If steam sees it, then you can verify cache and steam will correct any errors in the. Change id to 345350 (that's the id for lighting returns), name to 'LIGHTNING RETURNS™: FINAL FANTASY® XIII' and install directory to whatever you called the folder and bytes downloaded to something other than 0. I would try putting the files in steamapp/common/gamename, then use this as a template for your. I don't think steam makes one until the game installs, so you will probably have to make your own. (not entire folder) Paste them in Epic Games / GTAV and paste all files here. Now, close Epic launcher and close it from system tray. acf for them as well, in the steamapps folder. First, go to library and start downloading GTAV in any drive its your choice and wait till it downloads about 10 mb then pause it. If you already have the game files, then they are supposed to go in 'steamapps/common/gamename' and have a releavant. Downloading folder is where incomplete downloads temporarily go, you can't add stuff and make steam see it. The game cache is where the game is installed, that's why it won't see them. Experience the genre-defining classic, updated for a new generation with across-the-board enhancements including brilliant new. Steam won't verify it, because the 'downloading' folder is not the game cache.