Ath'kethin
Elder Thing
Oh, I also can't pass up mentioning Primeval Thule, by Sasquatch Game Studio. The 5e version is a touch rough around the edges since it came out before the SRD and OGL were updated for 5e, but if you like Sword & Sorcery style gaming it's awesome.
You c a donload a free world book that gives a great overview of the setting to taste it a bit before getting too involved.
You c a donload a free world book that gives a great overview of the setting to taste it a bit before getting too involved.