[noob]

Sounds like you are wanting a windows based product. Nagios is *nix based.
About Nagios

For something you can install in windows look into;
Zenoss Home - Commercial Open Source Application, Systems and Network Monitoring - Zenoss
Pandora FMS - the Flexible Monitoring System
start · NeDi

I haven't used any of those, but a quick search and they came up.
All of these will require extra configuration, and configuration on each machine you are wanting to monitor.

Apart from that, you are going to need a script to ping each machine and show the results. As stated above, a ping can't show if there are any actual issues with any given box.
Where we are, we use nagios to monitor several hundred servers, at multiple sites. I have toyed with it, and following their online documentation makes the install easy. I don't use any other distros but it is in the repos for Ubuntu.

Wasn't much point in me using it at home though, only 3 PC's, one of them being my MSI wind, and the other 2 right beside each other.