How to make a Hardcore Minecraft world

Question

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Multiplayer[]
References[]
How do you set world to hardcore?

The hardcore mode death screen, where it says 'Game Over!' instead of 'You Died'

Hardcore is a Java Edition exclusive variant of Survival and one of the main game modes in Minecraft. In this mode, the world is locked to Hard difficulty and the player cannot respawn after dying.

Features[]

The game mode button showing Hardcore.

The key feature of Hardcore mode is that the player is not given the option to respawn upon death as they would in other game modes. Instead, there are two buttons on the death screen: "Spectate world" and "Title screen". "Spectate world" sets the player to Spectator mode and respawns the player at the world's spawn point, making them able to view and explore the world only in that mode. The "Title screen" button simply leads the player to the main menu screen; re-opening the world simply returns the player back to the same death screen as before. Respawn anchors do not resurrect players in Hardcore mode.

In addition, Hardcore mode worlds are restricted to Hard difficulty.

When creating a Hardcore mode world, the Enable Cheats and Bonus Chest world options are locked to OFF. On the world selection menu, Hardcore mode worlds display dark red text reading "Hardcore Mode!"

While in Hardcore mode, the hearts representing the player's health look different, as they include dark red marks inside the icon

Hardcore mode is specific to worlds, not players; the variable determining whether the world is in Hardcore mode is saved in level.dat. Thus, the player can use /gamemode creative (if cheats are enabled) to set themselves to Creative mode. Players in Creative mode while on a Hardcore mode world still see Hardcore mode's death screen upon death.

It is normally impossible to toggle Hardcore mode once the world has been created, though it is possible to use external programs such as NBTExplorer to change it by setting the hardcore tag to either 1 (hardcore) or 0 (normal).

However, it is possible to enable cheats through the Open to LAN feature in the pause menu. From here, the player can, while spectating the world after death, type /gamemode survival to bring themselves back to Survival mode, being able to play again by cheating death.

Multiplayer[]

Hardcore mode is an option for multiplayer, and its functions are similar to those in singleplayer. All players have Hardcore mode enabled — it is impossible to have some players in Hardcore and some not.

Server operators can use the /gamemode command to change the game mode of themselves or another player.

History[]

The Hardcore mode button posted on Twitter by Notch.

Notch's first image of a Hardcore death screen.

Java Edition Beta
November 22, 2010	The idea of Hardcore mode came to Notch from a Minecraft gameplay blog on the PC Gamer site.[1]
Java Edition
September 23, 2011	Notch tweeted an image of a button that enables Hardcore mode.
September 28, 2011	Notch tweeted an image of the Hardcore mode death screen.
1.0.0	Beta 1.9 Prerelease 2	Hardcore mode added. Upon death, the "Delete World" button and "You cannot respawn in Hardcore Mode!" text are shown.
1.3.1	12w17a	The 'Bonus Chest' and 'Enable Cheats' world options cannot be enabled in Hardcore mode (server operators' commands are not affected by Hardcore mode).
12w18a	Hardcore mode can now be used in multiplayer.
1.9	15w37a	Rather than deleting the world upon death, the player now has the option to be put into Spectator mode.
1.15	19w35a	"Delete world" on the Hardcore death screen has been replaced by "Title screen", meaning players must manually delete the world.

Issues[]

Issues relating to "Hardcore" are maintained on the bug tracker. Report issues there.

Trivia[]

The joke "ultra hardcore" button.

When Notch announced Hardcore mode on Twitter, he jokingly posted an image of an 'ultra hardcore' mode where the premium status of the player's account is revoked on death.[2] This is not to be confused with the custom gamemode of Ultra Hardcore, which was invented later.
When a Hardcore mode world is loaded on a version released prior to Hardcore mode, the world is converted into a Survival world. Loading this world in a version featuring Hardcore mode does not revert the world back to Hardcore mode.
A popular challenge used by servers is a map in which player(s) must survive for 100 days on Hardcore mode while completing certain tasks. These maps may have custom features.