The floating home base that quietly feeds every weapon you fire. Forty grades of hull, twenty reform stars, four turret slots and eighteen training lines — every level, every cost, straight from the config tables.
The Mothership (unlocked at campaign stage 12) is a permanent stat platform: its own contribution terms sit inside every weapon's attack formula and your HP formula — (atk#tgt50 + atk#tgt51)·(1 + atkP#tgt50 + atkP#tgt51) — so everything on this page multiplies your whole sheet, in every mode. Mid-run it's also the Docking event: your fighter lands on it to heal and re-draft (see Combat).
Leveling is paid in Mothership Pieces ("precision parts made by the Titans" — the loc's own lore) at every level, plus Power Engines at each level-10 grade-up. Costs climb from 15 Pieces at Grade 1 to 3,988 at Grade 40; the full run to max costs Pieces and Power Engines.
The payoff is flat Attack and HP that ends at +19,600 attack / +78,400 HP — before the reform multiplier below. Grade-ups also gate other systems (mothership_unlock): trainings open at hull level 11, reform at 21, more turret slots at 31 and 41.
Reform ("modification") stars are bought with Mothership Cores ("contains the full Titan energy core") — a linear ramp of 1 core at ★1 up to 20 at ★20, 210 cores total, plus 100 Stars each. Each star adds +1% attack and +1% HP to everything the Mothership grants (a multiplier on the whole hull + training stack, up to +20%), and most stars also expand a training line's session cap by +10.
Four turret slots (Mothership Maingun → your maingun attack, Offshore Quick-Firer → winggun, Anti-Submarine Torpedo → missile, Aegis Anti-Air Radar → HP), each with six grade tiers (white → red). A turret levels 1→200 by feeding Turret Pieces (white 10 EXP → red 2,000 EXP); duplicates auto-convert to pieces. Total EXP to take one turret to 200 ranges from ~91k (Grade 1) to ~447k (Grade 6).
One column per grade tier; the value is the flat stat the slot grants at that level (Radar rows are HP, the rest attack).
Each training session consumes one Training item (dropped by Hyper Battlefield rankings, the Battlefield Shop — and the Titan Shop, which sells the same chests). Sessions stack a tiny fixed bonus up to a hard cap. The caps are worth reading twice: maxed Air Training is +40% attack on every weapon line, and maxed Joint Training is +10–20% across dodge/hit/crit lines.
From the attribute algebra: the Mothership term added to each weapon attack is
…where tgt50 = hull levels + Land/Maritime trainings (flat) and reform stars (%), and tgt51_emitX = the slot turret (flat) + Air training (%). A maxed Mothership contributes roughly (19,600 + 12,000 + 6,000 + 20,000) × 1.60 attack to a single weapon line before anything else multiplies it.
Sources: mothership_levels, mothership_reform, mothership_train, mothership_equip_base/levels, mothership_equip_material_def, mothership_unlock + the English loc table. Mothership Pieces/Cores/Engines drop from the Lost Battlefield idle chapter and packs.