The Health gauge of Risk of Rain 2 is displayed in the bottom-left corner of the screen on the HUD. Taking damage reduces the player's health, but lost health naturally regenerates over time.
Contents
Regaining Health
Health Regeneration
All Survivors and some monsters regenerate health passively. The amount per second is determined by the character's base health regeneration, character level, and certain items such as 
Cautious Slug
Rapidly heal outside of danger.
Increases base health regeneration by +3 hp/s (+3 hp/s per stack) while outside of combat., 
Rejuvenation Rack
Double the strength of healing.
Heal +100% (+100% per stack) more., and 
Titanic Knurl
Boosts health and regeneration.
Increase maximum health by 40 (+40 per stack) and base health regeneration by +1.6 hp/s (+1.6 hp/s per stack)..
Proc effects
Lost health can also be replenished through on-hit effects such as 
Leeching Seed
Dealing damage heals you.
Dealing damage heals you for 1 (+1 per stack) health. and 
Harvester's Scythe
'Critical Strikes' heal you.
Gain 5% critical chance. Critical strikes heal for 8 (+4 per stack) health., active items such as 
Foreign Fruit
45sHeal on use.
Instantly heal for 50% of your maximum health., and 
Healing Drones. Incoming healing is modified by the Rejuvenation RackDouble the strength of healing.
Heal +100% (+100% per stack) more. and 
Corpsebloom
Double your healing... BUT it's applied over time.
Heal +100% (+100% per stack) more. All healing is applied over time. Can heal for a maximum of 10% (-50% per stack) of your health per second..
Shield
Shield works similarly to health. As characters suffer from damage, shields are emptied before health. Lost shields replenish over 2 seconds after the player takes no damage for 7 seconds. As a result. players must avoid damage for 9 consecutive seconds to fully regenerate their shields. Shield regeneration is separate from healing, so any modifiers to healing or effects that activate from healing will not apply to regenerating shields. Shields cannot be healed through normal means.
Note: Gaining shields will not increase healing that restores a percentage of the player's maximum health. Therefore, these items' healing is not affected by any shields the player has: 
Monster Tooth
Drop a healing orb on kill.
Killing an enemy spawns a healing orb that heals for 8 plus an additional 2% (+2% per stack) of maximum health., 
Medkit
Receive a delayed heal after taking damage.
2 seconds after getting hurt, heal for 20 plus an additional 5% (+5% per stack) of maximum health., 
Bustling Fungus
Heal all nearby allies after standing still for 1 second.
After standing still for 1 second, create a zone that heals for 4.5% (+2.25% per stack) of your health every second to all allies within 3m (+1.5m per stack)., 
Lepton Daisy
Periodically release a healing nova during the Teleporter event and 'Holdout Zones' such as the Void Fields.
Release a healing nova during the Teleporter event, healing all nearby allies for 50% of their maximum health. Occurs 1 (+1 per stack) times., 
Interstellar Desk Plant
Plant a healing fruit on kill.
On kill, plant a healing fruit seed that grows into a plant after 5 seconds.
The plant heals for 10% of maximum health every 0.5 second to all allies within 5m (+5.0m per stack). Lasts 10 seconds., Foreign Fruit45sHeal on use.
Instantly heal for 50% of your maximum health., 
Gnarled Woodsprite
15sHeal over time. Activate to send to an ally.
Gain a Woodsprite follower that heals for 1.5% of your maximum health/second. Can be sent to an ally to heal them for 10% of their maximum health. (both the passive and active component), 
Strides of Heresy
Replace your Utility Skill with 'Shadowfade'.
Replace your Utility Skill with Shadowfade.
Fade away, becoming intangible and gaining +30% movement speed. Heal for 18.2% (+18.2% per stack) of your maximum health. Lasts 3 (+3 per stack) seconds., and CorpsebloomDouble your healing... BUT it's applied over time.
Heal +100% (+100% per stack) more. All healing is applied over time. Can heal for a maximum of 10% (-50% per stack) of your health per second..
Shields will also not increase the damage from the 
Helfire Tincture
45sBurn everything nearby... including you and allies.
Ignite ALL characters within 15m for 12s. Deal 5% of your maximum health/second as burning to yourself. The burn is 0.5x stronger on allies, and 24x stronger on enemies., the amount of health converted to additional shield by 
Silence Between Two Strikes
Become an aspect of lightning., or the amount of fall damage taken.
Shields (both current and maximum) are treated as health for the purposes of 
Crowbar
Deal bonus damage to enemies above 90% health.
Deal +75% (+75% per stack) damage to enemies above 90% health., 
Old Guillotine
Instantly kill low health Elite monsters.
Instantly kill Elite monsters below 13% (+13% per stack) health., 
Old War Stealthkit
Turn invisible at low health.
Falling below 25% health causes you to gain 40% movement speed and invisibility for 5s. Recharges every 30 seconds (-50% per stack)., 
N'kuhana's Opinion
Fire haunting skulls when healed.
Store 100% (+100% per stack) of healing as Soul Energy. After your Soul Energy reaches 10% of your maximum health, fire a skull that deals 250% of your Soul Energy as damage., 
Shatterspleen
Critical strikes always bleed enemies. Bleeding enemies now explode.
Gain 5% critical chance. Critical Strikes bleed enemies for 240% base damage. Bleeding enemies explode on death for 400% (+400% per stack) damage, plus an additional 15% (+15% per stack) of their maximum health., 
Genesis Loop
Fire an electric nova at low health.
Falling below 25% health causes you to explode, dealing 6000% base damage. Recharges every 30 / (2 +1 per stack) seconds ., 
Fuel Array
Looks like it could power something. EXTREMELY unstable..., 
Brittle Crown
Gain gold on hit... BUT lose gold on getting hit.
30% chance on hit to gain 2 (+2 per stack) gold. Scales over time.
Lose gold on taking damage equal to 100% (+100% per stack) of the maximum health percentage you lost., barrier gain and limit from all sources (
Topaz Brooch
Gain a temporary barrier on kill.
Gain a temporary barrier on kill for 15 health (+15 per stack)., 
Aegis
Healing past full grants you a temporary barrier.
Healing past full grants you a temporary barrier for 50% (+50% per stack) of the amount you healed., and 
Loader's Scrap Barrier), 
REX's skills, one-shot protection, and the damage from the 
Void Fields.
Shield is indirectly influenced by 
Shaped Glass
Double your damage... BUT halve your health.
Increase base damage by 100% (+100% per stack). Reduce maximum health by 50% (+50% per stack). and 
Spinel Tonic
60sGain a massive boost to ALL stats. Chance to gain an affliction that reduces ALL stats.
Drink the Tonic, gaining a boost for 20 seconds. Increases damage by +100%. Increases attack speed by +70%. Increases armor by +20. Increases maximum health by +50%. Increases passive health regeneration by +300%. Increases movespeed by +30%.
When the Tonic wears off, you have a 20% chance to gain a Tonic Affliction, reducing all of your stats by -5% (-5% per stack)., since all sources of shield are based on the player's maximum health (which these items modify). As a result, maximum shield is modified as well. The same effect occurs with the 
Pearl
Increase your maximum health.
Increases maximum health by 10% (+10% per stack). and 
Irradiant Pearl
Increase ALL of your stats.
Increases ALL stats by 10% (+10% per stack)..
The 
Personal Shield Generator
Gain a recharging shield.
Gain a shield equal to 8% (+8% per stack) of your maximum health. Recharges outside of danger. is a unique case, as it grants shields based on the user's actual maximum health, ignoring 
Transcendence
Convert all your health into shield. Increase maximum health.
Convert all but 1 health into regenerating shields. Gain 50% (+25% per stack) maximum health.. This means the Personal Shield Generator does not benefit from the health bonus Transcendence applies to health-providing items; however, neither does it suffer from Transcendence's health reduction. The Personal Shield Generator still benefits from the increased maximum health of 
Infusion
Killing an enemy permanently increases your maximum health, up to 100.
Killing an enemy increases your health permanently by 1 (+1 per stack), up to a maximum of 100 (+100 per stack) health. normally.
Barrier
Applied temporary barrier.
Barrier is displayed over the health gauge, but it degrades rapidly over time at a rate of 3.33% of the player's maximum health per second. When taking damage, barriers are depleted before shields.
- The maximum amount of barriers a player can have is equal to their current HP plus their current shields.
- Barrier can be used to circumvent the negative effect of
Shaped GlassDouble your damage... BUT halve your health.
Increase base damage by 100% (+100% per stack). Reduce maximum health by 50% (+50% per stack)., as it can double the player's halved max health temporarily.
Curse
Curse is an internal attribute that lowers maximum health. Curse prevents the player's health from healing back to full and is capable of disabling OSP if Curse is equal to or greater than 10% of maximum health.
The health reduction is calculated as CombinedHealth/Curse
where
CombinedHealthisHealth + ShieldCurseis1 ⋅ 2^ Shaped GlassDouble your damage... BUT halve your health.
Increase base damage by 100% (+100% per stack). Reduce maximum health by 50% (+50% per stack). ⋅ 10 (ifArtifact of Glass is active) + 0.01 ⋅ Permanent Curse + 0.1 ⋅ Tonic Affliction48pxReduce ALL stats when not under the effects of Spinel Tonic.
Reduce ALL stats by -5% (-5% per stack)..
Death
When a Survivor's health reaches 0 or less, they die. If all Survivors in the group are dead, the run ends, and a statistics screen appears. 
Dio's Best Friend
Cheat death. Consumed on use.
Upon death, this item will be consumed and you will return to life with 3 seconds of invulnerability. causes the holder to return to life one time upon death, restoring them to full health and making them 
invulnerable for 3 seconds.
Version History
- Gameplay Changes
- Low Health Threshold
- 20% ⇒ 25%
- Low Health Threshold
- Bug Fixes
- Healing numbers are properly green
- Quality of Life
- Add a new death visual effect for players so it’s clearer when they die
- 🌧 Update Game End Report to use special strings and icon if no killer is found
- Change "Killed by" text to be right-aligned so it can fit longer names
- Gameplay Changes
- Update regens to not be multipliers, but scaling flat bonuses to decouple benefits of regen items from base regen
- The result of this is that all characters regardless of their baseline regeneration all benefit the same from regen items. This will only affect melee characters WITH regen items - nobody else is affected.
- Update regens to not be multipliers, but scaling flat bonuses to decouple benefits of regen items from base regen
- Gameplay Changes
- Health Regeneration
- Increase Player's Health Regeneration by +66% in Rainstorm difficulty.
- Increase Drone Health Regeneration by +150% in ALL difficulties
- Increase Player's Health Regeneration by +66% in
- Health Regeneration
- Bug Fixes
- 🌧︎Replace instances of unknown deaths (pots, out-of-bounds, etc) having a white box and a blank entry with a generic “mystery” attacker
- Gameplay Changes
- Add support for new health-type: Barrier
- Barrier is a health value that can exceed your maximum health, but degrades over time.
- Add new stat: Curse
- Curse is the old Shaped Glass functionality, which locks away a portion of your healthbar - it has been moved over to a generic stat so we can use it for other items in the future.
- Disable Base Health Regeneration if on fire
- Add support for new health-type: Barrier
- QOL
- ☂ Player healthbars now flash when at low health
- Bug Fixes
- Losing max shields now properly removes extra shield
- Bug Fixes
- [Community Found] Allow changes in maximum health/shield to instantly fill that missing amount. This means that Wake of VulturesTemporarily steal the power of slain elites.
Gain the power of any killed elite monster for 8s (+5s per stack). / TranscendenceConvert all your health into shield. Increase maximum health.
Convert all but 1 health into regenerating shields. Gain 50% (+25% per stack) maximum health. will no longer give you empty shield.
- [Community Found] Allow changes in maximum health/shield to instantly fill that missing amount. This means that
