Overview
Duration Tome increases how long attacks and projectiles persist in the world before disappearing. This creates longer-lasting effects, better battlefield control, and more opportunities for damage. Particularly powerful with lingering projectiles and AoE zones.
Key Benefit: Projectiles and effects that linger in the world will stay active significantly longer, covering more area and hitting more enemies over their lifetime. This tome transforms short-lived attacks into persistent battlefield control tools.
Duration Progression (Estimated)
Based on ~+15% per level community data. Actual values may vary by weapon:
Visual Duration Comparison
See the dramatic difference Duration Tome makes (example values):
Longer duration = better battlefield control, more total damage, and safer positioning!
Note: Base duration varies by weapon. Poison Flask starts at 3s, Flamewalker at 1.5s, etc.
Effects
- Projectiles and lingering effects last longer before disappearing
- Works well with weapons that cover large areas or create zones
- Extends both offensive and utility effects, depending on your build
- Creates overlapping layers of damage with consistent attack speed
- Improves battlefield control and area denial
- Increases total damage output for duration-based abilities
- Moving projectiles travel farther (alive longer = more distance covered)
Weapon Compatibility
Duration Tome effectiveness varies dramatically by weapon type. Using official weapon names:
Lingering projectiles, AoE zones, and persistent effects:
How to Unlock
Unlock Duration Tome
Requirement: Upgrade Axe to Level 10
To unlock Duration Tome, you need to fully upgrade the Axe weapon to Level 10. Axe is a spinning projectile weapon that benefits greatly from duration itself, making this a thematic unlock. Focus on picking up Axe upgrades during runs to progress toward this unlock.
Synergies
Strategy Guide
- Best used with weapons or skills that linger, like AoE fields, spinning attacks, or slow projectiles
- Not as strong on weapons with instant-hit attacks
- Strong pick for players who want more screen control and safer zoning
- Excellent for area denial builds that keep enemies at bay
- Combine with Size for maximum battlefield dominance
- Particularly powerful in boss fights with adds
- Test with your weapon first - if it doesn't create lasting effects, skip Duration
When to Use Duration Tome
- â Perfect for: Lingering projectile weapons (Axe, Bananarang, Tornado)
- â Perfect for: AoE zone weapons (Poison Flask, Flamewalker, Aura)
- â Perfect for: Builds focused on screen control and area denial
- â Perfect for: Combining with Size/Cooldown for overlapping coverage
- â Skip for: Instant-hit weapons (Lightning Staff, melee with no projectiles)
- â Skip for: Single-target focused strategies
- â Skip for: Fast-moving projectiles that already cross the screen quickly
Pro Tips
- At high levels, provides massive duration bonuses - effects can last many times longer than base
- Unlock is tied to Axe progression, so some players may not see it until later
- A situational but very powerful Tome in the right build
- Works exceptionally well with "set and forget" AoE weapons
- Duration affects projectile travel time, making slow projectiles cover more distance
- Can turn mediocre screen coverage into complete battlefield dominance
- Base duration varies by weapon - Poison Flask (3s), Flamewalker (1.5s), etc. Check weapon tooltips!
Community Tier Ratings
Tier Note: Duration Tome is highly build-dependent. Community ratings vary significantly based on weapon choice and playstyle:
- For duration-based weapons: Often rated as top-tier (S/A-tier) by multiple sources
- For instant-hit weapons: Generally rated low-tier (C/D-tier)
- Twinfinite & PCGamesN: Ratings vary by build context
This tome's value is entirely dependent on your weapon loadout. Always evaluate based on your specific build rather than general tier lists.
Data sources and update method
đ Data Sources & Confidence
- Values: ~+15% per level - community-reported based on v1.0.7-era testing (September 2025)
- Max Level: Widely reported as ~99 by multiple community sources but not officially documented
- Unlock: Axe Level 10 - verified across multiple sources (October 2025)
- Weapon Names: Official game names used throughout based on TheGamer and Steam guides
- Weapon Base Durations: Based on Steam community guides showing weapon-specific values
- Version: Based on v1.0.7-v1.0.12+ data (September-October 2025)
â ī¸ Always verify current patch values in-game. Base duration varies significantly by weapon - check tooltips for accurate numbers. Megabonk is in active development; mechanics may change.