SD Gundam G Generation ETERNAL: South Tower Floors 11–15 Guide

To clear Floors 11 through 15 of the South Tower in SD Gundam G Generation ETERNAL, deploy a balanced five-unit squad built around a dedicated tank, split damage types, and sustain. Brute-forcing this tier with fragile offensive units results in rapid squad losses. Success requires drawing out dangerous enemies one by one, deploying the correct damage profile against polarized defenses, and conserving energy (EN) for elite threats and the final boss.

Recommended Squad Composition

Upper South Tower stages feature polarized defenses, including heavy armor and anti-beam coatings. Running exclusively beam or physical attackers will stall your damage output. Build your team with distinct tactical roles to handle mixed enemy waves.

Role	Tactical Function	Priority Attributes
Frontline Tank	Absorbs initial aggro and blocks approach lanes	High DEF, shield block, defensive passives
Physical Striker	Bypasses anti-beam coatings and eliminates high-mobility targets	High Melee/Physical ATK, burst mobility
Beam Artillery	Snipes high-value backline units from outside enemy range	Range 4+ beam weapons, high hit rate
Tactical Support	Restores squad HP, cleanses debuffs, and provides team buffs	Repair skills, stat buffs, safe mobility

Floors 11 and 12: Defensive Lines and Armor Cracking

The first two floors test your ability to withstand early positioning traps and pierce reinforced bulk.

Floor 11: The enemy team starts in positions designed to flank your spawn point. Do not advance aggressively on Turn 1. Form a tight perimeter and keep your damage dealers just behind your tank, outside hostile attack markers. Let the enemy vanguard close the distance, then use focused single-target attacks to eliminate units one at a time. Spreading chip damage leaves enemies alive to execute lethal counterattacks.
Floor 12: Enemies on this floor feature elevated defense stats that reduce basic attacks to negligible chip damage. Open attack chains with defense-reducing debuffs or armor-piercing armaments before firing your main weapons. Keep your tank anchored between enemy brawlers and your ranged units, using defensive terrain to blunt counterattack damage.

Floors 13 and 14: Burst Vanguards and Artillery Flanks

Floors 13 and 14 punish poor spacing. Inspect enemy movement and attack ranges before selecting any unit destination.

Floor 13: Hostile vanguards on this floor carry high-damage burst armaments capable of eliminating fragile attackers in a single exchange. Position your frontline tank on the very edge of a single enemy's attack range while keeping the rest of your squad safely out of reach. After the enemy exhausts its action against your fortified tank, collapse your physical and beam attackers onto the exposed target.
Floor 14: High-damage artillery units control the central corridors. Marching straight down the middle exposes your squad to heavy bombardment. Advance along the outer lanes using available terrain cover. Send high-mobility strike units around the flanks to engage the artillery in close quarters, neutralizing their range advantage where their defenses are weakest.

Floor 15: Boss Strategy and Add Management

Floor 15 pairs a durable boss unit with persistent escort units that provide cover fire and defensive buffs. Rushing the boss immediately leads to failure because escort crossfire will wear down your frontline.

Isolate the boss: Move your tank to hold the boss's attention near the outer boundary while keeping your remaining units out of the boss's primary firing arc.
Clear the escorts: Focus all available physical and beam attacks on the supporting escort units. Eliminate them completely before committing resources to the boss.
Set up the burst window: Once the escorts fall, coordinate your attack buffs, critical rate bonuses, and defense debuffs in a single turn.
Execute Special Attacks: Unleash your pilot Special Attacks and EX skills consecutively while all debuffs are active. Ensure your tank is positioned to shield any attacker that remains vulnerable to counterattacks if the boss survives the burst phase.

Resource Discipline and Counterattack Forecasts

Prolonged tower stages fail most frequently from resource depletion and unchecked counterattacks.

Manage EN Reserves: Do not burn high-cost EX skills or powerful armaments to finish off low-HP grunts. Use basic, low-cost attacks to secure final blows, saving high-potency attacks and pilot SP for elite units and the Floor 15 boss. Always confirm a unit has sufficient EN remaining to retaliate during the enemy phase before ending its turn in an active lane.
Inspect Combat Forecasts: Always evaluate projected return damage before committing to an attack. If a forecast indicates severe counterattack damage, adjust your firing range, reposition to an angle the target cannot retaliate against, or select a defensive stance instead of forcing an unfavorable trade.