Pre-Hardmode items

Pre-hardmode is the de facto name for the default state of newly generated worlds. This state persists until a player succeeds at defeating the Wall of Flesh, activating Hardmode. In this state, much of the game's content is unavailable and systems are put in place to prevent many of them from being unintentionally triggered.

Hardmode content available during Pre-Hardmode

 * Hardmode is a state of a world rather than a character, so most items acquired in Hardmode can be brought to a pre-Hardmode world and made to function normally.
 * Mechanical Boss summoning items will function normally. As some NPCs are keyed to trigger on the defeat of these bosses, normally "hardmode-only" NPCs like the Steampunker can appear in an unmodified pre-hardmode world.