Am I first?;p I can't enter cause I'm not contributor, but i wish luck for everyone.

Thanks for the puzzle and giveaway! Not interested in CS, so not entering ^^
BTW since when is Avagadro's constant N_av? I was having a little bit of trouble because I thought av meant average, like it usually does.

I also like how this giveaway code is actually a word.

8 = oxygen?! I thought it just meant 8. I guess it was too obvious.

Very difficult puzzle. Thanks for the great giveaway

Thank you! 4 was tricky, and 5 was difficult to find for me :)

Thanks for puzzle

many thanks

Thanks :D but i got the 4th only with randoming

EXISTS IN YOUR ACCOUNT

Cool puzzle, I had problems with the last 2. However i already have the game XD

Thanks for the puzzle and giveaway. I don't have this, and it seems like a good game, so I'll enter for it. I have to admit that I brute-forced the 4th character. I got that the clues were science-oriented, but still didn't really know what to do with the lone 8. But since I was right on the other 4, I was able to get here without too much trouble. :)

Thank you )

Thanks for the puzzle and the giveaway! :)

Thanks. I know all the answers except #4, I kept trying with 8 in the giveaway url lol.

Thanks for the giveaway! The KN_av threw me off till I asked my brother... I had to ask my brother (hangs head in shame*)

wow, this took longer than expected
Thanks and good luck to everyone!

4, 5 confused me when I last tried, but the hints helped me.
It's amazing how the code is a real word. XD
Already have the game but thanks.

Already have it. Thanks for the science theme puzzle!

All right. Got it on second try. #4 is confusing a bit. What are these "enemies"??...

Solved, thank you. Already own CS:GO.