Would it help if I upgraded to awireless N router?

I'm currently using a wireless-G router off of a Q-west DSL line. The loading speed slows way down if my kids start playing minecraft or Roblox. Would it help to upgrade to a wireless N router or should I just save my money?

Save your money because it is not upon Wi-Fi Connectivity. It is about Internet Access. Probably your internet is eaten up through many access.

Router helps you to go wireless.

Upgrade your internet speed and check, because many devices in your place are eating up bandwidth… Upgrading the internet speed will sought the issue.

Well only update your wif-fi router if the signal range in few places are week

DSL typically tops out about 3Mbps (megabits per second). A wireless G modem is rated at 54Mbps, so the likeliest bottleneck is at the DSL service. Try a speed test connected to the DSL line directly and then through the wireless router. Wired is usually faster than wireless but it will give you an idea.