The creepy game i played

I was playing roblox and I was on meep city and my meep was named allson everything was fine but when I exited something went wrong I looked and I sometimes play OLD GAMES but when I wonted to play a game called roleplay I teleported to a game called KILLED I said maybe it was a glitch with the title but when I joined I should of left I saw a page it said you should of never joined this game I screamed and I left luckly I was able to but then I got a text on roblox from a guy he didn't have a username It was blank then I went back to see the text he said hi I SCREAMED because he said also I MADE THAT GAME and I was scared then I went back to see if it was there but it was gone and when I went back that guy that had no username was gone also I don't know how he texted me if I wasent his friend but im still scared today