This article breaks down what these dupes are, why "verified" status is often a red flag, and how to protect your community from them. What is a GMod Server Crasher Dupe?
When you see a dupe labeled as on third-party forums or sketchy Workshop links, proceed with extreme caution. In the GMod community, there is no official "verification" for crashers. Often, these files contain:
The Reality of GMod Server Crasher Dupes: Protection and Verification
Facepunch Forums (Archived) - Discussion on Physics Exploits.
Disguised files that can affect your local game files or computer.
Don't allow players to spawn dupes with a high entity count. Set sbox_maxprops and sbox_maxentities to reasonable limits. More importantly, use a script that adds a delay between spawning large objects. 3. Use a Physics Watchdog