RNG Heroes Upgrade and Luck Priority Guide

The hexagonal upgrade tree is the single biggest lever in RNG Heroes, but the game never publishes the return on investment for any node. Independent guides split between a Luck-first plan (AllThingsHow upgrade-order) and a Loot-first plan (NerdsChalk gold guide). Both can be correct for different player states. This page shows the verified node costs, the formulas the community uses, and the Upgrade & Luck Scenario tool that lets you rank the buys with your own numbers.

What the upgrade tree actually is

The AllThingsHow upgrade-order guide, the AllThingsHow progress guide, and the NerdsChalk gold guide all describe the upgrade menu as a hexagonal grid of mutually unlocking nodes with two top-level branches: the Player branch (Luck, hero slots, max-enemies, hero damage, roll speed) and the Loot branch (Gold I, Offline Loot, Loot Collection, Loot Magnet, Loot Value). The developer has not published a node map, but the official description confirms the existence of the upgrade tree, the role of Luck, and the role of Gold.

First-tier costs that you can quote

These are the first-purchase Gold costs that AllThingsHow, NerdsChalk, and the AllThingsHow progress guide cross-report. The values are first-tier only; later levels of the same node scale geometrically.

Subsequent purchases of the same node step up by an observed multiplier in the 1.4x to 1.6x band per level, consistent with floor(BaseCost * 1.5^L * PrestigeGoldMult). The exact coefficient is not developer-published; the Earnaldo gamepass guide explicitly says drop-rate percentages on fan wikis are rumor and should not be used for purchase planning.

The community-observed math

The community uses a small set of formulas for the upgrade ladder. None of these are developer-confirmed; they are reconstructions from observable behavior and from the standard Roblox incremental-sim coefficient family.

• BaseCost(N) = floor(BaseCost * 1.5^(Level-1) * PrestigeGoldMult) — geometric scaling of repeated node purchases.
• EffectiveGoldPerSec = Sum(enemies) * EnemyReward * (1 + GoldMult) * (1 + PrestigeGoldMult) * (1 + GroupMult) * (1 + PotionMult) — group bonus and potion bonuses are multiplicative.
• RollTime_seconds = BaseInterval / (1 + RollSpeed% + PrestigeRollSpeed%) — roll cooldown compressed by every Roll Speed source.
• Luck_Total = BaseLuck + TreeLuck + PrestigeLuck + IndexLuck + GamePassLuck + PotionLuck — single Luck scalar feeds the gacha distribution.

The Luck -> DropProbability mapping is not published. The monotone-likelihood family p_tier ∝ w_tier * (1 + alpha * Luck)^k_tier matches the observed “Common stays common, Mythic climbs visibly” behavior with alpha ≈ 0.25 and tier exponents rising from ~0.8 (Common) to ~2.8 (Mythic), but treat these as a model, not a game constant.

The decision rule

A first buy should pass three checks before the Upgrade & Luck Scenario tool is even opened:

1. Cost fits the wallet. The first-purchase price should be no more than 50% of your current Gold balance, leaving headroom for a follow-up Hero slot or Zone unlock.
2. Effect is verifiable. Buy nodes whose effect is described in an independent guide (Luck, Stronger Heroes, Hero Slots, 4 Enemies, Offline Loot) before buying anything labeled “deeper” or “advanced.”
3. Effect is not duplicated. If you already own the Lucky gamepass (R$69) or the ULTRA Lucky gamepass (R$299), the +1 or +5 Luck is already in your Luck_Total; further spending on the Luck node has lower marginal return.

Where the two plans split

The Upgrade & Luck Scenario tool blends the two plans by accepting your Gold balance, your measured Gold per hour, and your current Luck scalar. It returns a color-coded buy/hold/skip queue and a Luck-threshold scenario for a 50-roll session.

The free +10% Gold / +1 Luck buff

The official description says liking the experience and joining the Heroplay Studios Roblox group grants a permanent +10% Gold and +1 Luck buff. This stacks multiplicatively with every other Gold and Luck source, including the Earnaldo gamepass guide Lucky and ULTRA Lucky passes. It is the single highest-leverage free buff in the game and should be active before any Gold or Luck investment is made.

What this page does not publish

• The exact per-level cost multiplier for every node. The 1.5x midpoint is consistent with the late-prestige ladder but is not confirmed.
• The exact Luck -> DropProbability mapping. The p_tier ∝ w_tier * (1 + alpha * Luck)^k_tier family is a model, not a game constant.
• The Tier-II and beyond Prestige multipliers. Only Tier-I is published across the community guides we cite.

Treat the Upgrade & Luck Scenario tool as the way to make the call when these gaps matter. Paste in your current Gold, your measured Gold per hour, your current Luck, and your current Prestige setup; the tool returns a per-node payback estimate in hours and a buy / hold / skip colour.