Achievement Question on Steam

[Zonk]

I realiced that i dont get any Achievements on Steam. Was playing custom Maps and online. So i started a ofline Game and most Achievements where doable.
In Game i got the Achievement of burning 10000 trees but at steam it say 12/10000 someone have any idea?

[AlyxDeLunar]

If you have any mods at all it disables achievements to Steam (and you still get achievements, but they are saved locally and don't really count).
Do you have mods?

[Zonk]

oh yeah used that blueprint thing :/
god damm it this function needs to be implemented. I miss it so much at multiplayer too