In Diablo 2: Resurrected, death is a certainty until you reach a high enough level of mastery.
Death can come quickly if you aren't fully prepared or paying attention, what with the hordes of opponents frequently thrown your way and the formidable special enemies trying to ruin your day. Moreover, unlike Diablo 3, there are severe consequences in Diablo 2: Resurrected if you die.
To begin, in Diablo 2: Resurrected, you will be returned to town after each death. The fact that you'll be naked is even worse. You'll need to successfully return to the spot where you died and find your body in order to retrieve your belongings. Or, you can cheat if starting over is okay with you. You can easily return to town with your dead body at your feet by pausing the game and selecting the "Save and Exit" option. It's a safe alternative to going back to your body to get your belongings. Be wary of quitting the game if you have attempted to rescue your corpse and have since died many times; this may leave multiple corpses behind, and you may lose stuff if you do so.
The saddest part of dying isn't even having your body and belongings recovered. If something bad happens to you, your hired help will perish with you, and bringing them back to life will cost you. In addition, you will suffer a loss of wealth proportional to your character level, up to a maximum of 20%. If your gold haul exceeds the maximum allowed, the excess will be left by your body. That gold will be lost if you don't return to your body. And if you're playing with others online, they can take the gold you drop D2R ladder items cheap.
However, there is a stealthy technique you can employ to reduce the amount of gold you lose. For this purpose, just the gold in your possession and hidden reserves will do. By placing your wealth in one of the several shared stash tabs, you might lessen the impact of your untimely demise. Even so, you should always have some gold on you or in your personal stash for purchasing consumables like healing potions and mending damaged pieces of equipment.
Diablo 2: Resurrected's death penalty increases on the Nightmare and Hell difficulties. If you die, you will lose a tiny amount of experience and hence be temporarily set back in the game. Therefore, you will find that dying frequently is not only expensive, but can also block your advancement in level. Don't worry, though; you'll never get demoted.