There used to be several sites dealing with the game of Gruntz. What happened to them?
You mean the abandonware sites? These usually have a short description of Gruntz, a couple photos and a small comment section, mostly people asking for help with running the game. None of them can be compared to this forum.
Paul's Gruntz Page? Not updated in years, it's a miracle that it's still online.
Our Gruntz Discord server still exists, though it's less active than it used to. And for all intents and purposes it's just a chatroom.