
Terraria
If they plan to play terraria.
Honestly, its outright impossible for them to beat all bosses in Terraria Hardcore, let alone Master mode.
So the only right thing to do here, is if they are planning to do Hardcore Terraria, they SHOULD ready a lot of hardcore characters, and honestly, it gives them more chance.
If they keep using the same world, just different characters each death.
But i would like to know your opinion on how long will they beat terraria Hardcore.
My prediction is a month with external help and guide.