How Rolling Works in Sol's RNG: Luck, Biomes and Breakthroughs

A roll can be changed by your equipped gear, active effects, bonus-roll timing and the current biome. Those systems do different jobs. A biome's native odds apply to its associated auras; they do not give every roll a general Luck boost. Use the Luck reference for the current calculation and the Breakthrough reference for the biome rule.

Start with the roll you are making

The Rolling reference describes normal rolls, Auto Roll, roll settings and the aura pool. Each roll selects an aura under the game's current rules. The displayed 1-in number is a useful label for the aura's base or native rarity, but it is not a promise that one copy will appear after that many attempts. Bloxism's Aura desk is a catalog and personal browser log; it cannot see your live effects, roll counter or Storage.

Before comparing two screenshots, check whether each player had the same gear, active potion, bonus roll and biome. A rare aura can have different displayed rarity in its native biome without either player changing their equipment.

Put Luck sources in the right order

The wiki's Luck explanation groups the calculation into basic buffs, bonus-roll multipliers, special one-roll buffs and a final VIP multiplier. Basic sources are mostly added together before the bonus-roll multiplier. A statement that every gear, potion and event boost simply multiplies every other boost is therefore misleading. The exact outcome depends on the current item and effect rules.

More rolls and a stronger individual roll answer different questions. Roll speed changes how often you try; Luck changes the roll calculation. Neither guarantees an aura on a schedule. Compare a gear's current recipe, Luck, speed and bonus behavior at Jake's Workshop before spending its ingredients. A cheap recipe does not automatically repay its cost in one session.

• Equipment: a Luck Glove raises basic Luck while equipped. Other gears can affect roll speed or a particular bonus roll instead; read the gear list before comparing percentage labels.
• Timed effects: a Lucky Potion gives a timed Luck effect. The effects reference says a repeat of the same effect extends its duration rather than doubling the boost, and tiers of the same effect generally do not stack.
• One-roll effects: the Luck reference handles special potions separately after the bonus-roll part. Some have replacement or buff-clearing rules. Read the potion and your active-effect tray before using a scarce one.

Native odds versus a breakthrough

When an aura has a native biome, that biome can improve that aura's rarity. Rolling it outside the native biome is a breakthrough. The Breakthrough page uses Abyssal Hunter as an example: it lists 1 in 100 million in RAINY and 1 in 400 million outside RAINY. Those are source-listed aura rarities, not a 4× boost to your entire Luck stat. Check the current biome list for event-specific exceptions and changes.

Some auras have special or exclusive conditions, and updates can change both the pool and the numbers. A rare biome is an opportunity to check the auras tied to it; it is not proof that every possible roll is better. If you use a one-roll potion, choose the timing based on the aura you are seeking and the potion's own rule, rather than a blanket instruction to save every potion for any event.

Set up a rolling session you can explain

Developers can publish redeem codes, but there is no reason to assume a constant release schedule. The community code reference shows where redemption lives in Settings and separates active, upcoming and expired entries. Bloxism's codes page displays the codes currently source-checked here; verify a code in the game before planning a session around its reward.

Reviewed 11 October 2026 against the community wiki's Rolling, Luck, Effects, Breakthrough, Biomes, Gears, Settings, Workshop and Codes pages. Recheck the game UI after an update.