Use the official names as a starting point, then keep costs, effects, odds, and variant values tied to what your current game version actually shows.
The official game description confirms luck upgrades and four collectible variant names: Golden, Diamond, Galaxy, and Rainbow. It also advertises a free +50% Luck boost for joining the creator group, but that group boost is not proof of an upgrade level, variant odds, pity, or multiplier table. Check the current in-game upgrade screen and avoid any calculator that cannot show where its constants came from.
Use the value shown in your own session. A newly launched game can change costs quickly, so do not depend on an old screenshot.
Separate visible wording from assumptions. If the effect size or target odds are not shown, keep them unknown.
Decide whether the upgrade still leaves enough cash for the auction opportunities you care about.
Tip: The bid calculator can model reserve safety even though it does not model luck.
Use Golden, Diamond, Galaxy, and Rainbow as confirmed names. Add odds or multipliers only after a reliable check.
Luck and variant questions are related but not identical. A luck upgrade may affect some chance in the game, while a variant is a collectible result name. The public description links both to progression at a high level, but it does not provide the numeric relationship required for a break-even tool.
That missing relationship matters. A simulator with guessed odds can look authoritative because it produces precise percentages and animated outcomes. Precision does not make the input true. The site holds the gacha simulator and luck break-even helper until official or reproducible numbers can be reviewed.
For launch, the useful decision is budget-based. Read the upgrade cost, protect the reserve you need for auctions, and label any observed effect with a checked date. If a future update or creator-owned source publishes odds or multipliers, the source page and variant reference can be updated before new calculations go live.
The description lists four names but does not explicitly rank their rarity.
An unsourced odds table should remain a lead, not a fact.
A luck purchase can delay the core bid-and-collection loop if it uses the reserve.
Use the current in-game luck screen and read the displayed cost and effect before buying. Public sources do not provide a reliable full level table.
The official Roblox description says to like the game and join the creator group for a free +50% Luck boost. Use only the creator group linked from the official experience.
Golden, Diamond, Galaxy, and Rainbow are named by the official Roblox description.
No reliable public official odds were found for launch.
The high-level mechanic is confirmed, but exact effect sizes are not publicly listed.
No public source checked for launch confirms a pity or guarantee model.
