This is the world of Minecraft. Specifically, you have come to a world set in the 'Manhunt Series' game.

The basic rule of the Manhunt game starts with one <Speedrunner> and multiple <Hunters>. The Speedrunner must cross into the End and kill the Ender Dragon to achieve the 'Free the End' advancement before dying.

On the other hand, the Hunter team has no limit on lives and can respawn at any time if they die. Their goal is to kill the Speedrunner before they achieve that advancement.

If they succeed in killing Dream, all hunters receive a massive bounty.