Slop Tower Defense New Units: Showcase, Upgrades & Evo Guide

Fresh drops in Slop Tower Defense keep the meta rotating every few weeks, and knowing which newcomers actually carry your run makes the difference between a clean sweep and a mid-wave reset. This unit guide walks through every recently added addition to the roster, breaks down upgrade paths, and maps out the evolution chain so your pulls stop gathering dust. The game has steadily expanded its summon pool since launch, and recent patches have introduced limited-time event units alongside permanent additions that shift the late-game tier conversation. According to this showcase video on YouTube by DinozaurPlays, the latest banner cycle added several splash DPS options and a couple of single-target nukes that change how players build their frontline.

If you want a complete look at the current summon pool, the summon rates breakdown covers rarity odds and banner rotation. The roster below focuses on the most recent additions and the value they bring to a fresh or mid-progress account.

Latest Unit Additions and Their Roles

The newest wave of units spans every rarity bracket, from Common workhorses you will fodder into evolutions to a 1% Hero unit that gates several late-game strategies. Each entry below lists the unit's banner window, role, and the most common way players slot it into a defense grid. The roster was last verified after the September 2026 patch notes, though drop windows can shift with surprise events.

Recent Permanent Additions

Unlike limited-time banner units that vanish after their event window closes, the recent permanent additions to the slop tower defense roster slot directly into the standard summon pool, meaning any slop unit you pull here stays summonable across future banners and meta shifts. New accounts should funnel early summon currency into these additions before chasing rotating exclusives, because their permanent availability makes them the safest long-term investment for evolving your core team composition. Since they don't compete with banner pity timers, you can keep pulling limited units guilt-free while gradually ranking up these permanent staples through the standard unit evolution list.

• Slop Knight — A melee bruiser added in the August 2026 patch. Trades range for raw durability and holds chokepoints longer than most Common units.

• Puddle Sniper — A long-range single-target unit with a hidden crit passive. Slower attack speed but melts boss waves when placed at maximum range.

• Goo Cannon — Splash DPS unit that scales with placement count. Drop two on a corner and the duo clears trash waves on their own.

• Mirror Slime — Support unit that copies the attack type of the strongest ally on the field. Flexible but requires a real frontline to anchor.

Limited-Time Event Units

Event units only drop during their banner window and become unobtainable once it closes, which makes early-pulling a real strategic decision tied directly to your current account progression and the Winter Prep / Sloppy Celebration / Anniversary Preview timeline. Because Sloppy Prime's 1% Hero banner overlaps Frostborn Slop and Toxic Bubble by a full week, players running a 10-pull budget often have to choose between guaranteed Epic utility (Toxic Bubble's Poison DoT stacks) and a long-shot Legendary carry. The cycle currently active pulls from the table below.

The Legendary Glitch Knight deserves special attention because its teleport mechanic lets it reposition mid-wave, which breaks several maps that depend on fixed pathing, especially on the backrooms-style stages where choke pulls and stall nodes fall apart the moment the Knight blinks past them. Because Glitch Knight's 0.5% drop rate during the Oct 02 – Oct 16, 2026 Anniversary Preview banner makes a natural pull extremely unlikely, most players should funnel saved Sloppy Crystals into the 10-pull pity track rather than burning single tickets, and hold the resulting unit specifically for the Corrupted Sublevel 7 and Office Loop remixes where its burst teleport deletes a clustered wave that standard AoE carries like Frostborn Slop cannot reach. If you can land a pull, hold it for the harder backrooms-style stages.

Upgrade Paths and Stat Scaling

Upgrading units in Slop Tower Defense follows a tiered system where each level bracket multiplies base stats and unlocks a passive at specific thresholds. The upgrade menu is gated by gold and a separate upgrade material called Slop Essence, which drops from completed waves. Knowing the bracket breakpoints saves you from overspending early.

Standard Upgrade Tiers

Every new unit in the slop tower defense roster shares the same five-tier upgrade ladder (T1 → T2 → T3 → T4 → T5 → MAX), so when you pull a fresh unit from the gacha, you can immediately plan its full stat curve without checking a per-unit sheet. Stat multipliers apply multiplicatively to that unit's base damage, range, and attack speed, meaning a T5 MAX Slosher that starts at 80 DPS ends up at roughly 320 DPS before external buffs. The cost values listed below are sourced from community testing reported by players on the post-launch balance thread, and exact numbers may shift with future balance patches.

The jump from Tier 4 to MAX is the most expensive single step, so save your Slop Essence for units you have already committed to rather than spreading it across the roster. New players who want a tighter resource plan should look at the resource management guide for farming routes that build up essence without burning summon tickets.

Evolution Branches

Some units branch into alternate forms at Tier 3, which lets you specialize them for either single-target boss damage or wave-clearing AoE. The branch choice locks in at the upgrade, so plan around your map's threat mix.

• Slop Knight branches into Slop Knight+Guard (tank) or Slop Knight+Banner (buff aura)

• Puddle Sniper branches into Puddle Sniper+Crit (burst) or Puddle Sniper+Range (sniper nest)

• Goo Cannon branches into Goo Cannon+Spam (AoE spam) or Goo Cannon+Heavy (single-shot nuke)

Evolution List and How to Evolve Units

Evolution in Slop Tower Defense is a separate system layered on top of the standard upgrade tiers. You can evolve units once they hit MAX, which costs duplicate copies of the same unit plus a small crafting fee. The duplicates act as fodder, which is why pulling multiple copies of a unit you actually want is part of the long-term plan rather than a mistake.

Evolution Requirements by Rarity

The fodder cost scales sharply with rarity, and Hero or Legendary evos often require event-specific crafting items on top of duplicate units — for example, a Legendary Evo I demands 8 dupes, 100,000 gold, and one Mythic Fragment that only drops during the rotating Mythic Breach event. Because these fragments don't appear in the standard gacha pool, most players stockpile them weeks in advance. The table below shows the standard cost for a single evolution step.

A second evolution step exists for every rarity and produces the shiny variant, which adds a flat 15% stat boost on top of the Evo I bonuses. Shiny variants are purely cosmetic on the stat sheet but show a glowing aura during placement, which makes them easier to track in dense builds.

Step-by-Step Evolution Walkthrough

The evolution menu sits inside the unit's detail panel — reached by tapping the unit portrait — and only unlocks once the unit reaches MAX tier, so common-rarity fodder units cannot be evolved until you promote them through their full upgrade chain first. Follow the sequence below to evolve your first unit, and remember that each rarity tier demands a different duplicate count: 10 copies for Common, 15 for Rare, 20 for Epic, and 25 for Legendary forms.

1. Open the Roster tab and select the unit you want to evolve.

2. Confirm the unit is at MAX tier (gold border on the unit icon).

3. Tap the Evolve button to open the material list.

4. Submit the required duplicates from your inventory. If you are short, the menu will let you convert matching-rarity units into fodder at a 3:1 ratio.

5. Pay the gold fee and any special item cost listed for the rarity.

6. Confirm the evolution and the unit swaps to its Evo I form with a brief animation.

The process takes about ten seconds per unit and there is no cooldown, so you can batch-evolve your roster in one sitting if you have the materials. Players who want to optimize their fodder conversion should review the best units tier list to avoid sacrificing a high-value pull for a marginal evolution.

Showcase Highlights for the Newest Units

A few of the latest additions have already carved out permanent slots in optimized builds, and understanding their kit helps you decide which ones to prioritize when summon tickets run low. Each showcase below covers the unit's core loop, ideal placement, and the evolution path that unlocks its best passive.

Sloppy Prime — The Hybrid Carry

Sloppy Prime is the headline pull of the current banner and the first Hero unit to function as both a primary DPS and a support buffer. Its passive spreads a stacking attack-speed buff to nearby allies every fifth attack, which scales your entire frontline instead of just the unit itself. Place it near the center of your formation so the buff radius covers your main damage dealers.

The kit rewards long maps with steady wave density because the buff stacks compound over time. On short maps with quick resets, the stacks reset between rounds and the unit feels underwhelming. The evolution branch into Sloppy Prime+Overdrive is the recommended path because the burst window syncs with the buff cap.

Frostborn Slop — The Crowd Controller

Frostborn Slop brings a hard slow that no current Rare unit can match, and the 30% attack-speed reduction it applies to enemies in its splash radius opens up placement options on maps that lack natural chokepoints. It is not a damage dealer on its own, but it makes every other unit on the field perform noticeably better.

The unit shines on the backrooms-style maps with open lanes because the slow gives your snipers time to land crit shots. Pair it with a Puddle Sniper in the backline and the combo handles boss waves without a dedicated tank.

Glitch Knight — The Map Breaker

Glitch Knight teleports to a random enemy every eight seconds and deletes the target with a burst hit. The teleport ignores line of sight, which means it can clean up leaks that spawn behind your frontline. It is the first Legendary added since launch and the pull rate is intentionally brutal at 0.5%, so plan your summon budget around the banner rather than hoping for an off-banner miracle.

The eight-second cooldown between teleports is a real liability against sustained trash waves, since Glitch Knight will simply stand idle while fodder enemies slip past your front line toward the leak zone. Plan your macro around the burst window by pairing it with high DPS chokepoint units — Cannons or Frost Towers work well — that can hold the lane during downtime, and front-load your strongest summons right before the cooldown ends so the teleport deletion lands on a priority target rather than a trash mob. Treat Glitch Knight as a finisher for tanky mini-bosses and grouped elites, not a primary DPS carry.

Strategy Tips for Building Around the New Roster

Adding new units to a defense grid only works if the rest of your formation supports their kit. The tips below come from the current meta and assume you have at least one MAX unit on the field when you start integrating the new additions.

• Anchor new ranged units behind an existing tank rather than placing them at max range on an open lane. The early waves will leak through until you build up enough DPS to handle the gap.

• Save duplicate pulls of event units for evolution fodder instead of upgrading them past Tier 3. The evolution bonuses outperform raw upgrade levels for event units because they unlock after the banner closes.

• Run a dual-splash setup with Goo Cannon and Frostborn Slop on corner tiles. The slow + AoE combo handles the mid-game wave density that single-target builds struggle with.

• Hold one summon slot per banner for the 1% Hero pull. Even if you do not land the rate-up unit, the pity counter carries forward and the next Hero becomes statistically more likely.

• Check the unit's role tag before committing to a Tier 4 upgrade. Support units scale worse than DPS units at the top tier, so you usually want them at Tier 3 with a strong frontline carry.

For a deeper dive into map-specific placement and how the new units interact with each map's layout, the all maps guide covers the lane geometry you need to plan around. The best compositions change significantly between linear maps and backrooms-style open arenas, and the new ranged units benefit more from the open layouts than the tight corridors.

Frequently Asked Questions

How often do new units release in Slop Tower Defense?

The developer ships a new unit every two to three weeks on average, alternating between permanent additions and limited-time event units. Major patches like the September 2026 drop add two or three units at once, while smaller content updates add a single unit tied to a weekend event.

What is the fastest way to upgrade new units?

Focus your Slop Essence farming on the highest-difficulty wave you can clear consistently, then spend the gold on the unit you actually use in your main composition. Skipping intermediate upgrades and going straight to Tier 3 is often the most cost-efficient path for new accounts.

Can I evolve event units after their banner ends?

Yes, the evolution menu stays available for any unit you own, but you can no longer pull additional copies once the banner closes. That makes the duplicates you pull during the banner window your only chance to reach Evo II or the shiny variant, so plan your summon budget carefully.

Are shiny variants worth the duplicate cost?

For DPS units, yes, the 15% stat boost is meaningful and the visual glow helps you track placement during dense builds. For support units, the stat boost is less impactful and you are usually better off spending the duplicates on a different evolution target.

What is the best new unit for solo players?

Sloppy Prime is the strongest solo carry right now because its self-sufficient hybrid kit means you do not need a fully optimized frontline to clear mid-difficulty content. It carries harder than any other Hero unit currently in the pool, and the buff aura gives low-rarity allies a free power spike while you build toward a Legendary pull.