9 Kings: Level 1 Converter Station Attack Speed Build Guide

In 9 Kings, the most effective way to scale the Converter Station is to leave it at Level 1 and dedicate your drafting resources entirely to attack speed perks, cooldown reduction, and adjacent aura buildings. Because the Converter Station lacks an internal firing speed cap, its damage output increases exponentially through hit volume rather than the marginal base damage gained from rank upgrades.

Freezing the building at Level 1 eliminates the need to buy duplicate cards, freeing your gold and draft slots for economy engines, utility passives, and high-tier attack speed modifiers.

Why Leave Converter Station at Level 1?

Upgrading the Converter Station to Level 2 or Level 3 yields poor returns compared to other structures. Standard card upgrades primarily increase flat base damage and building health, but the Converter Station's value comes from hit frequency. Multiplicative attack speed bonuses quickly outscale flat damage stats, meaning gold spent on duplicate cards offers negligible late-game impact.

Skipping rank upgrades also protects your run economy:

Preserved Draft Slots: You do not need to hunt for duplicate Converter Station cards during shop phases, leaving slots open for relics and utility buffs.
Gold Efficiency: Gold normally spent on card merging can instead fund shop rerolls, kingdom expansions, or passive gold generators.
Scalable Damage: External attack speed modifiers scale the building's output across every stage of the run without requiring additional building investment.

Perk and Modifier Priorities

To reach continuous beam-like firing rates, prioritize modifiers that compress the structure's attack intervals and capitalize on high hit counts.

Priority Tier	Stat / Modifier Focus	Tactical Role
Top Priority	Global Attack Speed Buffs	Directly lowers firing delay to reach peak attack cadence.
High Priority	Cooldown Reduction	Shortens internal delays between firing bursts.
Medium Priority	On-Hit / Critical Multipliers	Multiplies the value of rapid hits across high-health targets.
Low Priority	Flat Attack Power	Adds minimal total damage compared to exponential speed buffs.

Because the building registers hits rapidly, secondary on-hit perks and critical strike bonuses trigger frequently, shredding both armored single targets and heavy wave clusters.

Grid Placement and Adjacency Buffs

The Converter Station requires protection from direct melee engagement while maintaining clear line-of-sight and direct contact with buff-sharing structures.

Organize your board across three distinct rows:

Frontline (Row 1): Place barricades, durable walls, or melee units to absorb enemy charges and stall incoming waves.
Midline (Row 2): Place the Converter Station flanked directly by support buildings such as Beacons. Beacons broadcast directional attack speed bonuses to neighboring tiles, compounding the tower's base firing rate.
Backline (Row 3): House utility buildings, shrines, and economy engines safely away from the frontline.

Placing the Converter Station in the second row ensures it receives overlapping adjacency buffs while staying safe from melee breaches. If an enemy breaks through the front wall, the tower's rapid fire rate provides immediate close-range defense.

Economy and Wave Tactics

Relying on a single Level 1 offensive carry simplifies your drafting and wave management:

Keep Your Deck Lean: Skip low-impact attack units and draft economy structures like Shrines. A smaller deck increases the frequency of drawing critical support cards and rerolling for rare speed perks.
Control Wave Flow: The Converter Station fires along single lines. Use minor slow effects or frontline bottlenecks to channel wide enemy formations into its direct line of fire to prevent leaks.
Boss King Strategy: Endgame Boss Kings possess large health pools that outlast standard siege towers. As long as your frontline barriers hold for the opening seconds of a boss encounter, the Converter Station's accumulated attack speed will melt the boss's health pool before it breaches your defenses.