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@@ -4,6 +4,8 @@ Welcome to the NWNDS wiki!  This wiki will contain information useful for people
 
 [3rd Edition SRD](https://www.dandwiki.com/wiki/3e_SRD:System_Reference_Document) - Pen & Paper system Neverwinter Nights is based on.
 
+[Athas.Org](https://www.athas.org) = 3.5e Dark Sun rule set NWNDS is using as a guideline.
+
 [PRC Manual](http://nwnprc.com/manual/index.html) - NWNDS is built on top of the incredible Player's Resource Compendium.
 
 [Neverwinter Nights Wiki](https://nwn.wiki/display/NWN1/) - Exhaustive resource for modding Neverwinter Nights.