If you don't have any in-game sound after downloading Worms Reloaded, before creating a new thread in the forum please ensure you have carried out the two steps below:

1. FIRST, ensure you've downloaded the latest version of Worms Reloaded and the newest patch from Steam

2. If that doesn't work, manually download the latest DirectX update. This link should provide some more information: http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=3b170b25-abab-4bc3-ae91-50ceb6d8fa8d

If after both steps fail to solve the problem and you still don't have sound, please create a new thread in the forum.