XP Penalty

Control what happens to a player’s experience on death.

exp:
  enabled: true
  keep: false
  lose-levels: -1

Key	Default	Description
enabled	true	Toggle the XP penalty.
keep	false	true = keep all levels and XP (nothing is lost).
lose-levels	-1	Used when keep: false — how XP is lost (see below).

lose-levels values

Value	Effect
-1	Vanilla — XP drops on the ground as orbs, as normal.
0	Wipe — all levels and XP are removed on respawn.
N	Remove N levels on respawn.

Examples

# keep everything
exp: { enabled: true, keep: true }

# brutal: lose it all
exp: { enabled: true, keep: false, lose-levels: 0 }

# lose 5 levels
exp: { enabled: true, keep: false, lose-levels: 5 }

keep: true overrides lose-levels. With keep: false and lose-levels: -1, behaviour matches vanilla Minecraft (orbs drop and part is recoverable).