Parm Aegis is a passive item that increases invulnerability duration after taking damage by 50ms per level. It is required to evolve Discus into Stellar Blade and Iron Shield into Dark Iron Shield. Below is the at-a-glance reference, then the unlock walkthrough and full evolution guide.
Parm Aegis adds 50ms (0.05 seconds) of invulnerability after the player takes damage. The bonus stacks additively across 5 levels for a maximum of +250ms. Per the official Vampire Survivors Wiki, the stacking is purely additive, not multiplicative.
Parm Aegis is a defensive passive item from the Ode to Castlevania DLC. Unlike most passives that boost a stat percentage, Parm Aegis grants a flat 50ms (0.05 second) of additional invulnerability frames every time the player takes a hit. This protects against the rapid follow-up damage that occurs when the player gets caught in an enemy cluster.
| Level | Cumulative Invulnerability |
|---|---|
| Level 1 | +50ms (0.05s) |
| Level 2 | +100ms (0.10s) |
| Level 3 | +150ms (0.15s) |
| Level 4 | +200ms (0.20s) |
| Level 5 (max) | +250ms (0.25s) |
Vampire Survivors enemies deal damage on contact, and standing inside a cluster of fast-moving enemies normally results in repeated hits per second. Each hit triggers a brief default invulnerability window. Parm Aegis extends that window, reducing total damage taken when surrounded.
The mechanic is most valuable on:
Parm Aegis is found as a stage pickup. The most common location is the Ode to Castlevania stage, north of the Giant Medusa Head boss area (requires Stallion Gate). It also spawns on The Coop and Emerald Diorama stages. Once collected once, it appears in level-up rolls for all future runs.
Parm Aegis cannot be found through standard level-up rolls before it is unlocked. Per the official wiki, the item must first be picked up off a stage in person. Once collected once, it joins the standard level-up pool and can appear as a chest reward or level-up choice in future runs.
The Ode to Castlevania stage hosts Parm Aegis north of the 
Giant Medusa Head boss area. The Stallion Gate must be unlocked first, since it controls access to the upper castle areas.
| Step | Action |
|---|---|
| 1 | Unlock the Stallion Gate (a Castlevania map relic) by reaching it from the starting area. |
| 2 | Travel north past the Giant Medusa Head boss encounter area in any run. |
| 3 | The Parm Aegis pickup is on the ground in the dinner room inside the Art Gallery section. |
| 4 | Walk over it. Parm Aegis is now permanently unlocked and will appear in level-up rolls and stage spawns. |
Per the official wiki, Parm Aegis also spawns as a stage item on The Coop (Emerald Diorama free DLC) and on the Emerald Diorama stage itself. Either location works for the initial unlock without requiring the Castlevania DLC. The Coop is recommended because it is a small contained map where the pickup is easy to reach.
Arma Dio is a Castlevania DLC character with the unique ability to choose any item at run start through the Arma Dio Selection menu. Parm Aegis was originally exclusive to this menu before being added to standard stage pools. Players who own the Castlevania DLC can still use Arma Dio to grab Parm Aegis instantly without traversing to the pickup location.
Parm Aegis is required for two evolutions, both from the Ode to Castlevania DLC. Discus + max Parm Aegis evolves into Stellar Blade. Iron Shield + any level Parm Aegis evolves into Dark Iron Shield. Both trigger from a treasure chest after the 10-minute mark.
Stellar Blade is the evolved form of the Discus weapon. It travels along walls and deals critical damage (3x multiplier) when the user is invulnerable, which is exactly what Parm Aegis enables. The weapon is a clear homage to Maxim Kischine's Stellar Sword from Castlevania: Harmony of Dissonance.
| Requirement | Detail |
|---|---|
| Base Weapon |  Discus at level 8 (max) |
| Passive Item | Parm Aegis at level 5 (max) |
| Trigger | Open a treasure chest after the 10-minute mark |
| Result | Discus removed; Stellar Blade added in same slot |
The Discus is the starting weapon of Maxim Kischine, making him the canonical character for the Stellar Blade evolution. Maxim is unlocked after defeating the Doppelganger boss (similar to other Castlevania boss unlocks) and reaching level 30 in Castlevania.
Dark Iron Shield is the evolved form of the Iron Shield, the starting weapon of 
Simon Belmont. Unlike the Stellar Blade evolution, this one only requires Parm Aegis at any level (it does NOT need to be max).
| Requirement | Detail |
|---|---|
| Base Weapon |  Iron Shield at level 8 (max) |
| Passive Item | Parm Aegis (any level) |
| Trigger | Boss chest after the 10-minute mark |
| Result | Iron Shield removed; Dark Iron Shield added |
Per the official wiki, the difference between max-level and any-level Parm Aegis evolutions reflects when the weapons were added. Stellar Blade (added with the Castlevania DLC) follows the post-v1.0 standard requiring max-level passive items. Dark Iron Shield uses the older flexibility rule.
Vampire Survivors' default i-frame window is short, so adding +250ms (a quarter-second) is meaningful. In a tight cluster where enemies hit every 0.3 seconds without Parm Aegis, full Parm Aegis effectively halves incoming damage by stretching the gap between hits.
Vampire Survivors enemies deal damage on contact, with the player triggering a default invulnerability window after each hit. The default window is short - typically around 100ms. Parm Aegis extends this window by up to +250ms, more than tripling the default duration at max level.
| Item | Defensive Effect | Stack with Parm Aegis? |
|---|---|---|
 Hollow Heart | +50% Max HP per level | Yes; provides health buffer |
 Pummarola | +0.2 HP regen per level | Yes; refills HP between hits |
 Armor | -1 incoming damage per level | Yes; reduces damage per hit |
 Laurel / Crimson Shroud | Damage shield (charges-based) | Yes; absorbs hits entirely |
The optimal defensive stack combines all four. Laurel/Crimson Shroud blocks first; Armor reduces what gets through; Hollow Heart provides a buffer; Pummarola refills the buffer; Parm Aegis extends the gap between successive hits. Each layer protects against a different damage scenario.
The 50ms-per-level granularity is intentional. Vampire Survivors runs at 60 frames per second, which means each frame is roughly 16.6ms. A single rank of Parm Aegis adds approximately 3 frames of invulnerability per hit. Five ranks add 15 frames, which is the equivalent of a full quarter-second buffer between successive hits in dense enemy clusters.
In practical terms, this means a player surrounded by 8 fast enemies who would normally take 8 hits in 1 second instead takes only 4 to 5 hits in that same window. The damage reduction compounds throughout long Endless Mode runs where total hits accumulate into the thousands.
Per the official wiki, the i-frame extension applies after the default invulnerability triggered by any source of damage. This includes contact damage from enemies, projectile damage from ranged attackers, and explosion damage from boss attacks. Parm Aegis does not protect against terrain hazards or chest spawn drops since those do not deal damage in the standard sense.
Maxim Kischine (Discus starter for Stellar Blade), Simon Belmont (Iron Shield starter for Dark Iron Shield), and any defense-oriented character benefit from Parm Aegis. Vlad Tepes Dracula and Arma Dio also pair well due to their Castlevania-themed builds.
| Character | Why It Pairs | Notes |
|---|---|---|
| Maxim Kischine | Starts with Discus | Default character for Stellar Blade evolution |
| Simon Belmont | Starts with Iron Shield | Default character for Dark Iron Shield evolution |
 Vlad Tepes Dracula | Castlevania-themed; benefits from defensive stacking | Strong baseline character; pairs with high Curse |
| Arma Dio | Can pick Parm Aegis at run start via selection menu | Useful for evolution-focused runs |
Once unlocked, Parm Aegis appears as a stage pickup on Ode to Castlevania (north of Giant Medusa Head, requires Stallion Gate), The Coop (free Emerald Diorama DLC), and Emerald Diorama. Picking it up off the ground saves a level-up roll.
| Stage | DLC Required | Pickup Notes |
|---|---|---|
| Ode to Castlevania | Castlevania (paid) | North of Giant Medusa Head; Stallion Gate required |
 The Coop | Emerald Diorama (free) | Standard stage pickup |
| Emerald Diorama | Emerald Diorama (free) | Standard stage pickup |
The Coop is the recommended unlock stage for players without the Castlevania DLC because it is a small contained map where the pickup is easy to reach within minutes. Per the official wiki, the Castlevania pickup did not exist initially and was added later when Parm Aegis was made fully unlockable through stage exploration.
Players new to Parm Aegis often misuse it in these ways:
Parm Aegis unlocks by collecting it on a stage. The three stage locations are Ode to Castlevania (north of Giant Medusa Head, requires Stallion Gate), The Coop (free Emerald Diorama DLC), and Emerald Diorama. Walk over the pickup once and Parm Aegis is permanently added to the level-up pool. The Coop is the easiest unlock for players without the Castlevania DLC.
Parm Aegis is required for two evolutions. Discus + Parm Aegis at max level evolves into Stellar Blade. Iron Shield + Parm Aegis at any level evolves into Dark Iron Shield. Both evolutions trigger from a treasure chest after the 10-minute mark in any stage that supports evolutions.
Parm Aegis has 5 levels. Each level adds +50ms (0.05 seconds) of invulnerability after taking damage. At maximum level, Parm Aegis grants +250ms (a quarter second) of additional i-frames per hit. The stacking is purely additive, so each level adds the same flat 50ms regardless of starting i-frame duration.
Parm Aegis is located in the dinner room inside the Art Gallery section, north of the Giant Medusa Head boss area. The pickup requires the Stallion Gate to be unlocked first. The Stallion Gate is a Castlevania map relic that controls access to the upper castle. Walk straight north from the Giant Medusa Head encounter to reach the dinner room. The same general approach works for other Castlevania boss areas.
Yes, on builds that need defensive scaling or plan to evolve Stellar Blade or Dark Iron Shield. On offense-heavy builds with Crimson Shroud already covering damage protection, Parm Aegis is lower priority. The i-frame extension is most valuable in Endless Mode runs and high-Curse builds where enemy density makes contact damage more frequent.
Yes. Armor reduces incoming damage by 1 per level (capped). Parm Aegis extends the invulnerability window between hits. The two stack additively as separate defensive layers. Combining them with Hollow Heart (HP buffer) and Pummarola (regen) creates the standard four-layer defensive stack used in most endgame builds.
Only after it has been unlocked. Per the official wiki, Parm Aegis cannot appear in level-up choices or chest rewards until it has been collected from a stage at least once. The first unlock requires walking to the pickup location physically. After the first collection, it appears normally in the standard level-up rotation.
Parm Aegis was added to the game in preview mode initially, only available through the Arma Dio character's selection menu. The item was made fully unlockable for all players when poncle added evolution paths (Stellar Blade, Dark Iron Shield) in subsequent patches, requiring a stage pickup option for non-Arma Dio players.
Two core Parm Aegis builds: Maxim Stellar Blade rush and Simon Dark Iron Shield setup. Maxim is the canonical evolution carrier; Simon Belmont pairs Iron Shield with Vampire Killer for the most defensive Castlevania build in the game.
The Maxim build centres on the Discus to Stellar Blade evolution. Stellar Blade only crits when the user is invulnerable, so stacking i-frame extension via Parm Aegis directly increases damage uptime.
| Slot | Item |
|---|---|
| Weapon 1 | Discus / Stellar Blade |
| Weapon 2 | King Bible / Unholy Vespers |
| Weapon 3 | Laurel / Crimson Shroud |
| Weapon 4 | Garlic / Soul Eater |
| Weapon 5 | Cross / Heaven Sword |
| Weapon 6 | Whip / Bloody Tear |
| Passive 1 | Parm Aegis (max) |
| Passive 2 | Hollow Heart |
| Passive 3 | Pummarola |
| Passive 4 | Spinach |
| Passive 5 | Spellbinder |
| Passive 6 | Empty Tome |
Simon Belmont starts with Iron Shield. The Dark Iron Shield evolution turns it into one of the most defensive weapons in the Castlevania DLC, blocking projectiles and reflecting damage. Parm Aegis adds the i-frame extension layer that lets Simon stand inside enemy clusters without taking compounding damage.
The Simon build pairs Iron Shield (Dark Iron Shield) with Vampire Killer (Bloody Tear evolution) and the standard defensive stack. Spellbinder is optional but useful for extending defensive durations across the build. The character is unlocked by surviving 12 minutes as Simon Belmont on any stage, which itself is straightforward thanks to the Iron Shield blocking pattern.
Parm Aegis is one of four primary defensive passives in the game. It complements rather than replaces Hollow Heart, Pummarola, and Armor. The four together form the standard endgame defensive package, where each item solves a different damage scenario.
| Defensive Item | Solves | Stack Priority |
|---|---|---|
| Parm Aegis | Repeated contact damage | High on Endless / Hyper runs |
| Hollow Heart | Insufficient HP buffer | Always max |
| Pummarola | No passive regeneration | Always max |
| Armor | Per-hit damage too high | Late-game evolutions |
| Laurel (Crimson Shroud) | Burst damage events | Mandatory for Reaper-killing |
Per the official wiki, the four-layer defensive stack reaches diminishing returns around level 80 of the player character. Once weapons reach max evolution and passives are fully levelled, additional defensive scaling provides minimal benefit compared to extending Cooldown or Might for damage scaling. Parm Aegis is therefore most valuable in the early-to-mid game and during specific challenge runs.
Parm Aegis mechanics, stage spawn locations, and evolution requirements cross-referenced against the official Vampire Survivors Wiki on Weirdgloop and the Vampire Survivors Fandom Wiki, including patch notes for the Stellar Blade and Dark Iron Shield evolution conditions.
Sprite assets and stat data derived from the Vampire Survivors Wiki, hosted by Weirdgloop and licensed under CC BY-NC-SA 3.0. Vampire Survivors is a trademark of poncle. This guide is an independent reference and is not affiliated with poncle.