Board Thread:Modded Server Technical Support/@comment-109.9.190.86-20170429223927/@comment-27219153-20170430170902

Guatas wrote: ...limiting the amount of achievements the player gets in the starting area...

You said the starting area had many biomes, you could simply have less biomes in the starting area.

...announce-player-achievements=false in my server.properties, but they still pop up in the chat...

Did you restart the server after you changed it?