Catch a Monster Endless Spire Guide 2025: Tower Floors, Rewards & Climbing Strategy

The Endless Spire Tower represents the ultimate endgame challenge in Catch a Monster. Added in the December 2025 update, this towering gauntlet tests your monsters against increasingly difficult floors, offering exclusive rewards that can't be obtained anywhere else. If you're ready to push your team to the limit, this comprehensive guide will teach you everything about the Endless Spire.

What is the Endless Spire Tower?

The Endless Spire is a roguelike tower challenge where players climb through sequential floors, each containing progressively harder monsters. Unlike the open-world areas of the game, the Spire is a focused, wave-based combat experience designed for endgame players.

Key Features

Feature	Details
---------	---------
Type	Wave-based tower challenge
Difficulty	Endgame (Level 30+ recommended)
Progression	Sequential floors, no checkpoints
Currency	Tower Gems (exclusive)
Exclusive Rewards	Aquilune, Arcane Spark Stone, Potential Serum

Why the Endless Spire Matters

The Endless Spire is important because:

Exclusive Monsters - Aquilune can only be obtained here
Upgrade Materials - Arcane Spark Stone for B→A tier evolution
Potential Serum - Increases monster stat potential
End-game Challenge - Tests your team composition and strategy
Bragging Rights - High floor clears are impressive achievements

How to Access the Endless Spire

Getting to the Endless Spire is straightforward:

Location

Go to Starter Island (main hub)
Look for the Spire Portal - a glowing tower entrance
Interact with the portal to enter
You'll be teleported to the Spire lobby

Requirements

Level Requirement: There's no strict level gate, but you'll struggle below level 25
Monster Requirement: Bring your strongest team
Recommended Team: All slots filled with B-tier or higher monsters

Tower Mechanics Explained

Understanding how the Spire works is crucial for success:

Floor Structure

Each floor follows this pattern:

Enter Floor - You're teleported to an arena
Wave 1 - First group of monsters spawns
Wave 2 - Second group after clearing Wave 1
Wave 3 (some floors) - Third wave on harder floors
Clear - All waves defeated, proceed to next floor

Boss Floors

Every 5 or 10 floors (varies), you'll encounter a Boss Floor:

Single powerful boss monster
Much higher HP than regular enemies
Special attack patterns
Better rewards upon defeat

Difficulty Scaling

Floor Range	Enemy Level	Recommended Team
-------------	-------------	------------------
1-10	15-25	C-tier team, Level 20+
11-20	25-32	B-tier team, Level 30+
21-30	32-38	A-tier team, Level 35+
31-50	38-45	All A-tier, Level 40
50+	45+	Optimized A-tier, max level

No Checkpoints System

Important: The Endless Spire has NO checkpoints!

You always start from Floor 1
If you die or quit, progress resets
Each run is a fresh attempt
Plan your time accordingly

Complete Rewards Guide

The Spire offers unique rewards not available elsewhere:

Tower Gems (Main Currency)

Tower Gems are earned from:

Completing floors (1-3 gems per floor)
Boss floor clears (5-10 gems)
Daily login bonus (varies)
First-time floor clears (bonus gems)

Spire Shop Items

Item	Cost (Gems)	Effect
------	-------------	--------
Arcane Spark Stone	500	Evolve B-tier to A-tier
Potential Serum	200	Increase stat potential
Tower Egg	300	Chance for Aquilune
XP Boost (1hr)	50	2x XP for 1 hour
Coin Boost (1hr)	50	2x Coins for 1 hour

Arcane Spark Stone (Critical Item)

The Arcane Spark Stone is extremely valuable:

Used to evolve B-tier monsters to A-tier
Alternative to traditional fusion
Guaranteed tier upgrade for specific monster
Only obtainable from Endless Spire

This means Endless Spire is the only reliable way to get A-tier monsters of species you choose!

Exclusive Monster: Aquilune

Aquilune is the signature Spire monster:

Stat	A-Tier Value
------	--------------
Attack	720
HP	1,950
Type	Celestial/Flying
Rarity	Spire Exclusive

Aquilune is considered one of the top 3 monsters in the game, rivaling even Glazadon!

Climbing Strategies

Maximize your Spire performance with these strategies:

Team Building for Spire

Optimal Team Composition:

Slot	Role	Best Choices
------	------	--------------
1	Primary DPS	Glazadon, Starshade, Aquilune
2	Secondary DPS	Flaragon, Noctane
3	Type Coverage	Varies by floor
4	Tank/Sustain	Mountusk (if struggling)

Type Advantage Planning

Different floor ranges favor different types:

Floors 1-10: Mixed enemies, any team works
Floors 11-20: Fire enemies common, bring Water types
Floors 21-30: Ice enemies appear, Fire types useful
Floors 31+: All types, need balanced team

Survival Tips

Don't rush - Clear each wave fully before advancing
Position carefully - Avoid getting surrounded
Retreat if needed - Sometimes pulling back is smart
Watch HP - If your team is low, consider stopping

Speed Running Tips

Bring maximum DPS - Faster clears mean more floors
Skip animations - Mash through transitions
Know spawn points - Position before enemies appear
Optimal pathing - Move efficiently between waves

Floor-by-Floor Breakdown

Here's what to expect at each milestone:

Floors 1-10 (Tutorial Phase)

Easy enemies, great for warming up
Learn the Spire mechanics
Earn basic Tower Gems
Anyone with a full team can clear

Floors 11-20 (Challenge Begins)

Enemies hit harder, have more HP
Boss at Floor 20 is a skill check
B-tier team minimum recommended
First real challenge for most players

Floors 21-30 (Serious Content)

Requires A-tier monsters or max B-tier
Bosses have special mechanics
Type advantages become critical
Most players plateau here

Floors 31-50 (Hardcore)

Only for optimized teams
Every mistake is punishing
Requires perfect team composition
Rewards are significantly better

Floors 50+ (Infinite Mode)

For the top 1% of players
Floors continue infinitely
Leaderboard competition
Bragging rights territory

Common Mistakes to Avoid

Mistake 1: Starting Underprepared

Don't enter Spire with a weak team. It's better to farm bosses first and build a strong squad.

Mistake 2: Ignoring Type Matchups

Bringing the wrong types makes floors much harder. Research what enemies appear on each floor range.

Mistake 3: Not Spending Tower Gems

Tower Gems don't carry extra value by saving. Spend them on Arcane Spark Stones and Potential Serums!

Mistake 4: Rushing Through Floors

Each floor is an opportunity to reset cooldowns and position. Don't rush and make mistakes.

Mistake 5: Solo When You Can Group

Some servers have organized Spire runs. Grouping makes higher floors more achievable.

Daily Spire Routine

For efficient progression, follow this daily routine:

Log in - Claim daily Tower Gem bonus
Check Spire Shop - Note what you're saving for
Attempt a run - Push as high as you can
Record your peak - Track improvement over time
Farm if needed - If you plateaued, farm better monsters

Frequently Asked Questions

Q: What level should my team be for Endless Spire? A: Minimum level 25 for early floors, level 35+ for Floor 20+.

Q: Is Aquilune worth grinding for? A: Yes! It's one of the best monsters in the game and exclusive to Spire.

Q: Can I farm Tower Gems quickly? A: Focus on fast Floor 1-10 clears if you just need gems.

Q: Do Spire rewards reset daily? A: First-clear bonuses are one-time, but floor rewards are repeatable.

Q: What's the best team for Spire? A: Glazadon + 3 other A-tier DPS monsters is optimal.

Conclusion

The Endless Spire Tower is the ultimate test for Catch a Monster players. With exclusive rewards like Aquilune and Arcane Spark Stones, it's essential content for anyone serious about endgame progression.

Key takeaways:

Build a strong A-tier team before serious attempts
Learn floor patterns and enemy types
Spend Tower Gems on Arcane Spark Stones
Push your limits but know when to stop

For team building advice, check our Tier System Guide. To understand how to level up efficiently, see our Leveling Guide.