everythingFPS · Anti-Cheat
eFPS Integrity

eFPS Integrity Client

The required integrity client for ranked Half-Life 2: Deathmatch. Runs quietly in the background and verifies your game files during matches.

Version 1.0.5  ·  Windows 10/11 (64-bit)  ·  ~70 MB
Download for Windows

Install & run

  1. Download and run eFPSClient.exe.
  2. A browser window opens — sign in with Steam.
  3. Leave it running while you play ranked. The window shows a steady “Running” status.
  4. Close it from the window when you’re done.

Requirements

  • Windows 10 or 11, 64-bit
  • Half-Life 2: Deathmatch installed via Steam
  • An internet connection
  • No separate runtime to install — everything’s bundled

Windows may warn you

This is free community software, so it isn’t code-signed — Windows may show an “Unknown Publisher” or SmartScreen notice the first time you run it. That’s expected, not a virus.

  1. On the “Windows protected your PC” screen, click More info.
  2. Then click Run anyway.

Verify & inspect

  • Open source — read the client code yourself on GitHub.
  • Confirm your download is authentic by matching its SHA-256 to the official hash below.
Official SHA-256
4390f8f17136885ead20a40a8aa6eba47040fba6f6a92735e019a4baf97f1358
Check yours (PowerShell or CMD)
certutil -hashfile eFPSClient.exe SHA256
What it does and doesn’t do. The client only reads and verifies your game files and performs periodic screen monitoring during ranked for anti-cheat review. It does not read game memory, inject into the game, or interfere with how you play. If the client tells you to update, grab the latest build from this page — older or modified builds aren’t accepted in ranked. By installing, you agree to our Privacy Policy & Use Agreement.