Kurotowa
Legend
Even with D&D tipping the top of the scale, there are RPGs that have had impact. Shadowrun, Traveler, Vampire: The Masquerade, Call of Cthulhu... games that have lasted for decades and had a wide influence on the hobby. Even if you want to let D&D monopolize the A Tier and put those on the B Tier, the licensed Conan and LotR RPGs are down in D Tier. Unremarkable and passed with little impact.Comparing them to D&D and saying they have limited impact is almost redundant. I have trouble picturing that not being true about almost any RPG given the dominance of the former.