UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                  FORM 10-K/A
                               (Amendment No. 2)
 (Mark One)

        [ X ]     ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                  For the fiscal year ended December 31, 2004


                                       OR
        [   ]     TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                   For the transition period from _____to_____

                         Commission File Number 0-26494

                               GSE Systems, Inc.
                               -----------------
             (Exact name of registrant as specified in its charter)

                Delaware                                52-1868008
                --------                                ----------
        (State of incorporation)         (I.R.S. Employer Identification Number)

      9189 Red Branch Road, Columbia, Maryland                  21045
      ----------------------------------------                  -----
      (Address of principal executive offices)                (Zip Code)

       Registrant's telephone number, including area code: (410) 772-3500

          SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

        Title of each class            Name of each exchange on which registered
        -------------------            -----------------------------------------
    Common Stock, $.01 par value              American Stock Exchange

        SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: NONE

     Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes [ X ] No [  ]

     Indicate by check mark if disclosure of delinquent  filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ X ]

     Indicate by check mark whether the registrant is an  accelerated  filer (as
defined in Rule 12b-2 of the Act). Yes [  ] No [ X ]

     The  aggregate  market value of Common Stock held by  non-affiliates  as of
June 30, 2004 was  $22,195,271  based on the closing price of such stock on that
date of $2.48.

Number of shares of Common Stock outstanding as of March 1, 2005: 8,999,706

                                    PART II

ITEM 9A. CONTROLS AND PROCEDURES.
---------------------------------

     The Company maintains  disclosure controls and procedures that are designed
to ensure that  information  required to be disclosed by it in its reports filed
or  submitted  pursuant  to the  Securities  Exchange  Act of 1934,  as  amended
(Exchange Act), is recorded, processed,  summarized and reported within the time
periods  specified in the Securities and Exchange  Commission's  rules and forms
and that information required to be disclosed by the Company in its Exchange Act
reports is accumulated and  communicated to management,  including the Company's
Chief Executive Officer and Chief Financial  Officer,  to allow timely decisions
regarding required disclosure.
       
     Under  the  supervision  and  with  the   participation  of  the  Company's
management,  including the Company's Chief Executive Officer and Chief Financial
Officer,  the Company  carried out an  evaluation  of the  effectiveness  of the
design  and  operation  of the  Company's  disclosure  controls  and  procedures
pursuant to Exchange Act Rule 13a-15(b) as of December 31, 2004.
     
     Based upon that  evaluation,  the Company  identified  a material  weakness
which had  existed  since the  second  quarter  2004,  and which  existed  as of
December  31,  2004,  with  respect to the  identification  and  accounting  for
derivative  transactions  in accordance  with the  requirements of SFAS No. 133,
"Accounting for Derivative  Instruments  and  Hedging  Activities".  (A material
weakness  is  a  significant   deficiency,   or   combination   of   significant
deficiencies,  that  result in more  than a remote  likelihood  that a  material
misstatement of the annual or interim financial statements will not be prevented
or  detected.)  Specifically,  the  Company  did not have a process  in place to
ensure that it obtained  information  with  respect to its Swedish  subsidiary's
forward foreign currency contracts.  Accordingly, the Company's controls did not
ensure that the fair  market  value of the forward  foreign  currency  contracts
would be recorded in the financial statements.  This control weakness was due to
the  combination  of the following factors:  a  resignation  of a  member of the
Company's corporate accounting staff who had previously monitored the accounting
for the forward foreign currency contracts,  the lack of training of the Swedish
controller  in the U.S.  GAAP  requirements  for such forward  foreign  currency
contracts, and the transfer of the Swedish subsidiary's currency transactions to
a small  branch  of a new bank  that was not  familiar  with the U.S.  reporting
requirements.  While  management  concluded that the error was immaterial to the
Company's 2004 interim  financial  results,  we nevertheless  concluded that the
lack of control could have resulted in a material  error in future  consolidated
financial  statements.

     Based upon the Company's  evaluation  and the material  weakness  described
above, the Chief Executive  Officer and Chief Financial  Officer  concluded that
the  Company's  disclosure  controls  and  procedures  were not  effective as of
December 31, 2004.
     
     During  the  fourth  quarter  2004,  there was no  change in the  Company's
internal control over financial  reporting that has materially  affected,  or is
reasonably  likely to materially  affect,  the Company's  internal  control over
financial reporting. However, in the first quarter 2005, the Company revised its
internal  controls with respect to derivative  transactions to ensure that these
transactions will be captured and accounted for in a timely manner. The specific
steps that the Company  completed to remediate the material  weakness  consisted
of:
     *    the training of the Swedish controller on the U.S. accounting for such
          forward  foreign  currency  contracts  which  differs from the Swedish
          accounting requirements,
     *    the requirement that all forward foreign  currency  contracts or other
          derivative  transactions  have  corporate  approval  before  they  are
          entered into, and
     *    the  addition  to  the  Company's   quarterly   subsidiary   reporting
          requirements  that a fair market valuation report be obtained from the
          issuing bank and forwarded to the chief financial  officer for review.
The Company believes that these steps have eliminated the material  weakness and
that no  additional  steps are  necessary.  There  have been no  material  costs
incurred by the Company in instituting these control changes.
     
     Limitation of Effectiveness of Controls 
     
     It should be noted that any system of controls,  however well  designed and
operated,  can provide only  reasonable,  and not absolute,  assurance  that the
objectives of the system will be met. The design of any control system is based,
in part, upon the benefits of the control system relative to its costs.  Because
of the inherent  limitations in all control  systems,  no evaluation of controls
can provide  absolute  assurance that all control issues and instances of fraud,
if any,  within the  Company  have been  detected.  These  inherent  limitations
include the realities that judgments in decision making can be faulty,  and that
controls  can be  circumvented  by the  individual  acts  of  some  persons,  by
collusion  of two or more  people  or by  management  override  of  control.  In
addition,  over  time,  controls  may  become  inadequate  because of changes in
conditions,  or the degree of  compliance  with the policies or  procedures  may
deteriorate. In addition, the design of any control system is based in part upon
certain assumptions about the likelihood of future events.  Because  of inherent
limitation in a  cost-effective  control system,  misstatements  due to error or
fraud may occur and not be detected.  The Company's  controls and procedures are
designed  to  provide  a  reasonable  level  of  assurance  of  achieving  their
objectives.
     
                                    PART IV

Item 15.  Exhibits and Financial Statements Schedules

     (a) (3) List of Exhibits

     The Exhibits which are filed with this report or which are  incorporated by
reference are set forth in the Exhibit Index hereto.
 

                                   SIGNATURE

          Pursuant to the  requirements of Section 13 or 15(d) of the Securities
     Exchange  Act of 1934,  the  Registrant  has duly  caused this report to be
     signed on its behalf by the undersigned, thereunto duly authorized.

                                             GSE SYSTEMS, INC.

                                          By: /s/ JOHN V. MORAN
                                             ------------------
                                             John V. Moran
                                             Chief Executive Officer 

                         
Exhibit       Description of Exhibit
------------- ---------------------------------------------------------------------------------

     3.       Articles of Incorporation and Bylaws

          a.  Third  Amended  and  Restated  Certificate  of  Incorporation  of  the  Company.
              Previously  filed in  connection  with the GSE Systems,  Inc.  Form 8-K as filed
              with  the   Securities   and  Exchange   Commission  on  October  24,  2001  and
              incorporated herein by reference.*

          b.  Form of  Amended  and  Restated  Bylaws  of the  Company.  Previously  filed  in
              connection with Amendment No. 1 to the GSE Systems,  Inc. Form S-1  Registration
              Statement as filed with the Securities and Exchange  Commission on June 14, 1995
              and incorporated herein by reference.*

     4.       Instruments Defining Rights of Security Holders, including Indenture.

          a.  Specimen  Common  Stock   Certificate  of  the  Company.   Previously  filed  in
              connection with Amendment No. 3 to the GSE Systems,  Inc. Form S-1  Registration
              Statement as filed with the Securities and Exchange  Commission on July 24, 1995
              and incorporated herein by reference.*

    10.       Material Contracts

          a.  Agreement among ManTech International Corporation, National Patent Development
              Corporation, GPS Technologies, Inc., General Physics Corporation, Vattenfall
              Engineering AB and GSE Systems, Inc. (dated as of April 13, 1994). Previously
              filed in connection with the GSE Systems, Inc. Form S-1 Registration Statement
              as filed with the Securities and Exchange Commission on April 24, 1995 and
              incorporated herein by reference.*

          b.  GSE Systems, Inc. 1995 Long-Term Incentive Plan, amended as of April 5, 1999.
              Previously filed in connection with the GSE Systems, Inc. Form 10-K as filed
              with the Securities and Exchange Commission on March 30, 1999 and incorporated
              herein by reference.*

          c.  Form of Option  Agreement Under the GSE Systems,  Inc. 1995 Long-Term  Incentive
              Plan.  Previously  filed in connection  with the GSE Systems,  Inc. Form 10-K as
              filed  with  the  Securities  and  Exchange  Commission  on March  22,  1996 and
              incorporated herein by reference.*

          d.  Office Lease Agreement between Sterling Rutherford Plaza, L.L.C. and GSE
              Systems, Inc. (dated as of February 10, 1998). Previously filed in connection
              with the GSE Systems, Inc. Form 10-K as filed with the Securities and Exchange
              Commission on March 21, 1998 and incorporated herein by reference.*

          e.  Office Lease Agreement  between Red Branch Road,  L.L.C.  and GSE Systems,  Inc.
              (dated February 10, 1998).  Previously filed in connection with the GSE Systems,
              Inc.  Form 10-K as filed with the  Securities  and Exchange  Commission on March
              21, 1998 and incorporated herein by reference.*

          f.  Warrant  Agreements  with GP Strategies  and ManTech  International  Corporation
              (dated  September  13,  1999).  Previously  filed  in  connection  with  the GSE
              Systems,  Inc. Form 8-K as filed with the Securities and Exchange  Commission on
              August 15, 2001 and incorporated herein by reference.

          g.  Change  of  Control  Agreements  between  GSE  Systems,  Inc.  and Jerry Jen and
              Jeffery G. Hough (dated March 10, 2000).  Previously  filed in  connection  with
              the GSE  Systems,  Inc.  Form 8-K as  filed  with the  Securities  and  Exchange
              Commission on August 1, 2001 and incorporated herein by reference.*

          h.  $1,000,000 promissory note dated June 25, 2001 to ManTech International
              Corporation.  Previously filed in connection with the GSE Systems, Inc. Form
              8-K as filed with the Securities and Exchange Commission on August 1, 2001 and
              incorporated herein by reference.*

         i.   Preferred Stock Issuance Agreement by and between GSE Systems, Inc. and ManTech
              International Corporation (dated December 5, 2001).  Previously filed in
              connection with the GSE Systems, Inc. Form 8-K as filed with the Securities and
              Exchange Commission on December 12, 2001 and incorporated herein by reference.*

          j.  Asset Sale and Purchase Agreement between GSE Systems, Inc. and Novatech LLC
              dated September 25, 2003.  Previously filed in connection with the GSE Systems,
              Inc. Form 8-K as filed with the Securities and Exchange Commission on October
              10, 2003 and incorporated herein by reference.*

          k.  Management Services Agreement between GSE Systems, Inc. and GP Strategies
              Corporation dated January 1, 2004. Previously filed in connection with the GSE
              Systems, Inc. Form 10-K filed with the Securities and Exchange Commission on
              April 14, 2004 and incorporated herein by reference.*

          l.  First Amendment dated March 30, 2004 to the Financing and Security Agreement
              among General Physics Corporation, Skillright, Inc., GSE Systems, Inc., GSE
              Power Systems, Inc., and MSHI, Inc. and Wachovia Bank, National Association.
              Previously filed in connection with the GSE Systems, Inc. Form 10-K filed with
              the Securities and Exchange Commission on April 14, 2004 and incorporated
              herein by reference.*

          m.  Third Amendment dated July 30, 2004 to the Financing and Security Agreement
              among General Physics Corporation, Skillright, Inc., GSE Systems, Inc., GSE
              Systems, Inc., GSE Power Systems, Inc. and MSHI, Inc. and Wachovia Bank
              National Association. Previously filed in connection with the GSE Systems, Form
              10-Q filed with the Securities and Exchange Commission on November 12, 2004 and
              incorporated herein by reference.*



                         

    21.       Subsidiaries.

          a.  List of Subsidiaries of Registrant at December 31, 2004.*

    23.       Consents of Experts and Counsel

          a.  Consent of KPMG LLP *
               
    24.       Power of Attorney

          a.  Power of Attorney for Directors' and Officers' Signatures on SEC Form 10-K. *


        31.1  Certification of Chief Executive Officer of the Company pursuant to Securities
              and Exchange Act Rule 13d-14(a)/15(d-14(a), as adopted pursuant to Section 302
              and 404 of the Sarbanes-Oxley Act of 2002.**

       31.2.  Certification of Chief Financial Officer of the Company pursuant to Securities
              and Exchange Act Rule 13d-14(a)/15(d-14(a), as adopted pursuant to Section 302
              and 404 of the Sarbanes-Oxley Act of 2002.**

        32.1  Certification  of Chief Executive  Officer and Chief Financial Officer of the
              Company pursuant to 18 U.S.C. Section 1350 as    adopted pursuant to Section
              906 of the Sarbanes-Oxley Act of 2002.*

    99.       Additional Exhibits

          a.  Form of Right of First Refusal Agreement.  Previously filed in connection with
              Amendment No. 3 to the GSE Systems, Inc. Form S-1 Registration Statement as
              filed with the Securities and Exchange Commission on July 24, 1995 and
              incorporated herein by reference.*

*  Filed previously
** Filed herewith