MOUNT RNG Luck Calculator
Stack the published layers, then decide if a potion is still necessary.
Type the layers you actually have. The total is a planning number, not a server packet. TaleSun publishes +5 per friend, +20 for the like / group / notification bundle, +200 and +420 on two Game Passes. Potion math belongs in the last box because the shop tooltip moves. For the full argument, read how to get Luck. For Robux ranking, read Game Pass value.
Estimated stacked Luck: 0
How to fill the fields
Friends are Roblox friends in the same twelve-player server, not the people in a Discord call. If four friends loaded in, type 4. If you are solo, type 0 and feel the gap. The group box is one toggle for the whole +20 bundle — do not count like, group, and notifications as +60. The two pass boxes are independent and stack. The potion box is a number you copy from the item you are about to buy, or 0 if you are staying sober.
What the total is for
Use it to compare two nights. Night A: three friends, group on, no pass, no bottle. Night B: solo, group off, Ultra Luck bought in a hurry. Night A often wins and costs Essence zero. That comparison is the reason this page exists.
The total does not include island table shifts. Celestial Peak is not +Luck; it is a different pool. Buy the key when the calculator says you are already stacked and you are still unhappy with the silhouettes.
After you have a number
Redeem codes if you have not. Equip an exclusive. Roll a batch. Convert junk with Essence rules. Do not sit on this page refreshing the total as if it were a slot. The codes copier is the other tool; use both, then close the wiki and play. If you wanted a script instead, the auto roll page is that door, with a ban warning attached.
Related pages
Potions and Stars explains which bottle matches a sit length. Tools Hub lists both helpers. How to play is still the loop the number sits inside. A high Luck total on the starter island is a fancy way to roll starter commons. Move.
If the number looks huge and the silhouettes do not, you are in the wrong pool. Peak and Magma Lair change what can appear; they do not add a hidden +500. Buy the key, walk once, then roll. Recalculate only when a friend joins or leaves. Refreshing this page will not spawn Yoru.
Write the total in chat for your group before a shared window. Agreement on the stack prevents the one player who skipped the group from wasting everyone else’s potion clock. Then close the calculator. The tool has done the only job it has: stop you from buying a bottle to replace a free +20 you forgot to click.
Potion field tips: type 0 unless the shop tooltip is open in another window. Guessing a multiplier makes the total fan fiction. If TaleSun adds an event buff, add it there as a number, then delete it when the event ends so next week’s math stays honest. The potions page is still the buy-order brain; this widget is only arithmetic. Close it when the window starts.
Frequently Asked Questions
Quick answers to the most common questions.
Why is my in-game Luck different?
Unlisted event buffs or a potion you forgot. This tool only sums the layers you type.
Do public players count as friends?
No. They must be on your Roblox friends list and in the same server.
Should I add potion Luck if I have not bought it yet?
Only to preview. Buy the bottle after the free layers are on.
Does Azatoth's pass add Luck?
No. Against the Test of Time is a secret-island pass, not a roll stat.