When game's engine got too many objects to process. The engine of "classic" drops fps to slide show but draw a scene completely. In opposite, the engine of "reissue" keeps fps high but decreases the number of objects to draw. The mod in the video is "Bloody Caves": https://www.moddb.com/mods/bloody-caves Recorder in 2021 Reissue v109 The game is available on: Steam: https://store.steampowered.com/app/1710170/Blade_of_Darkness/ GOG: https://www.gog.com/game/blade_of_darkness #bladeofdarkness