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Slime RNG Upgrade Tree Priority Guide

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This guide helps you decide which upgrades to buy first in Slime RNG, a Roblox game where you collect slimes with different rarities. By following a clear priority order, you’ll increase your chances of getting rare slimes faster and make better use of your limited resources. You’ll learn what to prioritize early, mid, and late game, plus common mistakes to avoid.

What You’ll Need

  • Access to Slime RNG in Roblox
  • A basic understanding of the game’s currency (usually coins or gems)
  • Patience – some upgrades take time to save for

Step-by-Step

  1. Understand the upgrade tree structure. The upgrade tree in Slime RNG has several branches, typically including: Luck (increases rare slime chances), Speed (reduces respawn time or increases catch speed), Multiplier (increases coins or gems earned per slime), and Capacity (allows holding more slimes). Some versions also have Rebirth or Prestige upgrades. Open the upgrade menu to see what’s available.
  2. Start with early Luck upgrades. Your first goal is to get your first rare or epic slime. Spend your initial earnings on the cheapest Luck upgrades. These usually cost little and provide a noticeable boost. Aim for at least 3-5 levels in Luck before anything else.
  3. Buy one or two Speed upgrades next. Once you have a few Luck levels, get a couple of Speed upgrades. Faster respawns mean more slimes per minute, which translates to more chances for rare drops. Even a 10-20% speed increase helps early on.
  4. Alternate between Luck and Speed. For the early to mid game, keep alternating: buy a Luck upgrade, then a Speed upgrade, then Luck again. This balanced approach maximizes your overall efficiency. Don’t dump everything into one stat.
  5. Invest in Multiplier when you can afford it. Once you have around 10 levels in both Luck and Speed, start putting some points into Multiplier. This increases your currency income, allowing you to buy more upgrades faster. A good ratio is 2 Luck : 2 Speed : 1 Multiplier until you reach mid-game.
  6. Save for the big Luck milestones. Many versions of the game have significant Luck boosts at specific levels (e.g., level 10, 25, 50). Check the upgrade descriptions – if a level says “huge boost” or “unlocks new rarity,” prioritize saving for that instead of spreading points thin.
  7. Unlock and upgrade Rebirth/Prestige as soon as possible. If the tree includes a rebirth or prestige mechanic, unlock it as soon as you meet the requirements. Rebirth resets your progress but gives permanent bonuses that multiply all future gains. Do this early – even if it feels like a setback – because the multiplier is essential for late game.
  8. Mid-game: focus on Luck to 50, then Speed to 50. Once you’ve rebirthed a few times, your new goal is to get Luck to level 50 (or the max) because rarity is the core of the game. Speed is secondary but still important – get it to 50 after Luck.
  9. Late game: max out Multiplier and Capacity. After Luck and Speed are maxed, put everything into Multiplier to earn more currency, then Capacity if you find yourself hitting the cap often. Capacity is less critical, but it helps when you’re AFK farming.
  10. Re-evaluate after each major update. The game developers may adjust upgrade costs or effects. Check the official patch notes or community discussions to see if the priority order has changed.

Common Mistakes

  • Ignoring Speed entirely. Some players think Luck is the only stat that matters. But without speed, you’re catching fewer slimes per hour, which reduces your overall chances of getting a rare.
  • Buying the most expensive upgrade first. It’s tempting to save for that huge Luck boost, but it’s often better to buy several cheap upgrades that give a similar total benefit. Check the cost-per-effect ratio.
  • Rebirthing too early. If you rebirth before you have a decent base (e.g., before you’ve unlocked common and uncommon slimes), you’ll struggle to progress. Wait until you can comfortably get back to your previous level within a few hours.
  • Neglecting Multiplier. Without a decent income, you’ll be stuck saving for hours. A few points in Multiplier early on can cut that time significantly.
  • Not reading upgrade descriptions. Some upgrades have hidden effects or requirements. Always read the tooltip before buying.

Tips

  • AFK farm with a full inventory. If you’re going to be away, make sure your capacity is high enough to keep catching while you’re gone. This is where Capacity upgrades shine.
  • Use boosts wisely. If the game offers temporary boosts (e.g., 2x luck for 10 minutes), save them for when you can actively play and catch slimes, not when you’re AFK.
  • Join a community. Look for Slime RNG Discord servers or Reddit threads. Players often share the current best upgrade order, especially after updates.
  • Track your progress. Keep a note of which upgrades you’ve bought and at what level. This helps you plan your next purchase and avoid wasting resources.

Troubleshooting

  • You’re not getting any rare slimes despite high Luck. Check if you’ve unlocked the rarity tier. Some rarities require a certain number of catches or a specific upgrade level. If you haven’t met the requirement, Luck won’t help.
  • You’re stuck with no currency. If you can’t afford any upgrade, go back to catching common slimes for a while. Don’t forget to claim any daily rewards or quests.
  • The upgrade tree looks different from what you expected. The game may have been updated. Look for the official wiki or recent YouTube videos to see the current tree.
  • Rebirth seems too punishing. If you rebirth and find yourself unable to progress, you may have done it too early. In that case, just grind back up – it’s usually faster the second time because of the permanent bonus.

Frequently Asked Questions

What is the best first upgrade in Slime RNG?

The best first upgrade is a cheap Luck upgrade. It gives you a better chance at rare slimes from the start, which speeds up everything else.

Should I rebirth as soon as I can?

Not always. Only rebirth if you can regain your previous progress within a reasonable time (a few hours). If you’re close to a major milestone, wait until after you hit it.

How does Speed affect my chances?

Speed reduces the respawn time of slimes, so you can catch more slimes per minute. More catches = more chances for rare drops, so Speed is almost as important as Luck.

What is the max level for each upgrade?

It varies by version, but typically Luck and Speed can be maxed at 100, while Multiplier and Capacity have lower caps. Check the upgrade menu for the current max.

Is Capacity worth upgrading?

Only if you’re AFK farming or find yourself hitting the cap frequently. Otherwise, it’s a low priority compared to Luck, Speed, and Multiplier.

Does the upgrade tree reset on rebirth?

Yes, in most versions, rebirth resets your upgrade levels, but you keep the permanent bonus from the rebirth. This is why you should rebirth early – the bonus stacks.

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