Legendary Weapon List

Legendaries are produced by merging two level-20 non-legendary weapons. Each of the 4 base damage tags (bullet, bomb, energy, fire) pairs with every other tag, including itself, yielding exactly 10 unordered tag pairings — one legendary per pairing. Every legendary starts at level 1 and scales 1 to 20 through the normal level-up pool.

The four same-tag merges produce the “pure” legendaries; the six cross-tag merges produce hybrid legendaries that carry a primary and secondary damage tag.

Same-tag legendaries (4)

Pair	Legendary	Weapon ID	Behavior
bullet + bullet	Mega Bullet	lgd_autocannon	Slow brass FAMAS-style 3-round bursts; pierces every enemy in line, continues off-screen
bomb + bomb	Hellrain	lgd_blackhole_cluster	Off-screen artillery rain; telegraphed bombs fall on Y axis with ±50% rate jitter
energy + energy	Star Halo	lgd_railstorm	Stars stream into a spinning ring (3 revolutions), then burst radially outward and detonate
fire + fire	Phoenix	lgd_inferno	Continuous 360° fire-damage aura around the ship with a phoenix outline behind the player

Cross-tag legendaries (6)

Pair	Legendary	Weapon ID	Primary / Secondary Tag	Behavior
bomb + bullet	4-Way Burst	lgd_flak_rifle	bullet / bomb	4 simultaneous hitscan beams ≥30° apart, each detonates a blast on impact
bullet + energy	Wave Gun	lgd_railslug	bullet / energy	Machine-gun fires curved blue plasma arcs, each arc pierces every enemy in its line
bullet + fire	Trailblazer	lgd_incendiary_rifle	bullet / fire	High-RoF rounds in a wide cone leave persistent fire-trail damage zones
bomb + energy	Railstorm	lgd_plasma_launcher	bomb / energy	Anime beam-trace flash; beam sprite persists ~2s with cascading explosions along its path
bomb + fire	Carpet Bomber	lgd_napalm_mortar	bomb / fire	Screen-pinned bombers fly across viewport dropping firebombs in vertical lines
energy + fire	Plasma Mortar	lgd_arc_flame	energy / fire	Lobs slow blue-plasma balls on a high arc; impact leaves a persistent blue-fire energy-tick zone

Pairing matrix

Each cell shows the legendary produced by merging the row tag with the column tag. The matrix is symmetric (unordered pairs).

	bomb	bullet	energy	fire
bomb	Hellrain	4-Way Burst	Railstorm	Carpet Bomber
bullet	4-Way Burst	Mega Bullet	Wave Gun	Trailblazer
energy	Railstorm	Wave Gun	Star Halo	Plasma Mortar
fire	Carpet Bomber	Trailblazer	Plasma Mortar	Phoenix

Key facts

• 10 legendaries total = C(4,2) + 4 = 6 cross-tag + 4 same-tag.
• All legendaries are linear-scaling, 1 to 20, with isLegendary: true and a mergeParents tag pair.
• VFX scale: all spatial parameters (acquireRange, travelRangeMult, projectileSize, blastRadius, beamWidth, chainRadius, scatterRadius, coneWidth) are 5x versus their base-weapon counterparts. Pulse/glow values also 5x. postFxSec 2x only (screen flash capped to avoid nausea).
• Same-tag merges set damageTag === secondaryDamageTag; cross-tag merges carry distinct primary and secondary damage tags.
• Pair lookup is canonicalized via pairKey(a, b) (alphabetical sort: bomb < bullet < energy < fire); LEGENDARY_PAIR_MAP resolves any unordered pair to its weaponId.
• Canonical source: starship-survivors/src/starship-survivors/data/weapons/legendaries.ts.