Into the Breach Codexery

Attack

One action, one strike—every breach begins with a single hit.

Attack is the foundational combat action in Into the Breach, the turn-based tactics game by Subset Games. Every mech—whether the nimble Mantis, the armored Beetle, the darting Wasp, or the long-reach Stag—relies on Attack as its primary means of dealing damage to Breachers and, in later stages, to rival mechs. It is the single most frequently used action in the game and the one players learn to optimize above all others.

In a game where each turn allows a mech to perform one move and one action, Attack occupies that precious action slot. Choosing when, where, and whom to strike shapes the entire tactical flow of a mission, from early Breacher suppression to the high-stakes Breach events that define the game's escalating difficulty.

Type
Core action (one per turn per mech)
Available to
All mechs (Mantis, Beetle, Wasp, Stag, and others)
Range
Varies by mech (1 to 3 tiles)
Effect
Deals a fixed damage value to the target
Targets
Breachers; in some modes, enemy mechs
Special variants
Splash, Piercing, and other modifiers per mech

Lore & Background

In the shattered world beyond the Breach, mechs are humanity's last line of defense against the relentless flood of Breachers pouring through dimensional rifts. The Attack action is not merely a button press; it represents the focused, deliberate violence of a war machine channeling its full output into a single devastating blow. Pilots speak of the 'clean hit'—a strike that lands exactly where the targeting computer promised, shattering a Breacher's carapace or slicing through its segmented body in one flash of superheated alloy.

Each mech's Attack reflects its role in the squad. The Mantis delivers rapid, close-range slashes that can catch multiple foes in a single sweep. The Beetle's heavy hammer-like strike is slow but devastating up close. The Wasp fires concentrated energy bolts from a distance, while the Stag's long-range cannon can snipe threats before they close. These differences are not cosmetic; they define the geometry of every engagement and force pilots to think in terms of tile-distance, line of sight, and turn order.

Veteran pilots describe the rhythm of Attack as a kind of breathing: inhale with movement, exhale with the strike. In a game where a single misplaced attack can cascade into a lost mech and a collapsed front, that breath must be measured, patient, and precise.

In Their Own Story

The Mantis pilot felt the Breacher's mandibles snap shut on empty air a half-second too late. She rolled the turret, tracked the segmented body as it twisted, and fired. The slash carved a clean line through its thorax, and the creature shuddered, split, and dissolved into grey ash that drifted across the cracked tile. Two more Breachers were already advancing from the Breach mouth, their chitinous legs clicking against the concrete. She had one action left. She chose to move, not to strike. Sometimes the best attack is the one you don't take yet.

Reader's Guide

Attack is your primary damage action, and its value is defined by range, damage output, and any special modifier your mech carries. Melee mechs like the Mantis and Beetle operate at 1 tile, meaning you must close distance before striking. Ranged mechs like the Wasp (2 tiles) and Stag (3 tiles) can engage before enemies reach them, making them natural backline support.

Range calculation is simple: count orthogonal and diagonal tiles between your mech and the target. If the target is within your Attack range, you can hit it. Terrain does not block line of sight in Into the Breach, but it does constrain movement, so a Breacher trapped behind a wall may still be in range while being unreachable by melee units.

Synergy is where Attack shines. A melee mech can bait a Breacher into a corner while a ranged mech picks it off from safety. Splash attacks (like the Mantis's) punish clustered Breachers, making them ideal for Breach-event swarms. If a Breacher is at 1 HP and you have a splash attack, striking it can eliminate two threats in one action. Coordinate with your squad: one mech draws aggro, the other delivers the killing blow. This 'lure-and-pick' loop is the backbone of most efficient runs.

Did You Know?

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