[Branch Banking and Trust Company Letterhead]

June 17, 2016

Mr. Jeffrey G. Hough

SVP, Chief Financial Officer

GSE Systems, Inc.

1332 Londontown Blvd.

Sykesville, MD 21784

Dear Jeff:

The purpose of this letter is to confirm that the Bank has agreed to the following:

 The Bank has agreed to extend the Revolving Credit Expiration Date until September 30, 2016, as defined in the Master Loan and Security Agreement dated November 22, 2011 in Section 1.1(a), by and among GSE Systems, Inc. and GSE Performance Solutions (collectively, the Co-Borrowers) and Branch Banking and Trust Company (successor by merger to Susquehanna Bank).

Respectfully,

Robert P Whelen, Jr.

Senior Vice President

Tel ###-###-####

Fax ###-###-####