My game apps have no sound but music and videos play normally

Have you got notifications muted ? Only notifications (including games) get muted, so the iPod and Videos apps, and headphones, still get sound.

Depending on what you've got Settings > General > Use Side Switch To set to (mute or rotation lock), then you can mute notifications by the switch on the right hand side of the iPad, or via the taskbar : double-click the home button; slide from the left; and it's the icon far left; press home again to exit the taskbar. The function that isn't on the side switch is set via the taskbar instead : http://support.apple.com/kb/HT4085

I am using iPad 2 and I am unable to get any sound for games. Music plays normally and so does everything on YouTube . Any suggestions? IPad 2. iOS 5.1

I have tried that too, with no results. Should the side button be up or down?. I have tried going on setting >general> and clicked on rotation lock and then slid the side button to the top. Still no sound. Prior to upgrading to 5.3.1 version the sound was fine.

Can anyone help please

The side switch is real confusing. Depending on your settings, it may affect the mute or it may affect the rotation lock. This support article from Apple provides detail.

http://support.apple.com/kb/HT4085

In case you're wondering, here is the history. Originally, the mechanical switch affected only the rotation lock and the mute was a software switch elsewhere. In IOS-3, it was changed to be the mute switch and the rotation lock became a software switch. This was done to ensure consistency among IOS devices. Unfortunately, a large quantity of users complained loudly, alleging that they turned the rotation lock on and off several times every hour and the convenience of the mechanical switch is essential. In IOS-4, Apple bowed to the whiners and made the switch function selectable and now we're stuck with a mess.

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I have the same issue. Since the latest iOS update, all my game sounds do not work. Music and videos work. All settings are turned on. Can anybody fix this?

for me, I had checked volume and everything was fine, but then I realized that do not disturb was on. Apparently that feature allows music and videos to play, but not notifications or games out.