Find which mcMMO XP multiplier changes a player reward

Applies to: mcMMO; match the linked maintainer documentation to your installed platform and release.
Documentation checked 9 November 2026.

Unexpected skill XP can come from several multipliers rather than the block or action value alone. Compare a single controlled activity before changing the whole progression curve.

Check the installed content

mcMMO progress belongs to player data, while its configuration controls future skill behaviour. Preserve both before changing progression rules. Match the installed release when checking permissions and configuration; current configuration references identify changes that require a full server restart.

Work through the change

1. Record the skill, activity and displayed XP gain for one ordinary account. Save experience.yml and the permission assignments that may apply player or group multipliers.
2. Read the matching experience reference and list the relevant global, skill and player modifiers. Keep the base action reward distinct from the effective amount the player receives.
3. On staging, remove one optional modifier from a test account and repeat the same activity with equivalent tools and conditions. Use a normal full restart for configuration changes as directed by the maintainer docs.
4. Restore each modifier individually and record the result. Include a second account without the special group so you can separate server-wide settings from inherited permissions.

Verify the result

The recorded difference should be attributable to a particular modifier or combination. An ordinary account should receive the planned baseline without needing to reset any skill levels.

If the result differs

If the results vary between attempts, inspect bonuses, party sharing and activity eligibility before adjusting the base XP. A different block source or player state can invalidate an otherwise useful comparison.

Keep a recovery path

Restore the saved experience settings and temporary permission changes if the result is unclear. Keep existing player progress intact; changing future XP rates is separate from correcting or removing stored levels.

References and related help

Check the maintainer reference: mcMMO documentation, mcMMO documentation.

Before changing live data, read how to keep a completed recovery copy. For startup errors, use the log collection guide.