UnnyNet is a free and straight forward solution to add chat, friends, leaderboards, achievements and guilds in games without building any UI or database yourself.
PlayMaker support is available via the Ecosystem browser, and you need to do is install the UnnyNet package from the asset store.
or you can get it directly here: UnnyNet PlayMaker Package
you can also check out its github repository
the sample is also available on the Ecosystem or below
The sample is a straight copy of the UnnyNet sample but all done with PlayMaker, so this is a great way to test and check out how to work with the various actions and events
Help and Support
Make use of the PlayMaker forum to ask questions and get support