advancement
Under Lock and Key Advancement - Minecraft
Unlock a Vault with a Trial Key - a task advancement in the Adventure tab.
Under Lock and Key — advancement details
Under Lock and Key is on the Adventure tab of the advancements screen. It is a task frame, following Minecraft: Trial(s) Edition.
Advancements this unlocks
Overview
Under Lock and Key is part of the Adventure advancement tab in Minecraft 1.21.4. Unlock a Vault with a Trial Key This page covers its real unlock trigger and what it unlocks next.
Step-by-step walkthrough
- Aim to satisfy: Unlock a Vault with a Trial Key
- The real unlock trigger is: Item used on block.
- Completing "Under Lock and Key" unlocks 1 follow-up advancement: Revaulting.
Pro tips
- Advancements often chain together - completing related ones nearby unlocks the next tier automatically.
- Some advancements require rare drops or specific mob interactions; farming setups can make repeat attempts much faster.
Difficulty and time commitment
- Difficulty: Easy
- Estimated time per run: 15-45 min
Frequently Asked Questions
What tab is "Under Lock and Key" in?
"Under Lock and Key" belongs to the Adventure advancement tab.
Do I need another advancement first?
Yes - you need to unlock "Minecraft: Trial(s) Edition" before "Under Lock and Key" becomes available.
Is "Under Lock and Key" a Task, Goal, or Challenge advancement?
"Under Lock and Key" is a Task-tier advancement, shown with the standard square task frame in-game.
What exactly triggers "Under Lock and Key"?
The real game data lists trigger: Item used on block.
What does "Under Lock and Key" unlock next?
Completing "Under Lock and Key" makes 1 more advancement available: Revaulting.