Quantity Tome increases your Projectile Count (投射物数量) for weapons that use projectile-type attacks. It does not affect non-projectile area weapons like Aura, Frostwalker, or Dragon's Breath.
Sources: Destructoid (Sep 29, 2025), GameRant (Oct 1, 2025), Steam Community Guides (Sep 28, 2025)
Overview
- Stat: Projectile Count (Attack Instances)
- Base upgrade per level: +1 projectile (Common rarity)
- How to unlock: Fire 5,000 projectiles (community consensus: progress is cumulative across runs)
- Max level: 99 (community/media consensus; not officially documented)
Quantity Tome is highly valued for projectile-based weapons in Megabonk. By multiplying the number of projectiles or attacks, it can dramatically increase DPS and screen coverage. However, weapon compatibility is critical—some weapons benefit massively while others gain nothing at all.
Projectile Count by Rarity
Higher rarity upgrades provide bonus projectiles beyond the base +1 (based on community-validated data):
| Common | Uncommon | Rare | Epic | Legendary |
|---|---|---|---|---|
| +1 | +1.2 | +1.4 | +1.6 | +2 |
Legendary upgrades add double the projectiles! Combine with Luck Tome for more high-rarity rolls.
Note: These multipliers are from community testing. Official values not documented.
Sources: Steam Guide "Weapon and Tome Upgrades" (Sep 28, 2025), Community rarity testing
Projectile Count Scaling
Example progression (assuming Common rarity +1/level and base projectile count of 1):
⚠️ Important Assumptions:
- These calculations assume Common rarity (+1/level) and base projectile count of 1
- Actual values vary by weapon's base projectile count
- Rarity multipliers (e.g., Legendary +2) significantly alter these numbers
- High projectile counts may have visual display limitations (but damage still applies)
Sources: Amiibo Doctor (Oct 9, 2025), Deltia's Gaming (Oct 16, 2025)
Effects
- Adds extra projectiles or attack instances for compatible weapons
- Does NOT affect Aura, Frostwalker, or Dragon's Breath
- Linear scaling - each level adds +1 projectile (Common base)
- Part of DPS formulas that may interact multiplicatively with other stats (exact formulas are community-derived)
- Improves both single-target DPS and crowd control
- More projectiles = better screen coverage
Sources: Steam discussions (Sep 29, 2025), Reddit r/MegabonkOfficial (Sep 2025)
Weapon Compatibility
CRITICAL: Not all weapons benefit from Quantity Tome. Check compatibility before investing!
Projectile-based weapons benefit significantly from Quantity Tome. Examples include (but are not limited to):
See the full weapons database for complete compatibility details.
Some weapons have limited or conditional benefits. Examples include melee weapons with projectile components, or weapons where Quantity affects secondary effects. Test before heavy investment.
These weapons typically do NOT benefit from Quantity Tome:
These weapons lack Projectile Count in their upgrade paths, indicating no benefit from Quantity Tome.
Sources: Steam Guide weapon upgrade tables (Sep 28, 2025), Reddit discussions (Sep 2025)
How to Unlock
Fire 5,000 projectiles (community/media consensus: cumulative across runs).
This happens naturally over time with ranged builds.
- 💡 Tip: Progress is widely believed to be cumulative across all runs (though not officially confirmed)
- 💡 Tip: Play with projectile-based weapons to unlock faster
- 💡 Tip: One of the easiest and earliest Tome unlocks
- 💡 Tip: Check in-game Quests menu to track progress
Sources: GameRant (Oct 6, 2025), DualShockers (Oct 3, 2025)
Popular Synergies (Build Suggestions)
Many build guides suggest pairing Quantity Tome with the following for enhanced DPS and screen coverage:
Note: These are build strategy suggestions from community guides. Exact stat interactions (additive vs. multiplicative) vary. Consult community formulas for details.
Sources: TheGamer (Oct 12, 2025), ProGameGuides (Oct 2025), Steam formulas (Sep 28, 2025)
Strategy Guide
- Highly valuable with projectile-based weapons
- Some weapons don't benefit, so prioritize only if your weapon is compatible
- Community guides suggest combining with other offensive Tomes for enhanced scaling
- Perfect for screen clear builds
- Effective against both crowds and bosses
- Linear scaling means consistent value at every level
When to Use Quantity Tome
- ✅ Best for: Projectile-based weapons (Bow, Revolver, Lightning Staff, etc.)
- ✅ Best for: Building for pure DPS optimization
- ✅ Best for: Combining with Damage and Cooldown Tomes
- ✅ Best for: Improving crowd control and screen coverage
- ❌ Skip for: Aura, Frostwalker, and Dragon's Breath (typically no effect)
- ❌ Skip for: Builds that don't fire projectiles
- ⚠️ Test first: Melee weapons or weapons with unclear projectile mechanics
Pro Tips & Important Notes
- Highly valued by the community for compatible weapons
- Unlock condition is straightforward and comes naturally with ranged play
- At max level (99), can provide ~100 total projectiles (assuming Common +1/level and base of 1)
- Linear scaling means every level is equally valuable
- Works best when invested in early for consistent growth
- Can dramatically impact runs when paired with compatible weapons
- Community-suggested "DPS trinity": Damage + Quantity + Cooldown Tomes
- Higher rarity upgrades (Legendary = +2 projectiles) make it even stronger
- High projectile counts may have visual display limitations but still apply full damage
Data Accuracy & Version Notes
ℹ️ Important Information About This Page:
- Max Level (99): Based on community consensus and multiple media sources; not officially documented by developers
- Per-Level Values (+1 Common): From community testing and widely-referenced Steam guides
- Rarity Multipliers (1.0/1.2/1.4/1.6/2.0): Community-validated data; official formulas not published
- Unlock Progress (cumulative): Community belief; not explicitly confirmed by official sources
- Weapon Compatibility: Based on weapon upgrade path data from community guides
- Stat Interactions: Some stats may interact additively or multiplicatively; consult community formula documentation
Always verify values with the latest patch notes and in-game testing.
Primary Sources: Destructoid (Sep 2025), GameRant (Oct 2025), DualShockers (Oct 2025), Steam Community Guides (Sep 2025), Amiibo Doctor (Oct 2025), Reddit r/MegabonkOfficial (Sep-Oct 2025)