In case any of you are interested, steam is having a massive sale on worms (and most other games) until tomorrow (Dec. 2 in my local time). If you do not yet have any steam-enabled worms game copy, and are willing to buy some, I suggest you buy the Worms Collection bundle, which costs a mere 11 USD. It includes:

Of course, you can also buy individual items if you're not willing to purchase the whole series. Most of them also got a rather large discount. Happy shopping.