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Mysterious Island Simulator - September (1) 2025

How to use the Mysterious Island tool

This tool shows the latest Mysterious Island layout and lets you plan your path to maximize rewards while minimizing resources.

Rewards and emerald values are based on HWG and rarity fair.

Best Paths (September 1, 2025)

Sorted by Emeralds per Move (highest first).
Note: The screenshots below do not consider that the first move should be to the south of the Portal.
Cascade island is better in terms of EPM.

1
Path #1 — 74 moves, 214,364.57 emeralds (2,896.82/move)
74 moves — 214,364.57 emeralds (2,896.82 / move) 68 Random Chest; 13 Chest of Patterns; 35k Emerald; 110 Large Skin Stone Chest; 500 Titan Artifact Sphere; 100 Absolute Artifact Chest; 500 Wish Insignia; 500 Wish Crystal
2
Path #2 — 60 moves, 173,461.02 emeralds (2,891.02/move)
60 moves — 173,461.02 emeralds (2,891.02 / move) 55 Random Chest; 11 Chest of Patterns; 35k Emerald; 500 Titan Artifact Sphere; 100 Absolute Artifact Chest; 500 Wish Insignia; 500 Wish Crystal
3
Path #3 — 56 moves, 161,466.13 emeralds (2,883.32/move)
56 moves — 161,466.13 emeralds (2,883.32 / move) 51 Random Chest; 11 Chest of Patterns; 35k Emerald; 500 Titan Artifact Sphere; 100 Absolute Artifact Chest; 1 War Flag Chest
4
Path #4 — 47 moves, 134,351.34 emeralds (2,858.54/move)
47 moves — 134,351.34 emeralds (2,858.54 / move) 43 Random Chest; 8 Chest of Patterns; 15k Emerald; 500 Titan Artifact Sphere; 100 Absolute Artifact Chest; 500 Wish Insignia; 500 Wish Crystal
5
Path #5 — 90 moves, 255,576.66 emeralds (2,839.74/move)
90 moves — 255,576.66 emeralds (2,839.74 / move) 83 Random Chest; 13 Chest of Patterns; 35k Emerald; 50 Elemental Catalyst; 110 Large Skin Stone Chest; 500 Titan Artifact Sphere; 100 Absolute Artifact Chest; 500 Wish Insignia; 500 Wish Crystal
6
Path #6 — 28 moves, 79,404.30 emeralds (2,835.87/move)
28 moves — 79,404.30 emeralds (2,835.87 / move) 26 Random Chest; 5 Chest of Patterns; 20k Emerald; 500 Titan Artifact Sphere
7
Path #7 — 33 moves, 92,774.19 emeralds (2,811.34/move)
33 moves — 92,774.19 emeralds (2,811.34 / move) 30 Random Chest; 5 Chest of Patterns; 20k Emerald; 500 Titan Artifact Sphere; 1 War Flag Chest
8
Path #8 — 41 moves, 113,513.98 emeralds (2,768.63/move)
41 moves — 113,513.98 emeralds (2,768.63 / move) 38 Random Chest; 8 Chest of Patterns; 35k Emerald; 500 Titan Artifact Sphere
9
Path #9 — 22 moves, 41,691.93 emeralds (1,895.09/move)
22 moves — 41,691.93 emeralds (1,895.09 / move) 21 Random Chest; 15k Emerald; 3 Chest of Patterns

Which Path Is Best? (Emerald Value vs. Move Budget)

Note: If you specifically want Catalysts, just go for it. But it is not cheap.
Compared to September (2), this island has much lower EPM.
If you are in need of golden thread or titan skin stone, prioritize exploring September (2) map.

Lowest Move Count (limited Explorer’s Moves)

  1. #9 — 22 moves → 41,691.93 emeralds (1,895.09 / move)
  2. #6 — 28 moves → 79,404.30 emeralds (2,835.87 / move)
  3. #7 — 33 moves → 92,774.19 emeralds (2,811.34 / move)

Highest Total Emeralds (you want sheer volume)

  1. #5 — 255,576.66 (90 moves)
  2. #1 — 214,364.57 (74 moves)
  3. #2 — 173,461.02 (60 moves)

Full Summary Table

# Moves Total Emeralds Emeralds / Move Notable Rewards
174214,364.572,896.8268 Random Chest; 13 Chest of Patterns; 35k Emerald; 110 Large Skin Stone Chest; 500 Titan Artifact Sphere; 100 Absolute Artifact Chest; 500 Wish Insignia; 500 Wish Crystal
260173,461.022,891.0255 Random Chest; 11 Chest of Patterns; 35k Emerald; 500 Titan Artifact Sphere; 100 Absolute Artifact Chest; 500 Wish Insignia; 500 Wish Crystal
356161,466.132,883.3251 Random Chest; 11 Chest of Patterns; 35k Emerald; 500 Titan Artifact Sphere; 100 Absolute Artifact Chest; 1 War Flag Chest
447134,351.342,858.5443 Random Chest; 8 Chest of Patterns; 15k Emerald; 500 Titan Artifact Sphere; 100 Absolute Artifact Chest; 500 Wish Insignia; 500 Wish Crystal
590255,576.662,839.7483 Random Chest; 13 Chest of Patterns; 35k Emerald; 50 Elemental Catalyst; 110 Large Skin Stone Chest; 500 Titan Artifact Sphere; 100 Absolute Artifact Chest; 500 Wish Insignia; 500 Wish Crystal
62879,404.302,835.8726 Random Chest; 5 Chest of Patterns; 20k Emerald; 500 Titan Artifact Sphere
73392,774.192,811.3430 Random Chest; 5 Chest of Patterns; 20k Emerald; 500 Titan Artifact Sphere; 1 War Flag Chest
841113,513.982,768.6338 Random Chest; 8 Chest of Patterns; 35k Emerald; 500 Titan Artifact Sphere
92241,691.931,895.0921 Random Chest; 15k Emerald; 3 Chest of Patterns

What is in the Random Chest?

Best path 1

Emerald value used in the simulator

Reward Emeralds (per unit)
'Pet Summoning Egg'250
'Summoning Sphere'75
'Chaos Particle'7
'Huge EXP potion'0
'Skin Stone Chest'14.516
'Large Skin Stone Chest'217.74
'Gold'0
'Titan Potion'0.15
'Soul Crystal'150
'Chaos Core'100
'Gleaming Seal Chest'12.5
'Titan Skin Stone'0.2667
'Essence of the Elements'0.1
'Flawless Artifact Chest'90
'Absolute Artifact Chest'180
'Random Greater Insignia'19.25
'Great enchantment rune'100
'Random Vibrant Crystal'9
'Artifact Seal Chest'12.5
'Titan Artifact Sphere'45
'Energy'1.2
'Orange Equipment Chest'7000
'Violet Equipment Chest'5000
'Golden Thread'20
'Emerald'1
'Chest of Patterns'3000
'War Flag Chest'10000
'Wish Crystal'18
'Wish Insignia'19.25
'Ancient Coin'0.4
'Legendary Gift of the Dominion'40000
'Elemental Catalyst'571.5
'Primal Catalyst'267

Methodology & Assumptions

Data sources. Emerald values use HWG’s rarity-fair pricing. Screenshots show simulator runs and do not enforce the “first move south of the Portal” rule; that rule shift the path slightly but usually doesn’t change the top tier choices.

How we score. For each path we total the emerald value of all rewards, then compute Emeralds per Move (EPM) = Total Emerald Value ÷ Explorer’s Moves. We rank by EPM for efficiency and also report total emeralds for players who care about raw volume.

Interpreting the rankings. #1 has the best EPM (~2,896.82) with 74 moves, which beats #5’s long run of 90 moves on efficiency, while #5 wins on total volume (255k+). If you’re move-limited (~30), #6 and #7 are the best compromises: both keep EPM around 2.8k without a long grind.