Universal Tower Defense X Codes (May 2026) All Active & Expired
Looking for every working Universal Tower Defense X code right now? You’re in the right place. UTDX is Roblox’s anime-meets-strategy…
Not sure which slimes to chase in Slime RNG? I’ve ranked every base slime from S to D tier, factoring in strength, health, roll odds, and real progression value. Whether you’re grinding Meadow or pushing Crystal Cave, this list tells you exactly what’s worth targeting.
Here’s a quick summary before the full breakdown:
| Tier | Best Slimes | Best For |
|---|---|---|
| SSS | Void Slime | Endgame collectors |
| S | Huge Spike, Huge Rocky, Huge Lucky | Late-game DPS & luck stacking |
| A | Orca, Lucky Slime | Mid-game carry & luck support |
| B | Unicorn, Fin, Spike | Mid-game zone progression |
| C | Rocky, Fire Slime, Ice Slime | Early-to-mid transition |
| D | Goopy, Sunset, Leafy, Meow, Glo | Starter only — replace ASAP |
Void Slime is the rarest slime in the game with a 1-in-10,000,000 roll chance and 25,000 damage. It’s practically a display trophy — most players never roll it, even with max luck stacks. If you land one, it’s genuinely priceless in the trading market.
S-tier is dominated by Huge variants, each requiring millions of rolls but delivering game-changing stats:
I recommend running Huge Lucky on your roster whenever you’re popping Luck Boost codes — the passive stacks with other luck sources multiplicatively.
These slimes are realistically obtainable and punch well above their roll cost:
Both slimes are the bridge between your early grind and late-game Huge hunts. If you’re in the Forest or Cavern zone, these are your targets.
B-tier covers the 291–508 strength range — strong enough for mid-game zones, too weak for endgame.
Roll chances range from 326K to 21.5M, so these are achievable. Good stepping stones, but they fall behind once enemy health scales up in higher zones.
D-tier slimes top out at 138 strength. Goopy (your starter at 4 strength) belongs here along with Sunset, Leafy, Meow, and Glo. These slimes work only in Meadow. The moment you unlock Forest, swap them out or your coin farming slows dramatically.
Mutations dramatically shift a slime’s tier value:
Always check if your target slime has Huge potential before committing rare potions.
giveMeLuckNOW gives Luck Potion + Ultra Luck Potion. Hold them for a focused 10-minute Huge hunt with Huge Lucky on your roster.Void Slime is the absolute strongest at 25,000 damage, but Huge Spike is the best practical choice for DPS. Huge Lucky is the best for luck stacking and progression.
Lucky Slime sits in A-tier. It offers solid mid-game damage and a luck support passive that makes farming more efficient before you unlock Huge Lucky.
Huge Spike has a 1-in-1,000,000 (community-reported) base roll chance. Stacking luck multipliers through codes, rebirths, and group bonuses significantly improves your odds.
No. Replace D-tier slimes as soon as you reach Forest zone. Their low stats make grinding noticeably slower and they offer no mid-game value.
Shiny has a 1-in-500,000 chance and gives enhanced stats with a visual aura. Huge has a 1-in-1,000,000 chance and provides a massive damage multiplier. Huge Shiny combines both effects and is the rarest mutation.
