Meltdown

Meltdown is a 4x4 Serpulo turret that charges and fires a persistent laser beam at nearby enemies and requires coolant to operate. It deals continuous piercing laser damage with incendiary properties and applies the Melting debuff for about eight seconds. Meltdown was introduced as one of the original 4x4 turrets and receives liquid coolant to fire; Cryofluid can be used as an alternative coolant to modify its firing behavior.

The turret's sustained damage is 936 DPS (distributed as 78 damage per tick at 12 ticks/sec). Its beam pierces and inflicts incendiary damage while also applying Melting for roughly 8 seconds. Meltdown consumes 1020 power per second while active and requires liquid coolant inputs to maintain firing (standard coolant and special fluids such as Cryofluid are supported; Cryofluid alters fire-rate behavior). It has the shortest range among the 4x4 turrets but damages everything along that range and has the highest health among the Serpulo turret family.

Design and balance history: recent updates increased build time and copper cost (build time raised from about 20.92s to 29.91s, and copper cost increased to 1200) and adjusted power usage and fire rate across versions; damage and range were adjusted in later builds and the laser was changed to inflict Melting for 8 seconds in a later patch.

Practical usage and interactions:

• Meltdown excels in close-quarters defense where its beam can hit multiple enemies along its short range; it is the most cost-effective Serpulo turret regarding materials and has high durability.
• Supply layout: feed Meltdown with coolant via existing liquid boost lines for other turrets or from a Liquid Container behind the turret line. If Cryofluid is supplied it modifies the firing characteristics (reduced fire rate values are associated with Cryofluid variants).
• Power budgeting: because Meltdown consumes a large amount of power while powered and able to fire, pair it with Batteries and Surge Towers where available; it will show a functional (green) status icon if it has power even without coolant, but it will still consume power while not firing if coolant is absent.
• Combos and debuffs: Melting significantly reduces enemy health and speed, and spraying Oil through Tsunami effects can increase damage against affected units. However, applying Oil or other incendiary effects removes Freezing/Wet effects, which prevents combining Meltdown’s Melting with Freezing-based combos.
• Strengths and weaknesses: strong against clustered and high-health enemy waves close to the turret line. Its short range makes it vulnerable to long-range snipers such as Fortress and Minke; high-health units like Antumbra and Quad can survive a single blast and destroy the turret before it fires again unless the turret is supported by healing (Repair Turret or Vela) or other defenses.
• Construction notes: Meltdown is a block that requires both power and liquids; integrate it into turret lines where liquid logistics are already present to minimize extra infrastructure cost.

Trivia: Meltdown’s name follows a theme for the 4x4 Serpulo turrets, being named after the Meltdown CPU vulnerability. If the display option for block status is active, Meltdown may display as functional when it has power even if it lacks coolant.