Slime RNG All Rebirth — Complete Tier List, Costs & Multipliers

Early, Mid, and Late Rebirth Tiers Explained

The rebirth ladder is not a flat progression. The first four rebirths deliver the best return per coin spent, the middle tiers (5 through 9) compound meaningfully but require more preparation, and the late tiers (10 through 15) are long-game investments that only pay off for players who have already built a fast post-reset recovery route.

Early Tier: Rebirths 1–4

The first rebirth costs exactly 1,000,000 coins and delivers a modeled 1.12x income multiplier and 1.12x luck multiplier. That is the cleanest ROI in the whole ladder — you spend 1M to permanently improve every future roll and every future coin farm. Rebirth 2 costs about 1.65M and Rebirth 3 costs about 2.72M. Those three resets together put you at roughly 1.41x luck and 1.40x income, which in practice means Legendary and Mythic slimes roll about 40% faster than at zero rebirths under the same luck setup.

The catch is recovery time. After Rebirth 1 your slime team resets and you need to rebuild income. For most accounts this means finding Fire Slime or Ice Slime again before farming feels stable. Based on May 2026 session tracking, a well-prepared first reset with a coin code active recovers in 15 to 20 minutes. An unprepared one can stall for 45 minutes or longer if you are rolling from Basic Slime at low speed.

Mid Tier: Rebirths 5–9

By Rebirth 5 the cumulative luck multiplier reaches roughly 1.73x and the income multiplier approaches 1.76x. The coin cost for Rebirth 5 is about 4.49M, which already requires a solid farming routine to reach without a long idle session. At Rebirth 5 the community-observed recovery window stretches to 28 to 35 minutes of active play at 10 to 15x luck with a stable uncommon or rare income slime — longer than early rebirths because the baseline expectations for a rebuilt account are higher.

Rebirths 6 through 9 push costs into the 7M to 35M range. These are most efficient for players who have already solved rebuilding: they know the first five slimes they need, they have a code timing routine, and they can hit comfortable farming pace inside one average session (the average Slime RNG session runs about 19 minutes). If recovery takes multiple sessions, the mid-tier multiplier gains can be outpaced by simply farming more at your current rebirth count.

Late Tier: Rebirths 10–15

Rebirth 10 has a modeled cost of roughly 116M coins and delivers a cumulative income multiplier around 3.11x and luck multiplier around 2.70x. These are late-game numbers that assume a fast rebuild route, a strong slime lineup, and probably an active code or two during recovery. The multiplier at this range is genuinely significant — a 3x income multiplier means a Void Slime (5,000 cash/min baseline) effectively becomes a 15,000+ cash/min earner, which changes Legendary and Mythic chase timelines substantially.

Rebirths 11 through 15 cross into theory-crafting territory for most players. Rebirth 15 costs roughly 5.4 billion coins, which is beyond what casual sessions can accumulate without serious late-game optimization. If you are tracking these tiers, you already have the data infrastructure to judge whether the compounded multiplier still pays back before your next major account target.

How the Multiplier Math Works

The table and calculator on this page use three formulas derived from community-observed scaling, not from official Stouts Studio game files. I use the same constants the rebirth ROI calculator and coins calculator use, so the numbers stay consistent across the site.

Coin cost formula

Cost to reach Rebirth n: round(1,000,000 × 1.65^(n−1)). Rebirth 1 costs 1M, Rebirth 2 costs ~1.65M, Rebirth 3 costs ~2.72M. The 1.65 scaling factor is the community-consensus estimate — in-game cost text and Discord reports from April to May 2026 consistently cluster around this factor for the first 6 tiers, with less data above that.

Luck multiplier formula

Cumulative luck after Rebirth n: 1 + 0.12n + 0.005n². The additive 0.12 per rebirth is the base luck gain. The 0.005n² quadratic term models the slight acceleration community reports suggest at higher rebirth counts — late rebirths feel proportionally better for luck than a purely linear model would predict. Treat both terms as estimates.

Income multiplier formula

Cumulative income after Rebirth n: 1.12^n. This is a pure compounding model at 12% per rebirth, matching the modeled income jumps players report after each reset. Three rebirths gives about 1.40x, eight gives about 2.48x, ten gives about 3.11x. The coins calculator uses the identical formula, so any number you copy from this page into that calculator will produce consistent output.

Cumulative coin costs are the sum of all individual tier costs up to and including that rebirth. The income gain per tier stays constant at 12% because income uses a compounding model, while the luck gain per tier grows slightly due to the quadratic term.

Rebirth Strategy by Account Stage

The ladder table tells you what each rebirth costs and gives — strategy is about deciding which rebirth to prioritize given where your account is today. The framework I use has three phases, matching the same early/mid/late split the rebirth guide covers in detail.

One rule that applies across all stages: do not stack a rebirth with another major change on the same session. If you just unlocked crafting, hold the rebirth for the next session. Both systems consume coins and attention, and combining them turns two clean decisions into one confusing one. I moved this note from the ROI calculator page because it applies to the all-rebirth context just as strongly — the multiplier math is one input, session planning is the other, and neither works without the other.

If you want to check whether your current coin stack is ready for the next specific tier, the rebirth ROI calculator takes your live coin count and farming rate and returns a plain yes/no verdict with a recovery time estimate. It uses the same cost formula as this page so the numbers match.