Same as the chapters before a compressed windows file double click the zip to open it, then drop TBT chapter 5 in Amnesia the Dark Descent/redist/custom stories. This is a little DLC to the other chapters, this is in beta though any bugs be reported so I may fix that. And... this will be the last of TBT. When sometimes (not always) traveling not through a level door but level transition like time travel, there may cause a bug that loads the previous level again and immediatley loads correct level then or loads an entirely another level, don't know why this suddenly happens. Can't find the cause of that.