Star Savior Corridor and Cube Palace Guide
Corridor and Cube Palace are two core progression modes in Star Savior. Corridor tests your roster depth and attribute coverage across 850 total floors, while Cube Palace works as the daily roguelike mode for farming skill materials. Here's the complete breakdown of both modes, including battle power thresholds, floor requirements, and reward systems.
- 850 Total Tower Floors: Conquer the 250-floor unrestricted Interstellar Corridor plus three 200-floor elemental towers (Sun, Moon, Star) for massive Stellagems and Guidance Stones.
- Strict Attribute Requirements: Elemental Corridors require mono-attribute teams (Sun, Moon, Star); build balanced rosters across all three alignments to prevent progress walls.
- 5-Step Roguelike Ladder: Cube Palace features 5 escalating Steps (Interface, Kernel, Assembler, Firmware, Mechanics), each containing 5 waves of tactical combat.
- Zero-Risk Retry System: Entry tickets are only consumed upon claiming rewards; enjoy unlimited free retries and partial-clear payouts to optimize skill cube income.
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Corridor Mode Overview
Corridor is a permanent multi-tower challenge system consisting of 850 total floors split across four distinct towers. Each floor provides valuable first-clear resources, including Stellagems, Gold, and tower-specific Guidance Stones used for account growth.
| Tower System Feature | Parameter / Metric | Tactical Function & Account Impact |
|---|---|---|
| Total Floor Volume | 850 Total Floors | Permanent account-wide resource ladder that never resets. |
| Tower Division | 1 Main + 3 Elemental Towers | Main tower is open to all units; elemental towers enforce mono-attribute squads. |
| First-Clear Currency | 30 Stellagems + 3,000 Gold | Awarded per floor cleared; totals over 25,500 Stellagems across all towers. |
| Guidance Stones Yield | 5 Guidance Stones per floor | Invested into the Sanctuary to permanently raise account-wide savior combat stats. |
Corridor Towers and Battle Power Requirements
Each Corridor tower features distinct squad composition rules and escalating Battle Power (BP) thresholds:
Interstellar Corridor (Main Tower)
- Total Floors: 250 Floors
- Battle Power (BP) Range: 4,775 – 243,320 BP
- Squad Requirement: Unrestricted (Bring any 4 Saviors)
- First-Clear Floor Rewards: 30 Stellagems, 3,000 Gold, and 5 Planetary Guidance Stones per floor
Sun Corridor (Elemental Tower)
- Total Floors: 200 Floors
- Battle Power (BP) Range: 11,750 – 139,160 BP
- Squad Requirement: Sun Attribute Saviors Only
- First-Clear Floor Rewards: 30 Stellagems, 3,000 Gold, and 5 Sun Guidance Stones per floor
Moon Corridor (Elemental Tower)
- Total Floors: 200 Floors
- Battle Power (BP) Range: 11,750 – 139,160 BP
- Squad Requirement: Moon Attribute Saviors Only
- First-Clear Floor Rewards: 30 Stellagems, 3,000 Gold, and 5 Moon Guidance Stones per floor
Star Corridor (Elemental Tower)
- Total Floors: 200 Floors
- Battle Power (BP) Range: 11,750 – 139,160 BP
- Squad Requirement: Star Attribute Saviors Only
- First-Clear Floor Rewards: 30 Stellagems, 3,000 Gold, and 5 Star Guidance Stones per floor
Tactical Tip: Build at least one strong core team for each attribute (Sun, Moon, and Star) to avoid hitting hard progression walls in the elemental towers.
| Corridor Tower | Total Floors | Battle Power (BP) Range | Squad Requirement | First-Clear Rewards / Floor |
|---|---|---|---|---|
| Interstellar Corridor | 250 Floors | 4,775 – 243,320 BP | Unrestricted (Any 4 Saviors) | 30 Stellagems, 3,000 Gold, 5 Planetary Guidance Stones |
| Sun Corridor | 200 Floors | 11,750 – 139,160 BP | Sun Attribute Saviors Only | 30 Stellagems, 3,000 Gold, 5 Sun Guidance Stones |
| Moon Corridor | 200 Floors | 11,750 – 139,160 BP | Moon Attribute Saviors Only | 30 Stellagems, 3,000 Gold, 5 Moon Guidance Stones |
| Star Corridor | 200 Floors | 11,750 – 139,160 BP | Star Attribute Saviors Only | 30 Stellagems, 3,000 Gold, 5 Star Guidance Stones |
Cube Palace Overview
Cube Palace is a daily roguelike mode designed to test wave-clearing endurance. Your progression carries over daily, letting you steadily climb deeper into higher tiers.
- Level Structure: The mode is divided into 5 Steps (Levels):
- Wave Count: Each Step contains 5 waves that must be cleared to advance to the next stage.
- Step 001: Interface
- Step 002: Kernel
- Step 003: Assembler
- Step 004: Firmware
- Step 005: Mechanics
| Step Designation | Step Name | Wave Structure | Progression Difficulty | Core Encounter Focus |
|---|---|---|---|---|
| Step 001 | Interface | 5 Waves | Introductory | Basic mob clearing and early buff accumulation |
| Step 002 | Kernel | 5 Waves | Moderate | Elite wave combinations and Toughness Break checks |
| Step 003 | Assembler | 5 Waves | Advanced | Multi-target AoE pressure and Action Gauge timing |
| Step 004 | Firmware | 5 Waves | Expert | High-durability encounters requiring sustained DPS |
| Step 005 | Mechanics | 5 Waves | Master / Endgame | Pinnacle wave endurance test for maximum Skill Cube rewards |
Entry Ticket and Retry Mechanics
Cube Palace features player-friendly retry rules so you never waste entry resources:
- Ticket Consumption: Your Entry Ticket is only consumed after you manually claim your rewards.
- Partial Clear Rewards: If you fail during a run, you don't leave empty-handed. You can choose to claim rewards based on the waves you successfully cleared.
- Unlimited Retries: If a run doesn't go smoothly or you miss a wave clear, you can retry the run right away without penalty.
| Mechanic | Operational Rule | Player Advantage | Strategic Recommendation |
|---|---|---|---|
| Ticket Consumption | Deducted only upon claiming rewards | Zero ticket loss on failed attempts | Never claim rewards early if you can optimize your clear. |
| Unlimited Retries | Instant restart with 0 cost or cooldown | Free trial-and-error for optimal buff synergy | Restart immediately if high-threat units die early in a wave. |
| Partial Clear Rewards | Payout scales to highest cleared wave | Guarantees resource income even on wipeouts | Claim partial rewards only if daily reset is imminent. |
Cube Palace Rewards and Progression
Every run in Cube Palace awards two critical progression items:
- Cheat Code Currency: Earned during your runs to buy permanent and active buffs in the Cheat Code shop, making subsequent runs much easier.
- Skill Cubes: The primary resource used to upgrade your Savior Skill levels, directly boosting your overall team combat power.
| Reward Item | Acquisition Method | Primary Application | Progression Priority |
|---|---|---|---|
| Cheat Code Currency | Earned per wave and Step completion | Purchases active and passive buffs in Cheat Code shop | Essential for clearing Steps 004 (Firmware) and 005 (Mechanics). |
| Skill Cubes | Primary reward from daily Cube Palace runs | Upgrades Savior skill levels (S1, S2, S3) | Mandatory Daily — Directly increases combat power and skill multipliers. |
Frequently Asked Questions
Does my Cube Palace progress reset every day? +
No. Cube Palace features persistent daily progression, letting you resume climbing deeper into higher Steps (Step 001 through Step 005) rather than starting from the very beginning each day.
When is an Entry Ticket consumed in Cube Palace? +
Your ticket is only consumed once you manually claim your rewards. If your run goes poorly or a teammate is eliminated, you can restart as many times as you like without losing your ticket.
What are Guidance Stones used for in Corridor Mode? +
First-clearing floors in the Interstellar, Sun, Moon, and Star Corridors awards Planetary, Sun, Moon, and Star Guidance Stones. These are invested into the Sanctuary facility to unlock permanent account-wide stat bonuses for your Saviors.
How should I prepare for the elemental Corridor towers? +
Unlike the unrestricted 250-floor Interstellar Corridor, the Sun, Moon, and Star Corridors strictly restrict your squad to that specific attribute. Build at least one durable tank, healer, and carry for each element to prevent getting stuck.
