provisions of
Sections 2(a), (b)  and  (c) above, during the Restricted
Period,  Williams shall  not  own or hold proprietary
interest in, manage,  be employed  by  or  consult with,
operate,  join,  control  or participate  in  the
ownership,  management,  operation  or control  of any
person or entity that (i) competes,  in  any way  or
manner,  with  Sierra or its  subsidiaries  in  the
packaged   entertainment  or  education  software
business anywhere in the World as such business may be
conducted from time  to  time or (ii) markets or
distributes entertainmentrelated  software or services on
the Internet or any similar computer network.

               (e)   For the purposes of this Agreement,
proprietary interest means legal or equitable ownership,
whether through stock  holding  or  otherwise, of an
equity  interest  in  a business, firm or entity or
ownership or more than 5% of any class of equity interest
in a publicly-held company and  the term "affiliate", when
used in respect of the Company, shall include  without
limitation all subsidiaries of the Company, including
Stealth, and all licensees of the Company.

               (f)   The Executive hereby acknowledges
that damages at law  may  be  an insufficient remedy to
the Company  if  the Executive violates the terms of this
Agreement and that  the Company shall be entitled, upon
making the required showing, to  preliminary and/or
permanent injunctive  relief  in  any court of competent
jurisdiction to restrain the breach of or otherwise  to
specifically enforce  any  of  the  covenants contained in
this Agreement without the necessity of showing any actual
damage or that monetary damages would not provide an
adequate remedy.  Such right to an injunction shall be in
addition  to, and not in limitation of, any other rights
or remedies  the  Company  may  have.   Without  limiting
the generality of the foregoing, neither party shall
oppose  any motion  the other party may make for any
expedited discovery or  hearing  in connection with any
alleged breach  of  this Agreement.

               (g)   The period of time during which the
provisions of this  Agreement shall be in effect shall be
extended by  the length  of  time during which the
Executive is in breach  of the  terms  hereof as
determined by any court  of  competent jurisdiction  on
the Company's application  for  injunctive relief.

               (h)   The Executive also agrees to
indemnify and hold the  Company  harmless from and against
any and all  damages and  expenses, including reasonable
attorneys' fees and  dis bursements,  resulting from any
breach by him of  the  terms and  conditions  of  this
Agreement,  which  remedy  is  in addition to any and all
other remedies that the Company  may possess at law or in
equity.

               (i)   The Executive agrees that the
restrictions contained in this Agreement are material to
the Company and, but  for  the Executive's agreement to
comply with  such  re strictions,  the  Company would not
have  entered  into  the Merger Agreement.

          3.   Governing Law; Construction.  This Agreement has
been  executed and delivered in the State of Washington  and
its  validity,  interpretation, performance and  enforcement
shall be governed by the internal laws of that state.

          4.   Arbitration.  (a)  Any controversy, dispute or
claim  arising out of or relating to this Agreement  or  the
breach  hereof  which cannot be settled by mutual  agreement
(other than with respect to the matters for which the  Compa
ny  may,  but  shall not be required to, seek injunctive
re lief)  shall  be  finally settled by binding
arbitration  in accordance with the Federal Arbitration
Act (or  if  not  ap plicable, the applicable state
arbitration law) as  follows: Any  party  who is aggrieved
shall deliver a notice  to  the other  party  setting
forth the specific points in  dispute. Any  points
remaining in dispute twenty (20) days after  the giving of
such notice may be submitted to arbitration in New York,
New  York,  or  Seattle,  Washington,  whichever  the
complaining  party may choose, to Jams/Endispute,  before
a single  arbitrator appointed in accordance with the
arbitra tion  rules  of Jams/Endispute, modified only as
herein  ex pressly  provided.   After the aforesaid twenty
(20)  days, either party, upon ten (10) days notice to the
other, may so submit the points in dispute to arbitration.
The arbitrator may enter a default decision against any
party who fails  to participate in the arbitration
proceedings.
               (a)   The decision of the arbitrator on the points in
dispute  will  be  final,  unappealable  and  binding,   and
judgment  on  the award may be entered in any  court  having
jurisdiction thereof.

               (b)   Except as otherwise provided in this Agreement,
the  arbitrator will be authorized to apportion its fees and
expenses and the reasonable attorney's fees and expenses  of any
such party as the arbitrator deems appropriate.  In the absence of
any such apportionment, the fees and expenses  of the arbitrator will
be borne equally by each party, and each party will bear the fees and
expenses of its own attorney.

               (c)   The parties agree that this Section 4 has been
included  to rapidly and inexpensively resolve any  disputes
between  them with respect to this Agreement, and that
this Section  shall be grounds for dismissal of any court
action commenced  by  either party with respect to this
Agreement, other than with respect to matters for which
the Company has sought injunctive  relief,  and  post-
arbitration  actions seeking to enforce an arbitration
award.  In the event  that any  court determines that this
arbitration procedure is not binding,  or  otherwise
allows any litigation  regarding  a dispute,  claim or
controversy covered by this Agreement  to proceed,  the
parties hereto hereby waive any and all  right to a trial
by jury in or with respect to such litigation.

          5.   Separability.  All provisions of this Agreement
are intended to be severable.  In the event any provision or
restriction  contained  herein is  held  to  be  invalid  or
unenforceable  in  any respect, in whole or  in  part,  such
finding  shall  in  no  way affect the validity  or  enforce
ability  of any other provision of this Agreement.  The  par
ties  hereto  further  agree that any  such  invalid  or  un
enforceable provision shall be deemed modified  so  that  it shall
be enforced to the greatest extent permissible  under law,  and to
the extent that any court of competent jurisdic tion determines
any restriction herein to be unreasonable in any  respect, such
court may limit this Agreement to  render it  reasonable in the
light of the circumstances in which it was entered into and
specifically enforce this Agreement  as limited.

          6.   Notices.  All notices, requests, claims, demands
and  other communications hereunder shall be in writing  and
shall  be  given  (and shall be deemed  to  have  been
duly received  if so given) by hand delivery, telegram,
telex  or telecopy, or by mail (registered or certified
mail,  postage prepaid,  return  receipt  requested)  or
by  any   courier service,  such as Federal Express,
providing proof of  deliv ery.  All communications
hereunder shall be delivered to the respective parties at
the following addresses:


If to the Executive:  Kenneth A. Williams
                      c/o Sierra On-Line, Inc.
                     3380 146th Place, S.E., Ste. 300
                     Bellevue, WA 98007

with a copy to:     Perkins Coie
                    1201 Third Avenue
                   40th Floor
                    Seattle, WA 98101-3099
               Telephone: (206) 583-8534
               Facsimile: (206) 583-8500
               Attention: Stephen A. McKeon, Esq.

If to the Company:  CUC International Inc.
                    707 Summer Street
                    Stamford, CT 06901
                    Telephone: (203) 924-9261
               Facsimile: (203) 977-8501
               Attention: Amy N. Lipton, Esq.
               
with a copy to:     Weil, Gotshal & Manges LLP
                    767 Fifth Avenue
                    New York, New York  10153
               Telephone:  (212) 310-8000    Facsimile:
               (212) 310-8007      Attention:  Howard
               Chatzinoff, Esq.
               
or  to  such other address as the person to whom  notice
is given may have previously furnished to the others in
writing in the manner set forth above.

          7.   No Waiver.  The failure of any party hereto to
exercise  any  right,  power or remedy provided  under  this
Agreement or otherwise available in respect hereof at law or
in  equity, or to insist upon compliance by any other  party hereto
with  its obligations hereunder, and any  custom  or practice  of
the parties at variance with the terms  hereof, shall not
constitute a waiver by such party of its right  to exercise  any
such or other right, power or  remedy  or  to demand such
compliance.

          8.   Assignability and Binding Effect.  This Agreement
shall  be  binding  upon and inure to  the  benefit  of  the
parties and their respective successors.  The obligations of
the  parties hereto may not be delegated, and any
attempted delegation shall be null and void and without
effect.
           IN WITNESS WHEREOF, the undersigned have
executed this Agreement as of the 24th day of July, 1996.
                         CUC INTERNATIONAL
                         By:
                            Name:  E. Kirk Shelton
                            Title:  President




                          Kenneth A. Williams