Good evening! I wanted to know why there is so little stone and oil in fashion?

You can get stone naturally as you expand, because every rock you mine while digging through the cave gives you stone.

Crude oil is deliberately less common because the whole map is underground. However, there is plenty of coal available, so you can unlock and use Coal Liquefaction as an alternative way of producing oil products. You shouldn’t need a huge amount of crude oil to progress.

If you do need extra oil, you can also buy barrels of crude oil from the in-game market.

Understood. Thank you. Why did the trees disappear?

The trees were removed intentionally because the entire map is underground, so normal surface trees didn’t really fit the environment or the theme of The Cave.

If you need wood, you can buy it from the in-game market. Wooden electric poles and large wooden electric poles are also available there. You start the game with some coins, so you can buy a few wooden poles early on if you need them.

You’ll also earn more coins as you mine through the terrain, and you can use those coins to buy additional wood or poles from the market.

Understood. Thank you.

Does it make sense to use grenades for excavation?