INTO THE BREACH · PC / ADVANCED EDITION

Choosing weapons, Reactor Cores and upgrades

Covers starting damage and upgrade costs for Rift Walkers and Cataclysm, equipment classes, Buildings Immune, KO effects and uses. Explains what to check before buying and how to read Test Mech, including push destinations.

Scope: PC Advanced Edition (additional content ON; mechanics based on the official 1.2.88 update announcement) / Content checked: October 2, 2026

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Checks before buying new equipment

List specific targets your current three mechs cannot reach. Separate gaps such as distant enemies, adjacent enemies, enemies beside buildings or immovable enemies.
Check equipment class and required power. Off-class equipment may need extra power.
Look beyond damage to push direction, range, protection for allies and buildings, and uses. Consider whether you can save a limited-use weapon until the turn that needs it.
Use Test Mech to check impact tiles, piercing paths, recoil, self-damage and push destinations. Decide the user and core allocation before leaving the shop.

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Rift Walkers: starting equipment values and upgrade costs

Equipment	Starting value	Upgrade	Required cores
Titan Fist	2 damage; pushes the target	Dash	2
Titan Fist	Same as above	+2 Damage	3
Taurus Cannon	1 damage; direct shot and push	+1 Damage (first slot)	2
Taurus Cannon	Same as above	+1 Damage (second slot)	Withheld because sources give different costs
Artemis Artillery	1 damage at impact; pushes adjacent tiles	Buildings Immune	1
Artemis Artillery	Same as above	+2 Damage	3

Upgrade slots do not have to be used in sequence. You can allocate the required power to the slot you want first. You do not have to pay 2 cores for Dash before proceeding to +2 Damage.
The referenced in-game screen and another source disagree on the cost of Taurus Cannon's second slot. Check the equipment screen in your own PC version.

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Rift Walkers: examples of what upgrades change

Situation	Normal action	Choice after upgrading
Unarmored 3-HP enemy with a collision target behind it	Combine Titan Fist's 2 damage with a normal 1-damage collision	Another mech can handle a different threat. Avoid this if the collision target is a building.
Unarmored 2-HP enemy with empty ground behind it	Taurus's 1 damage alone cannot kill it	With +1 Damage active, it can kill directly. Also check required power and enemy support effects.
You want to aim at a building to push an adjacent enemy	Artemis's impact damages the building	With Buildings Immune active, the building can be the impact tile.
You want to fire artillery beside an escort target	Read the preview, including the target's HP	Do not assume Buildings Immune alone protects ordinary units.

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Cataclysm [AE]: terrain-creating equipment and costs

Equipment	Starting value	Upgrade	Required cores
Hydraulic Lifter	1 damage; throws an adjacent target	+2 Range	1
Hydraulic Lifter	Same as above	+2 Damage	Withheld because sources give different costs
Tri-Rocket	1 damage; attacks and pushes three tiles	+1 Damage	3
Tri-Rocket	Same as above	Buildings Immune	1
Seismic Capacitor	1 damage, attack reversal and cracks around a KO	+1 Damage (first slot)	1
Seismic Capacitor	Same as above	+1 Damage (second slot)	3

For KO-based terrain creation, check whether Capacitor's own attack removes the last HP, rather than only total damage. Pushing a flying enemy over a chasm does not kill it.
No fixed damage-upgrade cost is provided for Hydraulic Lifter because the referenced in-game screen and another source disagree.

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Choose secondary equipment by weapon effect

Tool needed	Effect to check	Weak situation
Reach a distant position	Artillery, long range or remote pushing	Some equipment cannot target adjacent units.
Move an enemy beside a building	Pulling, reversal or swapping	Fixed or immovable targets require another solution.
Stop several attacks	Wide pushes, smoke or freezing	Check whether allies or mission objectives are also affected.
Kill a high-HP enemy	Damage, A.C.I.D. or friendly-fire support	Even enough damage leaves a defensive task unresolved if you cannot reach another enemy with an attack preview.
Absorb an attack you cannot prevent	Shield or other defense	The enemy remains, so prepare a solution for the next turn.
Extra effects on a KO [AE]	Arachnoid generation, cracks and similar effects	No KO effect occurs if that attack cannot kill the target.

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Reassess Reactor Core allocation

Secure power for the weapons you need first. Some pilots' unique abilities also require power.
Check whether a damage upgrade lets one mech kill more enemies. Compare it with current enemy HP, including A.C.I.D. and collisions.
If building protection, range or movement lets you reach new tiles, consider that upgrade too.
Between islands or before deployment, switch unnecessary upgrades OFF to free power for another use within the same mech. Recalculate HP for self-damaging weapons too.

This page is not an encyclopedia of every weapon. See the squad page for the starting roles of 39 mechs. A complete damage and cost list for other weapons awaits cross-checking and is planned for later.

Starting roles of 39 mechs →Ability power requirements →Island shops →

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