Start building with Epic Online Services. Use Unreal Engine, Unity, or the engine of your choice.
Note that despite the name of the program and one of its .exe-s, it does not include the client-side Epic Online Services installer.
Publisher’s description
What is EOS SDK (C#)?
EOS SDK (C#) is a proprietary program for Windows from Epic Games.
Installation and requirements
Official installers exist for 64-bit as Portable. The main installer is 574.7 MB. It runs without installation (portable).
Pros / Cons
Pros
- Portable: runs without installation
Cons
- Proprietary licence: check the terms and price
- No native ARM64 build
- Large download (574.7 MB)
In short: EOS SDK (C#) is a Windows tool for 64-bit PCs.
Is EOS SDK (C#) safe to download?
- The file is served by onlineservices.epicgames.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
7A5F8C87A93650C6CCF63E7BCC785ADE9291818D7739E35A6B820EC47CEFDB93· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.19.0.3Latest | February 16, 2026 | 574.7 MB | 64-bit ZIP |
Install from the command line
Silent install ›winget install --id EpicGames.EpicOnlineServicesSDK.CSharp -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- Epic Games
- Licence
- Proprietary
- Price
- See the publisher’s site
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 1.19.0.3
- Released
- February 16, 2026
- Added to the catalogue
- February 16, 2026
- Versions listed
- 1
- Website
- onlineservices.epicgames.com
- winget ID
- EpicGames.EpicOnlineServicesSDK.CSharp
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is EOS SDK (C#) free?
EOS SDK (C#) is proprietary (closed-source) software (licence: Proprietary). Whether it costs money depends on the edition: check the publisher’s site for prices and free tiers.
Is EOS SDK (C#) safe to download?
The download comes from onlineservices.epicgames.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install EOS SDK (C#) with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does EOS SDK (C#) run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Can I use EOS SDK (C#) without administrator rights?
Yes, it is portable: unpack and run it.
