As for attribution, the licensing terms include a requirement for providing a link to the individual sound used (for each one).
I personally also like for these attributions to be included in whatever searchable text is published to the web (if at all) in addition to the delivered product itself. For example, if you put up a trailer on YouTube that features that part of your game, you should provide attribution in the description text of that video. I describe that in my profile, and you can also find the bare minimum covered in the freesound FAQ here: http://www.freesound.org/help/faq/#licenses-1. I also don't mind the use of my actual name (Keith W. Blackwell) in addition to the url which contains my user name (zimbot).
I'm making a game and using this sound for a Hell scene so i will be using the whole thing if you want I could put in the credits otherwise I'll just mention that I did use some things made by other people.
Interesting, I don't find a lot of similarity, but then, I can't explain why it evokes a certain mood for me, either (as mentioned in the description). It is kind of trippy, but not like Inspector Norse. :-)
And hey, IchabodTodd, I enjoyed your music video, though it wasn't until I saw the related links on YouTube that I realized it was a parody of something (obviously I had never heard the "roar" song). I never quite got what the cricket chirp had to do with your song, but perhaps that's part of the parody.
By the way, there are also some pretty clean clips in this same pack of real recordings of a real cricket. If anybody cares. :-)
I always enjoy knowing how these sounds get used out there, so thanks for commenting.
It occurs to me that you might not find the similar but (IMO) better version because its in a different pack and, well, freesound's "similar sounds" won't even suggest one as being like the other (which is baffling). So here it is: http://www.freesound.org/people/zimbot/sounds/193348/
I never would have guessed that this humble little clip (and the similar sounds in this pack) would have been so useful... but its amazing how far-reaching the uses are. I especially like the Spiderman stop-motion clips all over the web, though this sound added very little to that effort. It makes me guess there might be a need for more sounds like this to be recorded and posted, but I haven't scoured freesound to see how many others sound similar to this.
Thanks for the kind words about this and others. My "musical" collection of weird music from Analog Box jambots is a very small collection here, hasn't been here long, and freesound in general is not exactly the main place folks should look for "music", per se. Any of those might explain it. :-)