Throw a Coin Index Guide: Strategy and Farming Path

This Index guide for Throw a Coin covers the full progression strategy from a fresh save to a fully filled 408-entry Index, including the coin unlocks, the Mutation Machine build, the per-tier farming priorities, and the long-term plan for the late-game sections. The guide is built around the four luck sources (coin, Luck Multiplier, Index, Perfect Throw) and the way they stack, and it assumes the player is filling the Index as a background activity while pushing for higher coin tiers. The Roblox incremental simulator built by The BEST group yet! has had three major updates since launch on May 6, 2026, and the Index has been a part of all of them.

The guide is divided into four phases: the early game (Common through Rare), the mid game (Epic through Mythic), the late game (Cosmic through Nebular), and the endgame (Beyond through Galactic). Each phase has a different Index strategy, a different Mutation Machine priority, and a different cash target. The guide also covers the recommended build for the ADMIN ABUSE event that started on July 26, 2026 with the World 3 launch.

The Four Progression Phases

The guide is divided into four phases that map to the four Index progression bands. Each phase has a different Index strategy, a different Mutation Machine priority, and a different cash target, and the wiki recommends treating them as separate gameplay chapters rather than as a single continuous grind.

• Phase 1 (Common through Rare) targets the 25-entry crossover, which is the first Index milestone that meaningfully shifts drop rates.

• Phase 2 (Epic through Mythic) is when the Mutation Machine becomes worth the cash cost and the Big and Huge sub-entries start to fill.

• Phase 3 (Cosmic through Nebular) is when the Astral and Divine mutation runs become the main Index activity.

• Phase 4 (Beyond through Galactic) is a long-term endgame project that focuses on the mutation sub-entries for the late-game items.

• The Index guide is structured around the four progression phases and is updated whenever the developer ships a new patch.

Phase 1: Early Game (Common through Rare)

The early game Index strategy is to fill the first three rarity tiers as quickly as possible and to hit the 25-entry crossover. The crossover is the most important early-game Index milestone, because it is the point at which the Index luck bonus becomes large enough to noticeably shift drop rates. Below the crossover, the bonus is small enough that it is hard to tell the difference from a save with zero entries.

The recommended pattern is to equip the cheapest available coin and grind the lowest available tier. The Common and Uncommon tiers fill in a single play session, and the Rare tier fills in the first day of consistent play. The Mutation Machine is not yet worth the cash cost in the early game, so the wiki recommends saving the cash for the next coin tier instead.

Early Game Cash Flow

The early game cash flow is tight, and the recommended cash target is the Fortune Coin (~25,000 coins). The Fortune Coin is the first coin that meaningfully shifts drop rates, and it is the first coin that opens up the Rare tier for sustained farming. The Cash flow in the early game is mostly from selling Common and Uncommon duplicates, because the rare drops are too infrequent to be the main source of cash.

The recommended cash pattern is to sell duplicates as soon as you have two of the same item, and to keep the highest-rarity item of each type for mutation fodder. The Mutation Machine is not yet worth the cash cost, but the duplicates are useful for the Mutation Machine once it is unlocked. Selling the duplicates early gives you the cash flow to push for the Fortune Coin, and storing the high-rarity items gives you the fodder for the Mutation Machine later.

Phase 2: Mid Game (Epic through Mythic)

The mid game Index strategy is to fill the next three tiers (Epic, Legendary, Mythic) while building the Mutation Machine setup. The Mutation Machine was added in Update 3 on July 18, 2026, and it is the only way to fill the mutation sub-entries of the Index. The mid game is the right time to start running the machine, because the cash flow is large enough to feed it and the duplicate rate is high enough to keep it busy.

The mid game Mutation Machine priority is to run the machine on every Epic and Legendary duplicate you collect, and to keep the Mythic duplicates as storage for late-game mutation runs. The Big and Huge mutation tiers are the most efficient in the mid game, because the success rate is the highest and the cost is the lowest.

The Mutation Machine Build

The Mutation Machine build is the part of the mid game that requires the most planning. The machine has three inputs: a base item, a catalyst item, and a cash cost. The base item is the item you want to mutate, the catalyst is a lower-rarity item that is consumed in the process, and the cash cost scales with the rarity of the base item. The mutation tier you can produce depends on the rarity of the base item and the catalyst.

The recommended build is to start with Big mutations on Common items (cheapest, highest success rate), then Huge on Uncommon, then Rainbow on Rare, then Astral on Epic, and finally Divine on Legendary. The Divine mutation on a Legendary item is the first mutation tier that produces a meaningfully rare item, and the wiki recommends saving the Divine runs for items that you actually want to use, rather than burning them on duplicates.

Phase 3: Late Game (Cosmic through Nebular)

The late game Index strategy is to fill the next six tiers (Cosmic, Celestial, Eternal, Godly, Primordial, Genesis, Quantum, Universal, Omniversal, Absolute, Stellar, Nebular) while pushing the Mutation Machine toward the Astral and Divine mutation tiers. The late game is where the cash flow becomes meaningful and the rare drops become frequent enough to make every section fill feel rewarding.

The late game Mutation Machine priority is to run the machine on Cosmic and above items for Astral and Divine mutations. The success rate for Astral is around 10-15% and the success rate for Divine is around 5%, so each successful run is a meaningful Index fill. The cash cost is also significant (10,000+ for Astral, 50,000+ for Divine), so the late game is when the machine starts to feel expensive.

The late game is also when the World 2 unlocks become relevant. World 2 was added in the July 2026 update, and it is the source of the late-game coin tiers and the late-game item drops. The wiki recommends pushing for World 2 as soon as the cash flow allows, because the late-game items are only available in World 2 and above.

Phase 4: Endgame (Beyond through Galactic)

The endgame Index strategy is to fill the final six tiers (Beyond, Solar, Zenith, Supernova, Omega, Galactic) while running the Mutation Machine at full capacity. The endgame is a long project, and the wiki recommends treating it as a multi-month goal rather than a multi-week goal. The cash cost of the endgame mutation runs is high, and the duplicate rate for endgame items is low, so the Mutation Machine slows down significantly in the endgame.

The endgame is also when World 3 becomes relevant. World 3 launched on July 26, 2026 with the ADMIN ABUSE event, and it is the source of the highest-tier items in the game. The wiki recommends treating World 3 as a late-endgame activity, because the cash and coin requirements to unlock it are high and the Index gains from World 3 items are small in percentage terms (the Index is already mostly filled by the time you reach World 3).

The endgame Index strategy is mostly about filling the mutation sub-entries for the late-game items. The base entries for the endgame tiers are quick to fill (each tier has only 1-2 items), but the mutation sub-entries for those items are expensive and rare. A full endgame Index with all mutation sub-entries filled is the ultimate goal, and the wiki has not observed any player reaching it yet.

The ADMIN ABUSE Event Build

The ADMIN ABUSE event that launched on July 26, 2026 with World 3 is a limited-time event that gives bonus luck for a specific item type. The recommended build for the event is to push for the highest coin tier you can afford, equip the highest-rarity coin, and grind the event-specific item drops. The event bonus stacks with the Index luck, so a player with a strong Index has a meaningful advantage in the event.

The event build is the same as the standard late-game build, but with a focus on the event-specific item type. The Index luck bonus is the same in the event as it is in the standard game, so a strong Index translates directly to a strong event performance.

Long-Term Plan for 408 Full Entries

The 408-entry Index is the maximum possible Index size (68 base items × 6 entries per item, including 5 mutation variants), and reaching it is a multi-month project. The plan is to fill the 68 base entries first (a two-to-three-week project on a fresh save), then fill the Big mutation sub-entries (a one-to-two-week project), then the Huge sub-entries (a two-to-three-week project), then the Rainbow sub-entries (a one-to-two-month project), then the Astral sub-entries (a two-to-three-month project), and finally the Divine sub-entries (a multi-month project).

The plan is a rough guide rather than a strict schedule, because the actual time depends on the play schedule, the cash flow into the Mutation Machine, and the luck of the draw. A player who plays two hours a day will reach the 408-entry maximum in around six months, while a player who plays eight hours a day will reach it in around two to three months.

Frequently Asked Questions

What is the fastest way to fill the Index in the early game?

The fastest way is to grind the Common and Uncommon tiers in World 1 with the cheapest available coin and the Auto Throw upgrade turned on. The 25-entry crossover is reachable in three to four hours of focused play, and the Luck Multiplier stacks with every entry.

When should I start using the Mutation Machine?

The Mutation Machine becomes worth the cash cost above the 25-entry crossover, because at that point the Index luck bonus is large enough to offset the cash investment. Below the crossover, the cash is better spent on the next coin tier for a faster progress curve.

What is the best Mutation Machine strategy for the late game?

The best strategy is to run Astral and Divine mutations on Cosmic and above duplicates. The success rate is low, so each successful run is a meaningful Index fill, and the cash cost is high enough that you should only run the machine on duplicates you can afford to lose.

Is the ADMIN ABUSE event worth grinding?

Yes, the event gives bonus luck for a specific item type, and the Index luck bonus stacks multiplicatively with the event bonus. A strong Index is therefore a meaningful advantage in the event, especially for players competing for the top leaderboard positions.

Can I fill the Index without playing every day?

Yes, the Index is permanent, so you can take breaks without losing any progress you have already made toward the 408-entry maximum. The full Index is reachable on a casual play schedule, but it takes significantly longer than a focused play schedule would require.