🗼 The Ruined Tower

Endless wave survival with 3% Soulstone drops from Evil Eyes - the best farmable source

📖 Reading time: 8 minutes | Last updated: February 4, 2026

Overview

The Ruined Tower is an endless wave survival challenge where you face increasingly powerful enemies. The raid itself is located in Ruined Tower - Zone 1. Entry requires a Tower Key. The Tower is the best location for Soulstone farming, with Evil Eyes (every 6th kill) dropping Soulstones at a 3% rate. The Ruined Tower can be a decent place to farm experience and loot as well.

  • Location: Ruined Tower - Zone 1
  • Entry Requirement: 1 Tower Key per run
  • Best Soulstone Farm: Evil Eyes (every 6th kill) offers a 3% drop rate
  • Endless Survival: Fight until you can no longer survive (but beware not to die and lose rank experience)
  • Fast Spawning: New enemies appear almost instantly and each kill extends the timer by 5 seconds (max 60s)
Entry Cost
1 Tower Key
Max Keys
3
Starting Time
60 seconds
Time Per Kill
+5s (max 60s)
Tower Exclusive: Evil Eyes (every 6th enemy) have a 3% Soulstone drop rate - the highest farmable rate in the game. Combined with fast enemy spawning, this possibly makes the Tower the best location for Soulstone farming.

Enemy Types

The Tower spawns two types of enemies in a predictable pattern:

Regular Enemy
Eyeballs
Kills 1-5, 7-11, 13-17...
Elite Enemy
Evil Eyes
Every 6th kill

Only Evil Eyes drop Soulstones at increased odds (3% chance). Evil Eyes appear every 6th kill (kills 6, 12, 18, 24, etc.) and are significantly tougher than regular Eyeballs. Regular Eyeballs do not drop Soulstones.

Enemy Scaling

Each kill increases enemy stats exponentially. The scaling continues indefinitely, making survival increasingly difficult:

Scaling Formulas

Level = Base Level + (0.1 × kills)

Attack = Base Attack × 1.0204^kills

Defense = Base Defense × 1.0041^kills

Health = Base Health × 1.0145^kills

Survival Tip: Attack scaling is the deadliest factor. Prioritize defensive stats and damage mitigation to survive longer runs.

Scoring & Rewards

Your score is simply your total kill count. Higher kills mean better rewards and more Soulstone opportunities.

Score = Total Kills

Reward Breakdown

  • Soulstones: 3% drop chance from Evil Eyes only (every 6th kill)
  • Experience: Scales with enemy level and number of kills
  • Loot: Quick kills and faster spawnrate means frequent loot drops
Soulstone Farming: With 3% drop rate from Evil Eyes (every 6th kill), expect roughly 1 Soulstone per ~200 total kills on average.

Strategy Guide

Build Requirements

  • Sustain Damage: Focus on consistent DPS rather than burst
  • Survivability: High HP, defense, and healing to outlast scaling damage
  • Loot modifier: Make sure your loot modifiers are high - maximize how many potions drop during the run!

Combat Strategy

  • Aggressive Killing: Don't let timer run low - kill constantly
  • Save Cooldowns for Evil Eyes: Every 6th kill is tougher, be ready
  • Pray for potions: Maximize loot chance to get more potions during the run
  • Heal Efficiently: Don't waste healing when unnecessary

Tower Key Crafting

Tower Keys are crafted using Pixels and Voxels. Like Cave Keys, they use a penalty system that increases cost but decays over time.

Penalty System

  • Penalty per purchase: 100 penalty per key crafted
  • Result: Faster decay than Cave Keys - costs normalize quicker

Decay per tick: 1 + penalty/80
Applied every 30 seconds

Decay Examples

  • At 80 penalty: Decay = 1 + (80/80) = 2 per tick
  • At 160 penalty: Decay = 1 + (160/80) = 3 per tick
  • At 400 penalty: Decay = 1 + (400/80) = 6 per tick

Conclusion: Higher penalties decay significantly faster. Tower Keys decay faster than Cave Keys (divider of 80 vs 115), making it easier to return to free key costs.

Key Cost Tiers

Penalty Range Pixels Voxels
0-9 Free Free
10-114 500 5
115-214 1,250 10
215-314 2,750 15
315-414 4,500 20
415+ 7,500 25

Strategy Tip: Be sure the grap the free keys from the shop when your penalty is low!

Unlock Requirement

The Ruined Tower unlocks after defeating the Mordots boss in the main campaign. Once unlocked, it becomes a permanent endgame activity for Soulstone farming.

Frequently Asked Questions

How do I get Tower Keys for The Ruined Tower?
Tower Keys are crafted using Pixels and Voxels. Your first key is free (0-9 penalty range). Each key crafted adds 100 penalty, increasing costs. Penalties decay at a rate of 1 + (penalty/80) every 30 seconds - faster than Cave Keys. Check the shop regularly for free keys. You can hold up to 3 keys maximum.
What are Evil Eyes and why are they important in The Ruined Tower?
Evil Eyes are elite enemies that spawn every 6th kill (kills 6, 12, 18, 24, etc.) in The Ruined Tower. They have a 3% Soulstone drop rate - the highest farmable rate in the game. Regular Eyeballs do not drop Soulstones. Combined with fast enemy spawning, this makes The Ruined Tower the best location for Soulstone farming.
How does enemy scaling work in The Ruined Tower?
Enemy stats scale exponentially with each kill: Attack scales at 2.04% per kill (fastest and deadliest), Health at 1.45% per kill (enemies become tankier), Defense at 0.41% per kill (slowest), and Level increases linearly at +0.1 per kill. Attack scaling is the most dangerous factor - prioritize defensive stats and damage mitigation to survive longer.
What is the best strategy for maximizing kills in The Ruined Tower?
Build for sustained combat with consistent DPS, high survivability (HP, defense, healing), and maximum loot modifiers for potion drops. Kill aggressively to maintain time (each kill adds 5 seconds, max 60s). Save cooldowns for Evil Eyes every 6th kill. Heal efficiently without wasting resources. Focus on outlasting the exponential attack scaling.
When does The Ruined Tower unlock?
The Ruined Tower unlocks after defeating the Mordots boss in the main campaign. Once unlocked, it becomes a permanent endgame activity for Soulstone farming with the best farmable drop rates in the game.