Terraria

For the past 5 hours, I've been doing the Old Ones Army trying to get the Flying Dragon. I have not gotten it, and i have beaten betsy around 20 times, even though the drop chance is 25%. I have gotten everything else except the sword, including the trophy and mask. Do I have to beat a certain boss? am i doing something wrong? Please help!

EDIT: nevermind i just got it lol

I know in Stardew Valley there is a way to mod the game, but run the game in a way where it leaves Steam achievements, well, achievable.

I’ve only ever played Terraria on the Xbox 360 about 8 years ago and 2 or 3 years ago on the Nintendo Switch (briefly) so I don’t have much modding experience and have many Steam achievements to go.

My question is this: Is there a way to mod Terraria, without disabling Steam achievements, so I can enjoy mod packs that add vanilla+ features? I don’t want to cheat the game but do enjoy user-curated modded experiences.

Any help/answers/responses are welcomed.

*im new to the wiki but not to terraria

*i play on steam and my name is elementaluke135 if you wanna do stuff

*i sometimes play on shifttech if you dunno what that is