Synthetic Training Environment (STE) Virtual Software (VSW)

9/3/2026 - Update to add Attachment STE VSW CFS Q_A Vendor 09.03.2026 

9/04/2026 - Updated to add Vendor Intent to Submit Solution link and revise the description information. Please note, the description information referenced in this section is the most up to date information. Please note, any conflicting information between this Description section and the STE VSW CFS attachment, the information in this Description section takes presedence over the conflicting date referenced in the DRAFT STE VSW CFS. Any updated information referenced in this section will be included in any revised DRAFT or FINAL STE VSW CFS document as soon as possible. The Government team is working on a revision to the DRAFT STE VSW CFS and will be posted as soon as possible. 

9/10/2026 - Update to add ACC-APG AOS link, and access link below for Industry Day & One on One's Request.

9/10/2026 - Update to add the following attachments: Att 04 ACA LOI, Att 05 TC Notes 09.10.26, Att 06 STE IS SDA and Att 06a TSS-TMT GFI.

9/11/2026 - Update to add Attachment STE VSW CFS Q_A Vendor 09.11.2026 

9/11/2026 1415 hours - Updated to add Attachment STE VSW CFS Q_A Vendor 09.11.26 v1.1

9/15/2026 - Update to add Attachment STE VSW Call for Solutions 09.15.26, add Attachment A v1_STE Virtual SW Training Requirements Overview (Air). Solutions Due date updated from 28 September 2026 to 29 September 2026 at 1000.

9/15/26 2040 hours - Updated to add Attachment STE VSW CFS Q_A Vendor 09.15.26

9/16/2026 Updated the submission time in the posting to 1300 EDT

9/18/2026 Update to post STE VSW Call for Solution Amendment 001 - The STE VSW CFS amendment document takes precedent over any conflicting information between the posting and the actual STE VSW CFS amended document.

9/18/2026 Updated to add Attachment STE VSW CFS Q_A Vendor 09.18.26

9/18/2026  Update to post STE VSW Call for Solution Amendment 002 - The STE VSW CFS amendment document takes precedent over any conflicting information between the posting and the actual STE VSW CFS amended document.

9/23/2026 Update to add STE VSW Industry Day Slides 9.22.26, and STE VSW Interested Vendors list. 

9/24/2026 PLEASE NOTE SOLUTION/PROPOSAL SUBMISSIONS DATE FOR LOTS 1,3, AND 5 HAS BEEN REVISED TO 10/13/2026 AT 1000  HOURS EDT. LOTS 2 & 4 ARE DEFERRED AND WILL NOT BE DUE ON 10/13/2026 AT 1000 HOURS EDT. THE ANONYMITY REQUIREMENT FOR VOLUME II SUBMISSION HAS ALSO BEEN REMOVED AND IS NO LONGER A REQUIREMENT. THESE CHANGES WILL BE FORMALIZED IN A SUBSEQUENT CFS AMENDEMENT. 

10/01/2026 Release of STE VSW CFS Amendment 003 and Q&A dated 10.01.26 added as attachments.  

10/08/2026 Update to release STE VSW Call for Solutions Amendment 004 and Q&A dated 10.08.26 added as attachments.

*10/08/2026 Update to add STE VSW CFS Q_A Vendor 10.08.26 v1

The Army Contracting Command - Aberdeen Proving Grounds (ACC-APG) Orlando Division, on behalf of Capability Program Executive Simulation, Training, Test & Threat (CPE ST3), Program Manager Simulation, is issuing this Call for Solutions (CFS) under the Army Open Solicitation (AOS). The objective of this CFS is to solicit the most rapid, cost-effective, and technically sound solution to deliver the following operational outcomes: 1) A Doctrinal Gate to Live Fire; 2) A True Combined Arms Environment; 3) Full Mission Command Concurrency; and 4) Open system architecture with published SDKs and APIs to enable user manipulation and rapid integration of future capabilities.

The full DRAFT SE VSW CFS document, which outlines the detailed objectives, submission requirements, and evaluation phases are referenced in the Attachments Section of this notice. 

*Revised important, anticipated acquisition events, and dates are as follows:

27 Aug 2026 DRAFT STE VSW CFS posting
27 Aug – 13 Sep 2026 DRAFT STE VSW CFS Q&A
15 Sep 2026 FINAL STE VSW CFS posting
22-24 Sep 2026 STE VSW Industry Day and One on One sessions, Orlando, Fl.
13 Oct 2026 1000 EDT STE VSW CFS solutions due Lots 1, 3, & 5 ONLY
19 Oct 2026 STE VSW Lots 1,3, & 5 ONLY Down Select Notifications
03 - 05 Nov 2026 STE VSW Lot 1, 3, & 5 ONLY Demonstration Pitch
13 Nov 2026 Selection Notices STE VSW Lot 1, 3, & 5 ONLY Vendors
13 – 20 Nov SOW/PWS Collaboration, Request for Final Price, and Solutions Lots 1, 3, & 5 ONLY
20 Nov 2026 Anticipated Lots 1, 3, & 5 ONLY Awards

The solution brief is issued under the authority of the Army Open Solicitation Number W9128Z-25-S-A002 posting: https://sam.gov/opp/b94e184f53f943cdb90b118fa0401c89/view.

All interested parties are strongly encouraged to review the attachments to both this solicitation and the parent AOS posting for complete information. 

The Government encourages our industry partners to review the DRAFT STE VSW CFS posting, available attachments, and submit any questions or concerns to the POCs listed in the CFS attachment or associated to this announcement. The Government will make all attempts to answer all questions and/or concerns as soon as possible. The Government will review and post responses to all questions or concerns as an attachment to this posting throughout the DRAFT and Final STE VSW CFS process. Vendor information will not be included in responses to all posted questions. 

To ensure you receive timely notifications of all amendments and updates to this posting, we strongly encourage all interested parties to use the "Follow" feature within SAM.gov. To do so:

1. Log in to your SAM.gov account.
2. Navigate to this notice page.
3. In the upper-right corner of the page, click the "..." (three dots) button.
4. From the dropdown menu, select "Follow".

Why this is important:

• Notification: Once you follow this notice, SAM.gov will automatically send an email to your account whenever it is amended or updated.
• Correct Links: Each update to a SAM.gov posting generates a new, unique web link. Bookmarking a page or using an old link will take you to an outdated version. The email notification you receive from following the notice will always contain a direct link to the latest version.
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Please reach out to the POC's below if you have any questions. Thank you!