The Regen Tome improves your natural health regeneration in Megabonk. Each level increases the amount of HP you recover per minute, making it easier to survive long runs and recover from mistakes. Unlike burst healing, regeneration provides consistent, reliable sustain throughout your entire run.

Overview

  • Stat: HP Regen
  • Base upgrade per level: +40 HP per minute
  • How to unlock: Default (available at start)
  • Max level: 99

Regeneration is the foundation of sustain-focused builds. While it won't save you from burst damage, it allows you to recover between encounters and maintain your health pool during prolonged fights. Essential for characters who lack innate healing.

Regeneration Rates

See how your passive healing scales with investment:

+200 HP/min
Level ~5
~3.3 HP per second. Noticeable sustain against light chip damage.
+600 HP/min
Level ~15
~10 HP per second. Can outheal sustained light damage during fights.
+1,200 HP/min
Level ~30
~20 HP per second. Significant healing that covers most chip damage sources.
+2,000+ HP/min
Level 50+
~33+ HP per second. Near-immortal against anything but heavy burst damage.

Effects

  • Grants passive HP recovery over time
  • The regen stacks with other sustain effects
  • Particularly useful in endurance runs where chip damage adds up
  • Works continuously - even during combat
  • Scales with max HP for percentage-based healing items

How to Unlock

✅ Unlocked by Default

This Tome is available from the start of the game. No special condition is required.

Regen vs Health Tome

💚 Understanding the Difference

Both are defensive Tomes, but they serve different purposes:

💚 Regen Tome
Continuous healing
Recovers HP over time. Better for long runs with downtime. Allows you to recover from mistakes. More valuable in extended encounters.
❤ī¸ Health Tome
Burst capacity
Increases maximum HP pool. Better for surviving one-shot mechanics. Provides immediate buffer. More valuable in short, intense fights.

Best together: Combining both creates a nearly unkillable tank with high HP and constant recovery.

Synergies

Health Tome Health Tome
More max HP means regen has a larger pool to work with. The ultimate sustain combo.
Shield Tome Shield Tome
Shield buys time for HP regen to tick back up. Perfect defensive layering.
Bloody Tome Bloody Tome
Extra sustain from lifesteal plus passive regen. Multiple healing sources for maximum recovery.
Armor Tome Armor Tome
Taking less damage makes regen more effective. Each point of healing goes further.
Cursed Tome Cursed Tome
Higher enemy pressure makes sustain critical. Regen keeps you alive in chaos.
Evasion Tome Evasion Tome
Dodging attacks gives regen time to work. Avoidance plus healing creates safety.

Strategy Guide

  • Works best if you can avoid constant damage, letting the regen kick in
  • Strong defensive pick for learning players who struggle with mistakes
  • Not as explosive as lifesteal but more reliable over time
  • Essential for boss fights with phases and downtime
  • Particularly valuable in long runs where sustainability matters
  • Combine with damage reduction to maximize healing efficiency

Best Use Cases

  • Long endurance runs - Continuous healing over extended periods
  • Learning the game - Forgiveness for mistakes and chip damage
  • Tank builds - Foundation of all sustain-heavy strategies
  • Kiting playstyles - Heal while maintaining distance from enemies
  • Characters without innate healing - Fill the sustain gap
  • Runs with frequent weapon swaps - Passive healing during transitions

Pro Tips

  • Consistent healing source that helps in all builds
  • Scales nicely in long stages where downtime allows for full recovery
  • More effective when combined with damage mitigation (armor, shields, evasion)
  • At max level (99), provides 3,960 HP per minute (~66 HP/second)
  • Works even at 1 HP - can save you from death if you survive long enough
  • Stack with percentage-based healing items for exponential recovery
Tomes HP Regen A-Tier Sustain Defense Healing