NI Reaktor Drone Pack

I just found this from Twisted tools website FAQ section, b/c I sorta had the same question too.. Basically the short answer is files that say .ism should be put in the Instruments sub-folder, which are the main components in an ensemble.

2nd Thought and IMHO, I have notice a big name change from "instrument" to "Blocks" so you could just put the ism files in the blocks directory instead.

...Reaktor ensembles are like word docs. They don't need to be anywhere in particular, just double click and they open. No bad can come of it...

it is good practice is to at least put them somewhere in the user content location, set in the Directories tab of your Reaktor preferences. This way you can easily browse for them from within Reaktors browser window. The absolute best practice would be to use the sub-category folders that are there already, so that you can right-click nearly anywhere in Reaktor's background and insert the desired items.

Files that say .ens should be put in the Ensembles sub-folder. These files are finished devices that you can simply double-click and use. They are usually made up of one or more Instruments, that are connected to Reaktor's audio inputs and outputs.

Files that say .ism should be put in the Instruments sub-folder. Instruments are the main components in an ensemble. They have their own presets (called Snapshots) and MIDI in/out settings. Be careful, because if you right-click to insert an instrument by itself, nothing will play as its audio ins and outs are not yet connected anywhere.

If you want to open something up and begin playing, choose the .ens files. If you want to build something new or combine several devices, use the .ins files.

I believe, Reaktor 6 did not create an instruments folder, so you may have create your own and just put it in the user Library section or some place that you know will show up in Reaktors internal browser. FYI, I always found NI Reaktors file organization a little wonky, and I've been messing with it for awhile. I hope this helps.