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Partially verifiedVersion: October 8, 2026 update; reference review October 13, 2026

Risk of Rain 2 Item Database: Effects, Stacking & Void Swaps

Search 257 item, equipment and special pickup records. Filter by type, inspect effects and compare the values that matter to your run.

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Armor-Piercing Rounds
CommonBase gameDeal an additional 20% damage (+20% per stack) to bosses.Linear; see the per-stack changes in Effect.Boss damageUnverifiedAny Survivor facing a bossBoss-only bonus; does not strengthen ordinary enemy hits.Unverified
Backup Magazine
CommonBase gameAdd +1 (+1 per stack) charge of your Secondary skill.Linear; see the per-stack changes in Effect.Secondary chargesUnverifiedSurvivors that use their Secondary repeatedlyExtra stored casts do not remove the skill cooldown.Unverified
Bison Steak
CommonBase gameIncreases maximum health by 25 (+25 per stack).Linear; see the per-stack changes in Effect.Maximum healthUnverifiedAny Survivor needing a flat health increaseFlat health is not healing or damage prevention.Unverified
CommonBase gameAfter 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).First copy: 4.5% health/s and 3m radius. Each additional copy: +2.25 percentage points/s and +1.5m; 1s stationary delay unchanged.Stationary team healingCorrupted by Weeping FungusEngineer with TR12 stationary turretsRequires one second without moving; mobile turrets do not maintain the zone.Unverified
Cautious Slug
CommonBase gameIncreases base health regeneration by +3 hp/s (+3 hp/s per stack) while outside of combat.Linear; see the per-stack changes in Effect.Recovery between attacksUnverifiedSurvivors able to disengageThe regeneration condition requires leaving combat; does not provide an instant heal.Unverified
CommonBase gameDeal +75% (+75% per stack) damage to enemies above 90% health.Each copy adds 75% opening damage; the target-health threshold stays above 90%.Opening burstUnverifiedRailgunner or Loader with a large opening hitBonus ends once the target falls to 90% health or below.Unverified
Energy Drink
CommonBase gameSprint speed is improved by 25% (+25% per stack).Linear; see the per-stack changes in Effect.Sprint mobilityUnverifiedSurvivors able to sprint during their main combat actionsDoes not provide its sprint bonus while walking or using a skill that cancels sprint.Unverified
Focus Crystal
CommonBase gameIncrease damage to enemies within 13m by 20% (+20% per stack).Linear; see the per-stack changes in Effect.Close-range damageUnverifiedLoader, Mercenary, Acrid or Acolyte fighting closeApplies only within 13m; unsafe proximity can outweigh the bonus.Unverified
Gasoline
CommonBase gameKilling an enemy ignites all enemies within 12m (+4m per stack) for 150% base damage. Additionally, enemies burn for 150% (+75% per stack) base damage.Linear; see the per-stack changes in Effect.On-kill group damageUnverifiedAny Survivor needing a way to spread a first killMust kill a target before it activates; no independent trigger on an isolated durable boss.Unverified
Lens-Maker's Glasses
CommonBase gameYour attacks have a 10% (+10% per stack) chance to 'Critically Strike', dealing double damage.Linear; see the per-stack changes in Effect.Critical hitsCorrupted by Lost Seer's LensesAttack builds that can critically strikeRailgunner converts critical chance differently; do not use the ordinary crit calculation for her.Unverified
Medkit
CommonBase game2 seconds after getting hurt, heal for 20 plus an additional 5% (+5% per stack) of maximum health.Linear; see the per-stack changes in Effect.Delayed recoveryUnverifiedSurvivors that can survive the delay after damageThe heal is delayed; it cannot prevent the hit that triggers it.Unverified
Paul's Goat Hoof
CommonBase gameIncreases movement speed by 14% (+14% per stack).Linear; see the per-stack changes in Effect.Movement speedUnverifiedAny Survivor needing ordinary movement speedAdds speed rather than a jump or a dedicated escape skill.Unverified
Soldier's Syringe
CommonBase gameIncreases attack speed by 15% (+15% per stack).Linear; see the per-stack changes in Effect.Attack speedUnverifiedSurvivors whose active attacks scale with attack speedDoes not shorten every skill cooldown; the value depends on the selected skills.Unverified
Repulsion Armor Plate
CommonBase gameReduce all incoming damage by 5 (+5 per stack). Cannot be reduced below 1.Linear; see the per-stack changes in Effect.Flat damage reductionUnverifiedSurvivors exposed to repeated small hitsIncoming damage cannot be reduced below 1; large hits remain dangerous.Unverified
Tougher Times
CommonBase game15% (+15% per stack) chance to block incoming damage. Unaffected by luck.Block chance stacks hyperbolically; the listed +15% wording is not an additive 100% guarantee. Luck has no effect.Random damage blockingCorrupted by Safer SpacesAny Survivor wanting passive protectionHyperbolic, luck-independent chance; no finite stack count guarantees every block.Unverified
Tri-Tip Dagger
CommonBase game10% (+10% per stack) chance to bleed an enemy for 240% base damage.Linear; see the per-stack changes in Effect.Bleed damageCorrupted by NeedletickFrequent-hit builds with eligible attack procsThe displayed chance depends on attack proc rules; Needletick replaces bleed with collapse.Unverified
Topaz Brooch
CommonBase gameGain a temporary barrier on kill for 15 health (+15 per stack).Linear; see the per-stack changes in Effect.Barrier from killsUnverifiedSurvivors clearing groups frequentlyBarrier is temporary and needs kills; does not directly restore lost health.Unverified
Mocha
CommonSurvivors of the VoidIncreases attack speed by 7.5% (+7.5% per stack) and movement speed by 7% (+7% per stack).Linear; see the per-stack changes in Effect.Attack and movement speedUnverifiedAttack builds that also need movementCombines smaller bonuses; does not replace a missing mobility skill.Unverified
Delicate Watch
CommonSurvivors of the VoidIncrease damage by 20% (+20% per stack). Taking damage to below 25% health breaks this item.Linear; see the per-stack changes in Effect.Damage with a health thresholdUnverifiedSurvivors able to protect their healthTaking damage below the break threshold destroys the damage benefit.Unverified
Oddly-shaped Opal
CommonSurvivors of the VoidIncrease armor by 100 (+100 per stack) while out of danger.Linear; see the per-stack changes in Effect.Protection before taking damageUnverifiedSurvivors vulnerable to an opening hitRequires being out of danger; it is not permanent armor during a sustained exchange.Unverified
UncommonBase game10% chance to fire a missile that deals 300% (+300% per stack) TOTAL damage.Each copy adds 300% TOTAL missile damage; the listed trigger chance remains 10%.On-hit total damageCorrupted by Plasma ShrimpFrequent eligible hits or large triggering hitsExtra copies increase missile damage, not the listed 10% chance; infinite Runic Lens chains were fixed.Unverified
UncommonBase game25% chance to fire chain lightning for 80% TOTAL damage on up to 3 (+2 per stack) targets within 20m (+2m per stack).Each additional copy adds 2 targets and 2m range; 25% listed chance and 80% TOTAL lightning damage remain unchanged.On-hit group coverageCorrupted by PolyluteFrequent-hit builds fighting several targetsExtra copies add targets and range, not trigger chance or lightning damage.Unverified
Hopoo Feather
UncommonBase gameGain +1 (+1 per stack) maximum jump count.Linear; see the per-stack changes in Effect.Additional jumpUnverifiedAny Survivor needing vertical repositioningA jump is not invulnerability; extra height still needs a safe landing.Unverified
Harvester's Scythe
UncommonBase gameGain 5% critical chance. Critical strikes heal for 8 (+4 per stack) health.First copy grants 5% crit and 8 health per critical hit; additional copies add 4 healing, not more of that 5% crit bonus.Healing on critical hitsUnverifiedCrit builds with repeated attacksThe 5% crit bonus is a first-copy benefit; extra copies improve healing.Unverified
Predatory Instincts
UncommonBase gameGain 5% critical chance. Critical strikes increase attack speed by 12%. Maximum cap of 36% (+24% per stack) attack speed.First copy grants 5% crit and a 36% attack-speed cap; further copies add 24 percentage points to the cap, not additional crit chance.Attack speed from critical hitsUnverifiedCrit builds using attack speedMore copies raise the attack-speed cap; they do not repeatedly grant the first-copy 5% crit bonus.Unverified
Fuel Cell
UncommonBase gameHold an additional equipment charge (+1 per stack). Reduce equipment cooldown by 15% (+15% per stack).Each copy adds an equipment charge and multiplies remaining equipment cooldown by 0.85.Equipment charges and cooldownCorrupted by Lysate CellEquipment-focused buildsCorruption into Lysate Cell removes equipment benefits in favor of Special skills.Unverified
Runald's Band
UncommonBase gameHits that deal more than 400% damage also blasts enemies with a runic ice blast, slowing them by 80% for 3s (+3s per stack) and dealing 250% (+250% per stack) TOTAL damage. Recharges every 10 seconds.Each copy adds 250% TOTAL blast damage and 3s slow duration; 80% slow and 10s cooldown remain unchanged.Heavy-hit burst and slowCorrupted by Singularity BandLoader, Railgunner or other heavy-hit loadoutsRequires a qualifying damage hit and a ready cooldown; Singularity Band replaces both normal bands.Unverified
UncommonBase gameHits that deal more than 400% damage also blasts enemies with a runic flame tornado, dealing 300% (+300% per stack) TOTAL damage over time. Recharges every 10 seconds.Each copy adds 300% TOTAL tornado damage; listed 10s cooldown and heavy-hit condition remain unchanged.Heavy-hit area damageCorrupted by Singularity BandLoader, Railgunner or other heavy-hit loadoutsRequires a qualifying damage hit and a ready cooldown; flame coverage matters against mobile targets.Unverified
Ignition Tank
UncommonSurvivors of the VoidIgnite effects deal +300% (+300% per stack) more damage over time.Linear; see the per-stack changes in Effect.Burn amplificationUnverifiedArtificer or any loadout with dependable igniteDoes not add ignite to attacks that lack a burn source.Unverified
UncommonSurvivors of the VoidActivating your Primary skill also throws a shuriken that deals 400% (+100% per stack) base damage. You can hold up to 3 (+1 per stack) shurikens which all reload over 10 seconds.Linear; see the per-stack changes in Effect.Supplemental Primary-triggered damageUnverifiedSurvivors that actively use Primary skillsLimited stored shurikens and reload time; do not assume unlimited throws.Unverified

257 item and equipment reference records from the October 12, 2026 community Wiki Items table: includes Meal, Hallowed, Hex, N'tormat pages, consumed objects and elite aspects. All 11 Hallowed items are included. Separate categories reflect their different acquisition and use rules; these are not 257 ordinary chest drops. Base game and four expansions are covered. Reviewed October 13 for the October 8 update. Listed effects are sourced; conditional fit and tradeoffs for the selected build-oriented entries are editorial judgments, not game-tested rankings. Null means not independently verified or not applicable. Equipment cooldown is the listed base value before inventory modifiers.