What is it you don’t like about it? I’m unfamiliar with your game of choice, but I’ve played DND (among other games with various premises) for almost 30 years now.

For me, the game itself is a suit of clothes. The fun is in the company. Making puzzles to try and trip people up and having them unpicked like embroidery. Seeing the clever things the players come up with and watching them bond through their characters in a completely different way from how they do irl. Watching the alliances form between two people who are acquaintances outside of the game but sisters inside.

If it’s the fantasy world you don’t care for, dnd has so many opportunities to curtail that. It’s such a versatile game with so many years of people making stuff for it. You like robots and guns? That’s not impossible. Rather play horror? There’s that too. I tend to build almost everything in the framework of dnd just because it’s so familiar to me. I’m currently working out the kinks to a lovecraft style murder mystery campaign but I’m setting it in a homemade world built using 5e rules. Because I don’t want my players to have to buy all the Call of Cthulhu stuff and learn a new set of rules.

You have the ability to completely trailer dnd to your needs. Add races/classes/gods/demons in a world that’s completely from your brain, or cribbed from another you prefer. Use the maps and adventures from another game if you like. It’s all wide open. 5e especially lends itself to so much variety because it seems so bound around the role playing rather than the rules. Hell, half the people I’m playing with seem to be making superheroes instead of fantasy adventurers, and the game seems to provide for that just fine.