Megabonk Tomes: All 23, Upgrade Values, Unlocks & What Luck Does

Updated October 22, 2026 · Patch covered: Megabonk v1.0.69 (Feb 4, 2026), still the latest on Steam as of Oct 22, 2026

All tomes

"Per upgrade" is the common-rarity amount measured by a player on v1.0.7; Uncommon is 1.2x, Rare 1.4x, Epic 1.6x and Legendary 2x that amount. "Charge Shrine" is what a shrine offer of that stat gave in the same test. Unlocks and Silver costs are from the Megabonk Fandom wiki.

• Damage Tome

  Raises Damage

  Increases the damage of your attacks.

  Per upgrade +0.08x Damage (multiplier) · Charge Shrine +12%

  Unlock Unlocked by default

• Cooldown Tome

  Raises Attack Speed

  How quickly you shoot projectiles and perform attacks.

  Per upgrade +7.5% Attack Speed · Charge Shrine +6%

  Unlock Unlocked by default

• Quantity Tome

  Raises Projectile Count

  Increases the number of attacks and projectiles.

  Per upgrade +1 Projectile · Charge Shrine +1

  Unlock Fire 5,000 projectiles · 9 Silver

• Size Tome

  Raises Size

  The size of your attacks, projectiles, explosions and more.

  Per upgrade +10% Size · Charge Shrine +8%

  Unlock Unlocked by default

• Projectile Tome

  Raises Projectile Speed

  The speed of your projectiles.

  Per upgrade +15% Projectile Speed · Charge Shrine +10%

  Unlock Unlocked by default

• Precision Tome

  Raises Crit Chance

  Chance to deal critical damage. Over 100% Crit Chance lets you Overcrit for more damage.

  Per upgrade +7% Crit Chance · Charge Shrine +5%

  Unlock Unlocked by default

• Duration Tome

  Raises Duration

  How long your attacks and projectiles last.

  Per upgrade +15% Duration · Charge Shrine +8%

  Unlock Upgrade Axe to level 10 · 9 Silver

• Knockback Tome

  Raises Knockback

  How far you push enemies when you hit them.

  Per upgrade +20% Knockback · Charge Shrine +10%

  Unlock Unlocked by default

• XP Tome

  Raises XP Gain

  More XP from all sources.

  Per upgrade +9% XP Gain · Charge Shrine +7.5%

  Unlock Break 20 pots in one run · 12 Silver

• HP Tome

  Raises Max HP

  Max HP.

  Per upgrade +25 Max HP · Charge Shrine +15

  Unlock Unlocked by default

• Regen Tome

  Raises HP Regen

  HP regenerated per minute.

  Per upgrade +40 HP Regen · Charge Shrine +20

  Unlock Unlocked by default

• Shield Tome

  Raises Shield

  Absorbs damage before your HP; regenerates quickly after a while without taking damage.

  Per upgrade +25 Shield · Charge Shrine +5

  Unlock Unlocked by default

• Armor Tome

  Raises Armor

  Reduces the damage you take.

  Per upgrade +12% Armor · Charge Shrine +5%

  Unlock Kill 5,000 enemies as Sir Oofie · 9 Silver

• Evasion Tome

  Raises Evasion

  Chance to avoid an attack completely.

  Per upgrade +10% Evasion · Charge Shrine +5%

  Unlock Unlocked by default

• Bloody Tome

  Raises Lifesteal

  Chance to heal 1 HP when you hit an enemy; over 100% guarantees 1 and may heal 2.

  Per upgrade +10% Lifesteal · Charge Shrine +6%

  Unlock Kill 12,000 enemies · 9 Silver

• Thorns Tome

  Raises Thorns

  Damages enemies when they attack you.

  Per upgrade +15 Thorns · Charge Shrine +5

  Unlock Block 250 attacks with Aegis · 9 Silver

• Agility Tome

  Raises Movement Speed

  How fast you move.

  Per upgrade +15% Movement Speed · Charge Shrine +8%

  Unlock Unlocked by default

• Attraction Tome

  Raises Pickup Range

  How far away you pick up XP.

  Per upgrade +75% Pickup Range · Charge Shrine +20%

  Unlock Use the Shrine of Succ 8 times · 9 Silver

• Luck Tome

  Raises Luck

  Better chance of higher-rarity offers from level-ups, shrines and more.

  Per upgrade +7% Luck · Charge Shrine +5%

  Unlock 0.01% drop chance per kill · 10 Silver

• Gold Tome

  Raises Gold Gain

  More gold from all sources.

  Per upgrade +12% Gold Gain · Charge Shrine +7.5%

  Unlock Unlocked by default

• Silver Tome

  Raises Silver Gain

  More Silver from all sources (Silver buys unlocks between runs).

  Per upgrade +12% Silver Gain · Charge Shrine +7.5%

  Unlock Unlocked by default

• Cursed Tome

  Raises Difficulty

  Raises Difficulty: more enemies, with more health, speed and damage.

  Per upgrade +3.5% Difficulty · Charge Shrine +8%

  Unlock Beat the stage boss in under 5 minutes

• Chaos Tome

  Raises Random stat

  Boosts a random stat each time.

  Unlock Charge every Charge Shrine on a Tier 3 run (all 3 stages) without leaving a charge zone

The Chaos Tome has the hardest unlock in the game; see the Chaos Tome guide.

How tome stats stack

From the same player guide's tests on v1.0.7. Labeled "tested" where the author says it was validated.

• Damage (tested): weapon Damage × character Damage. Character Damage is the starting value × Damage Tome × (1 + shrine Damage). The Damage Tome is the only tome that starts at 1x and multiplies.
• Projectile Count: added. Weapon count + Quantity Tome + shrines.
• Size and Pickup Range (tested): tome and shrine percentages are added together, then multiply the starting value.
• Armor and Evasion (tested): diminishing returns. The tome adds to a hidden value, and what you get is shown below.

In practice: the first few Armor or Evasion levels are worth much more than the tenth, while the Damage Tome keeps scaling.

What Luck and Difficulty actually do

• Luck improves the rarity of the choices you are offered: level-up upgrades, shrine stat boosts and Moa statue items. A player guide notes rare and even legendary offers still appear at 0% Luck, so Luck shifts the odds rather than gating them. Fox gains Luck every level, and the Clover item adds +10%.
• Difficulty (Cursed Tome, +3.5% per common upgrade) raises enemy health, damage, speed and, most importantly, count. More enemies means more XP and gold, so it speeds up leveling if your build can handle it. The same guide puts the practical ceiling at around 600–700%.

Build tomes around your weapons' stat lists: see the weapons page and the build planner.

FAQ