passives

What it is

Each ship type owns exactly one passive ability that is always active during a run. The passive’s strength scales with the ship’s rarity tier: every passive defines five fixed magnitudes, one per tier (common, uncommon, rare, epic, legendary). Passives apply once at run start and persist for the entire run.

Stats / tables

Rarity tier index

Tier	Index
common	0
uncommon	1
rare	2
epic	3
legendary	4

Full passive catalog

Passive	Effect	Stat modified	Unit	Common	Uncommon	Rare	Epic	Legendary
Afterburner	Increases movement speed	maxSpeed	%	5	10	16	23	32
Fortune Core	Increases luck	luck	flat	3	6	10	15	22
Heavy Plating	Increases max HP	hpMax	%	5	10	16	23	32
Jack of All Trades	Increases all stats	all	%	3	6	10	15	22
Organic Regeneration	Increases shield regen rate	shieldRegenRate	%	5	10	16	23	32
Payload Delivery	Increases fire rate	fireRatePct	flat	4	8	13	19	28
Phase Drive	Increases acceleration	thrust	%	5	10	16	23	32
Precision Salvage	Increases currency drops	currencyBonus	flat	3	6	10	15	22
Predator Instinct	Increases weapon damage	weaponDamagePct	flat	4	8	13	19	28
Prismatic Agility	Increases turn speed	turnSpeed	%	5	10	16	23	32
Ram Prow	Increases ramming damage	meleeMult	%	8	15	24	35	50
Reinforced Hull	Increases damage reduction	damageReduction	flat	1	2	3	5	7
Shield Capacitor	Increases max shield	shieldMax	%	5	10	16	23	32
Thermal Vents	Increases heat cooldown	overheatCool	%	5	10	16	23	32
Tractor Array	Increases magnet range	magnetRange	%	8	15	24	35	50
Void Siphon	Restores HP per second	hpRegen	flat	0.5	1	1.5	2.5	4

Magnitude curve groups

Passives share scaling curves grouped by stat impact.

Curve	Common	Uncommon	Rare	Epic	Legendary	Members
Standard percent	5	10	16	23	32	Afterburner, Heavy Plating, Organic Regeneration, Phase Drive, Prismatic Agility, Shield Capacitor, Thermal Vents
Damage / fire rate percent	4	8	13	19	28	Payload Delivery, Predator Instinct
Economy / luck / multistat percent	3	6	10	15	22	Fortune Core, Jack of All Trades, Precision Salvage
Wide percent	8	15	24	35	50	Ram Prow, Tractor Array
Damage reduction flat	1	2	3	5	7	Reinforced Hull
HP regen flat	0.5	1	1.5	2.5	4	Void Siphon

How it works

Each passive is a data record with these fields:

Field	Purpose
id	Unique identifier referenced by ships
name	Display name
description	Text template containing the placeholder {value}
stat	The combat stat the passive modifies
isPercent	Whether the magnitude is a percentage or a flat value
values	Five magnitudes, indexed by rarity
effects	Optional triggered effects registered with the effect engine

A ship definition stores a passiveId string pointing at a record in the passive registry. At run start, the ship’s rarity selects one index in the passive’s values array, and that magnitude is applied as a stat modifier for the entire run. The passive’s description is rendered by substituting {value} with the rarity-resolved magnitude.

Passives are looked up by id; an unknown id throws an error. The trigger condition for every passive is the same: presence on the active ship during a run. There is no toggle, cooldown, charge, or proc condition.

Interactions

Passive	Interacts with
Afterburner	Movement / dodge timing
Fortune Core	Drop tables and any luck-gated rolls
Heavy Plating	HP pool used by damage and healing calculations
Jack of All Trades	Every stat that other passives also modify (stacks additively as a flat percent)
Organic Regeneration	Shield regeneration tick rate
Payload Delivery	Weapon fire-rate cadence
Phase Drive	Thrust used to reach max speed
Precision Salvage	Currency drop quantity
Predator Instinct	Outgoing weapon damage on hit
Prismatic Agility	Turn rate used during steering
Ram Prow	Damage dealt to enemies on collision
Reinforced Hull	Flat subtraction from incoming damage
Shield Capacitor	Shield pool absorbing damage before HP
Thermal Vents	Overheat cooldown timer
Tractor Array	Pickup magnet radius
Void Siphon	Continuous HP regeneration regardless of shield state

What it does NOT do

• Passives do not stack across multiple ships in a run; only the active ship’s passive is applied.
• Passives do not change rarity mid-run; the magnitude is fixed at run start by the ship’s rarity tier.
• Passives do not trigger on events (kills, hits, low HP, level-ups); they are always-on stat modifiers unless an optional effects block is defined.
• Passives do not affect other ships, allies, or summons; they modify the player ship only.
• Passives do not roll random magnitudes; each rarity tier maps to one fixed value.
• Passives do not unlock by progression; access depends solely on which ship is selected.
• A passive value cannot exceed the legendary-tier value listed above.