Current systems reference ยท Updated July 24, 2026

Megabonk Mechanics Guide

Find the rule that answers your question: run timing, Shrines, temporary Powerups, status effects, damage scaling, proc triggers or linear stat growth.

Start with the system you are trying to understand.

Quick Answer

This page is the index for Megabonk's mechanics, not another duplicate stats page. Use Timer for when events happen, Shrines and Powerups for run rewards, and the combat math guides when a build's damage or proc behavior is unclear.

Version note: mechanics can change with patches. Check the linked guide's current values and the latest Patch Notes before using an old breakpoint or timing.

Find the Answer by Search Intent

What you are trying to answerStart hereWhat it covers
When does the Boss or Final Swarm happen?Timer ExplainedStage timeline, overtime, Final Swarm and Crypt differences.
Why can I not find, open or enter a Portal?Boss Portal GuideRandom location, activation, Tier 1 limits and safe troubleshooting.
What does a Shrine do?Shrines GuideCharge, Greed, Boss Curse, rewards, routing and related unlocks.
What does the Microwave do?Microwave GuideItem duplication, Gold and same-rarity costs, use limits and unlock routes.
Is this pickup an Item or Powerup?Powerups GuideCategory boundaries, multiplier math, drop chance and Hero Sword rules.
Why did this effect trigger or fail?Status EffectsPoison, stun, burn and debuff behavior.
Why is my damage not the displayed value?Damage BracketsDamage multiplier order and bracket behavior.
How do Items trigger other Items?Proc CoefficientTrigger relationships and coefficient scaling.
Is this stat additive or multiplicative?Scaling TypesLinear, additive and scaling behavior used by builds.

Combat Math and Build Rules

Damage

Damage Brackets

Understand which damage multipliers apply together and why an in-game number can differ from a simple stat total.

Triggers

Proc Coefficient

Trace Item-to-Item triggers before choosing a build around repeated effects.

Scaling

Scaling Types

Identify additive and linear growth so upgrade priorities match the actual formula.

For the underlying HP, Armor, Damage, Crit, Luck and movement values, use the Stats Guide. This Hub routes mechanics questions rather than replacing stat definitions.

Run Systems and Reward Rules

Timeline

Timer and Final Swarm

Use the 10-minute preparation window and know when overtime pressure begins.

Navigation

Boss Portal

Find the random portal, activate the boss, and diagnose a missing next-stage exit.

Interaction

Shrines

Compare Charge, Greed and Boss Curse before routing through a map.

Duplication

Microwave

Choose an Item to duplicate, calculate the same-rarity sacrifice, and plan Noelle or Moldy Gloves unlock runs.

Debuffs

Status Effects

Use the effect-specific rules when planning poison, stun, burn or other debuff builds.

Mechanics FAQ

What should I learn first in Megabonk?

Start with the Timer guide, then learn Shrines and Powerups. Move to combat math when a build depends on scaling or proc behavior.

What is the difference between an Item, Powerup and Shrine reward?

They are separate reward systems. Powerups are temporary in-run pickups; Items are inventory effects; Shrine rewards come from Shrines. The Powerups guide explains the boundary.

Where can I learn Megabonk damage scaling?

Use Damage Brackets for multiplier order, Scaling Types for additive and linear behavior, and Proc Coefficient for Item-trigger interactions.

Are these mechanics guides current?

This Hub was updated July 24, 2026. Check the focused guide and latest Patch Notes after a version update.