Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Neopets - Neopets is an Amazing, Virtual World, Massively Multiplayer Online, Role-playing and Fantasy-based video game developed and published by Viacom.
AppDynamics - Get real-time insight from your apps using Application Performance Management—how they’re being used, how they’re performing, where they need help.
CPPS.io - CPPS.io is a clone of Club Penguin, you will have the same experience as if Club Penguin was still around, with free membership custom features and more, come join CPPS.io a great alternative to Club penguin.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Toontown Rewritten - Toontown Rewritten is a Free to Play, Browser-based, MMORPG, and Virtual-World video game developed and published by Disney.