[Review] Lucky Spin for Dummies: An Event Guide in Infinity Kingdom

💠Introduction

What’s up, folks? Lucky Spin has been a regular event for the better part of the game so far. It remains one of the free ways to obtain premium common element immortals. Let’s take a closer look at the weekly event, its odds, and determine the average cost to obtain immortals.

💠Table of Contents

• Overview
• Probability in Theory
• Probability in Practice
• Cost and Value
• Summary

💠Overview

Lucky Spin is a recurring three-day event that runs each week from Sunday through Tuesday and gives players a chance to earn Immortal fragments alongside a variety of progression resources. The roulette contains 12 reward slots, with each spin costing 300 Gems and the featured Immortal prize awarding 60 fragments, which is guaranteed within 40 spins. Other possible rewards include Dragon Crystals, Rare Dragon Chest Keys, Soul Crystals, speedups, resources, Market Orders, and a Miracles of Goddess Chest. Because the featured Immortal is guaranteed by 40 spins, players may need to spend up to 12,000 Gems to secure the 60 fragments, while collecting the other roulette rewards along the way. You can spin the roulette 50 times a day.

💠Probability in Theory

Lucky Spin has 12 reward slots, with the featured Immortal at a 2.5% rate, Ancient Spirits Selection Chest at 4%, Ultimate Experience Scroll at 5%, two 3-hour Speedups at 8%, five Superior Experience Scrolls at 5%, a Rare Dragon Chest Key at 5%, 20 Market Orders at 9%, and resources making up the remaining 62.5%. The Immortal reward gives 60 shards, guaranteed by the 40th spin, and pulling it early resets the pity counter. Because of that reset mechanic, the average cycle is about 25.47 spins rather than 40. At 300 Gems per spin, the average cost comes out to roughly 7,641 Gems per 60 shards, compared with a worst-case pity cost of 12,000 Gems. Around 64% of cycles should hit the Immortal before pity, while the remaining spins provide relatively worthless side rewards such as keys, speedups, Market Orders, experience items, and resources.

💠Probability in Practice

Over 300 spins, I pulled the featured Immortal approximately 7 times, giving me around 420 Immortal shards in total. Since every spin costs 300 Gems, completing 300 spins required 90,000 Gems, which puts the practical cost at roughly 12,857 Gems for each 60-shard Immortal pull, or about 214 Gems per shard. This is noticeably worse than the theoretical average. With a 2.5% natural chance to pull the Immortal and a guaranteed pull by the 40th spin, with pity resetting whenever the Immortal is obtained early, the average cycle should be about 25.5 spins. That translates to roughly 11 to 12 Immortal pulls, or around 690 shards, over 300 spins, with an expected cost of approximately 7,600 Gems per 60 shards. Getting only seven Immortal pulls means receiving roughly 40% fewer shards than expected, while paying around 69% more Gems per Immortal pull. Although Lucky Spin's pity system provides a safety net against extremely long dry streaks, actual results can still vary considerably, and this 300-spin sample performed substantially below the theoretical average.

💠Cost and Value

From a cost-value perspective, Lucky Spin is an expensive event if the primary goal is obtaining premium Immortal shards. Unlike many other events, there are no bundles for discounted Lucky Spin tickets, so every spin directly costs 300 Gems, with the 40-spin pity requiring up to 12,000 Gems for a single 60-shard Immortal pull. Early pulls can improve the value, but poor luck can quickly drain a large Gem stockpile, while the additional resources, speedups, Market Orders, Dragon Chest Keys, and experience items are generally not valuable enough to justify the expense. Premium Immortal shards are also available through other events and progression systems for less, although those methods usually take considerably longer. Lucky Spin is therefore best viewed as paying a premium to obtain and develop a specific Immortal quickly rather than as an efficient use of Gems.

💠Summary

Lucky Spin costs 300 Gems per spin, with a 40-spin pity and an expected cost of about 7,600 Gems per 60 Immortal shards. In practice, 300 spins yielded only seven Immortal pulls for 90,000 Gems, significantly below expectations. Overall, it is an expensive way to quickly obtain premium Immortal shards.

Do you think Lucky Spin should be revamped? Let me know in the comments below!

💠References

Version 2.9.8

Infinity Kingdom Official Website

PC

iOS

Android

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