If you run a serious community, disable client-side pasting entirely. Force players to upload dupes to a server queue that sanity-checks prop counts and constraint links.
The dupe spawns hundreds of props constrained in a way that creates a perpetual collision resolution—for example, a series of ropes and wheels that never stop calculating forces. The server’s physics engine (Bullet Physics) tries to solve this loop, pegs the CPU at 100%, and never recovers.
Result: Server locks up until the process is killed. gmod server crasher dupe
Crasher dupes usually contain:
Do not use these dupes against other servers. It’s not “hacking.” It’s not “trolling.” It’s just digital vandalism that wastes hours of admin work. Hosting providers (OVH, Vultr, etc.) will terminate your account if they receive crash logs linked to your IP. If you run a serious community, disable client-side
If you’re a player: Report crasher dupes to server admins before spawning them. If you’re an admin: Share crasher signatures with other server owners. We’re all in this sandbox together.
If you run a public DarkRP server, consider disabling Advanced Dupe 2 entirely and using the default Dupe 2.0 tool. You can also set: If you run a public DarkRP server, consider
ulx addgroup trusted
ulx adduser dupe_restricted
Give trusted ranks access to AdvDupe, deny it to guests.
Before major patches in 2018-2020, some dupes could embed raw Lua code using the Advanced Dupe 2 tool. A crasher dupe might contain:
while true do
game.GetAllPlayers()[1]:Kill()
end
Or worse, a function that creates thousands of networked entities, leading to a buffer overflow crash. While modern GMod has largely patched direct Lua injection via dupes, old servers running outdated addons remain vulnerable.