I don't know that it's possible. Once you see 5-10 of "new thing" you sorta understand the base layer + different modifiers. We're pretty good at recognizing patterns. It's cool the first 3 times, but then you catch on and it feels fundamentally the same as all the other things you've seen.

All procedural games feel like this to me at least. I've been playing Diablo / POE recently. Same deal, once you're at the endgame - the goal just becomes bigger numbers. The maps have different themes, the monsters are different, but you sorta just look past that part as you're gathering generated gear with bigger numbers. It's why I typically get about 10% into the endgame and eventually stop playing.

Minecraft is also a decent example, at some point you stop exploring, build a base and focus on the progression rather than seeing what the system generates in the next biome.

I agree a lot with your point on Minecraft. The farther you explore and the more you see, the higher the bar feels for what's worth your interest.

When you first start playing the game, a medium sized mountain is exciting. Then the bar raises towards more interesting features (a deep canyon or a village), and then towards really interesting features of land. Finally, you look for obscure biomes (e.g. badlands or ice spikes). By the end, you can go thousands of blocks without seeing something that feels worth exploring.

Luckily Minecraft has other aspects beyond just the exploration.

I think Minecraft gets it right by using procedural generation to add depth to the existing content rather than making different content.

There's a fixed set of biomes and notable geographical features designed by the devs, so there's no incentive to keep finding unseen ones, but each world gets its own layout and landmarks, so you get to explore the details of that specific generation for days without carrying over your knowledge of the previous one.

In the long term it might get repetitive too, but it does at the same rate as one gets tired of any other game I think.