Just put everything underwater
No dry land, no metal, no electricity. Fits the stated criteria to a T. Unfortunately, I'd suppose the asker was imagining something more ... Earth-like, except no electricity. Ah well. In that case...
Just put everything underwater
You can have plenty of water in the environment. As long as the prevalent phase is gaseous, it counts as a terrestrial planet. I'm not talking about here and there as a result of biological processes and a nearby river. I'm not talking about "as much as you can dissolve will do". I mean "enough water that it's forming clumps in the air and barely fighting against gravity". Welcome to Garm Kohara, an entirely ordinary geographical region on an entirely ordinary terrestrial type planet orbiting an entirely ordinary yellow dwarf.
Ambient temperature tops at 50 degrees Celsius, the air is soaking wet, ocean tribes tell stories about a big glowing orb in the sky. Your survival relies on a sheltered pool of water that is the centerpiece of your humble abode. It's still a little cold since the morning.
One day, you hear a thunderous roar coming from the sky. An hour later, a group of visitors arrives at your village. Tall and slender, yet humanlike. They seem to be struggling with the heat. Most curiously, one of them appears to speak your language. "Greetings, citizens of Nahin Kahaan. We've come from Yuddh Devata and we'd like to make a trade deal". "I've never heard of Yuddh Devata; where is it?" you reply. He pulls out a glass amulet from one of his pockets, taps it several times, and smashes his amulet against the stone floor. You notice a small green and black crystal previously hidden inside the amulet. He tells something to his companions. Each pulls out their amulet, looks at it shortly and puts it back. One of the companions begins to gather the shards. The speaker turns back at you.
"I apologize for my impulsive behavior. I wished to show you a map with the position of Yuddh Devata, but that appears impossible. Our tools were not built for this hot and humid place. Do you have anything we could use to draw with?"
You try several pencils, but none of them work.
"I don't, unfortunately, but now I'm curious about a different thing if you don't mind. What was the "tool" that you've just destroyed?" Your eyes settle on a transparent bag with several shards in it. "I gather it's capable of showing you images. How does it do that?"
"Indeed that is what it does. That green rectangle that you have probably noticed, that is the tool's brain. A form of energy courses through it along thin strands of metal cut into intricate shapes inside of it."
"Thin strands of metal. My cooking pot has to be replaced every few months, and there's nothing intricate about it. How long is it since you have departed from Yuddh Devata?"
The speaker turns to his companions. After a talking a while, they become visibly nervous.
"Please accept my deepest apology, but it we have just realized that we won't be able to begin our journey back home for a few months and we have grown weary of our little ship. Do you think your neighbors would mind our stay for a while?"