I'm currently making an Achievement getting map in Hammer, you know, stuff like instantly respawning Dispensers/Sentries, capturable points and intel, etc. When I compile the map, and Hammer auto-loads TF2, after a few minutes of me testing the map, people start joining the map. The reason this is weird because I don't think people are supposed to be able to get into a "server" that doesn't really exist, seeing as I don't have the map I'm making uploaded to my server, or my FastDL FTP. Which brings me to my question. How are people even able to access a map that isn't uploaded to my server (My server is currently running that map I made a few weeks back, "Idle_Arena_AlphaV2"), and how can I stop people from joining everytime I compile the map and playtest it in TF2? Someone who joined said they searched "achievement idle" and my map popped up. My maps name is "achievement_idle_daedryon".