Slime RNG Upgrade Tree Guide – Best Upgrades and Progression Path

Getting rare slimes in Slime RNG is exciting, but long-term progression depends much more on how you spend your upgrade points. Many new players focus on upgrades that seem powerful at first glance, only to realize later that they slowed down their overall progress.

The Upgrade Tree system plays a major role in your success. Choosing the right upgrades can help you earn more coins, unlock stronger slimes faster, and make rebirths much more efficient. This guide breaks down every upgrade tree in the game and explains the best upgrade order for faster progression.

Understanding the Upgrade Tree System

Slime RNG features three main upgrade categories:

• General Tree
• Loot Tree
• Player Tree

Each tree serves a different purpose. Some upgrades improve your slime collection and rolling mechanics, while others increase your income or strengthen your character during combat. Learning how these systems work together is the key to building a strong account.

General Tree Upgrades

The General Tree focuses on rolling mechanics, slime management, enemy spawning, and overall progression.

• Luck Luck increases your chances of obtaining higher-rarity slimes. Since rare slimes generally have stronger stats and abilities, this is one of the most valuable upgrades in the game.
• Roll Speed This upgrade reduces the time required for each roll, allowing you to obtain new slimes much faster.
• Golden, Diamond, Void, and Galaxy Rolls These upgrades act as pity systems. After reaching a specific number of rolls, players receive guaranteed rare slime rewards.
• Bonus Frenzy and Chance Improves the frequency of bonus rolling events, giving players additional opportunities to obtain rare slimes.
• More Clovers Increases the appearance rate of Clover Rolls, which provide extra rolling benefits.
• Slime Slots Expands the number of active slimes you can equip simultaneously. More active slimes means more damage and faster farming.
• Goop Goop is the resource required for performing Rebirths. Unlocking it is necessary for long-term progression.
• Goop Drip and Goop Flood These upgrades increase the chance of enemies dropping Goop, helping players prepare for future rebirths.
• Enemy Rush Speeds up enemy spawn rates, resulting in more kills and greater income.
• Enemies Increases the number of enemies that appear at once.
• Big Slimes and Big Enemies Adds a chance for larger enemy variants to spawn.
• Huge Slimes and Huge Enemies Introduces even larger and stronger versions of enemies and slimes.
• Slimy Slimes and Slimy Enemies Unlocks special slimy variants that can appear during gameplay.
• Inverted Slimes and Inverted Enemies Adds inverted versions with unique appearances and characteristics.
• Target Range Extends the attack range of your slimes, allowing them to engage enemies from farther away.
• Friendly Luck Increases the maximum bonus luck gained from friends.

Loot Tree Upgrades

The Loot Tree is all about increasing rewards and improving your economy.

• Coin Income Boosts the number of coins dropped by enemies. This is arguably the most important upgrade in the entire game because every other upgrade depends on your ability to earn currency efficiently.
• Overkill Provides bonus coins when enemies are defeated with damage that exceeds their remaining health.
• Potions Allows enemies to drop temporary buffs such as: Luck Boosts, Speed Boosts, Currency Boosts!
• Food Enemies can drop food items used to level up your slimes.
• Offline Loot Improves the rewards earned while you’re offline, making progression continue even when you’re not actively playing.

Player Tree Upgrades

The Player Tree focuses on your character’s personal combat abilities and utility features.

• Rapid Fire Increases the firing speed of the Slime Gun.
• Gun Power Improves the damage dealt by each shot.
• Gun Range Extends the Slime Gun’s attack distance.
• Mark Blitz Allows slimes to attack marked targets more aggressively.
• Slime Gun Unlocks a special weapon that lets players mark enemies for their slimes.
• Teleporter Provides fast travel to previously unlocked zones.
• Walk Speed Increases movement speed, making exploration and farming more efficient.
• Magnet Automatically attracts nearby loot without requiring manual collection.

Best Upgrade Priority in Slime RNG

One of the biggest mistakes new players make is rushing straight toward Goop and Rebirth upgrades. While Rebirth provides a significant Luck bonus, resetting too early can hurt your progression if your slimes are not strong enough to quickly recover lost progress. Instead, focus on building a strong economy first.

1. Coin Income

Coin Income should be your highest priority. Every upgrade in Slime RNG requires coins, so increasing your earnings early will speed up every aspect of progression. More coins mean faster upgrades, stronger slimes, and quicker access to new zones.

2. Luck

Once Coin Income becomes expensive, start investing heavily into Luck. Stronger slimes will help you clear enemies faster, earn more resources, and progress through content more efficiently.

3. Goop

After Coin Income and Luck begin requiring significant investment, it’s time to unlock Goop and prepare for your first Rebirth. The Luck bonus gained from Rebirth can dramatically improve future runs.

4. More Enemies

Increasing enemy spawns allows you to farm resources faster and generate more coins per minute.

5. Slime Slots

Additional slime slots increase your overall damage output and improve farming efficiency.

6. Roll Speed

Faster rolls mean more chances to obtain rare slimes within a shorter period.

7. Diamond Rolls

Diamond Rolls improve consistency by providing guaranteed rare slime rewards after enough rolls.

Recommended Upgrade Order

For the smoothest progression, follow this upgrade path:

1. Coin Income
2. Luck
3. Goop
4. More Enemies
5. Slime Slots
6. Roll Speed
7. Diamond Rolls
8. Everything Else

This order provides a strong balance between income generation, slime acquisition, and long-term progression.

The Upgrade Tree system is one of the most important mechanics in Slime RNG. While it may be tempting to unlock flashy features early, focusing on Coin Income and Luck will provide far better results over time. Once your economy is stable, you can invest in Goop and begin taking advantage of the Rebirth system without struggling to rebuild your progress. Following the recommended upgrade order will help you level faster, earn more resources, and unlock stronger slimes throughout your journey.