Universal Tower Defense Item | UTD Codes
Category overview
Items are mostly evolution fragments used to upgrade units. This page focuses on the eight fragment entries, how to obtain them, and a quick map-based farming reference.
Quick takeaways
- All eight fragments are evolution materials; Universal Fragment works across every evolution path.
- Legend Stages in Story Mode are the main farm routes, and higher difficulty modifiers improve drop odds.
- Gold Merchant stock is limited and refreshes every 24 hours; inventory rotates but Universal Fragment is consistently listed.
- Virtual Shop trades Virtual Tokens earned in Virtual Realm and has unlimited stock (fragments cost 4 tokens, Universal Fragment costs 20).
- Daily/weekly challenges can award fragments; standard fragments are higher odds than Universal Fragment (about 20% vs 10%).
Items table
| Entry | Description |
|---|---|
Burning Fragment | Flame-tuned shard used for Admiral, Spade, and Cyborg evolutions. |
Frozen Fragment | Ice fragment required when evolving Kriatru and Cyborg. |
Holy Fragment | Light-aligned shard tied to Berserker's evolution. |
Ocean Fragment | Sea-charged fragment used by Shunks, Admiral, and Spade. |
Petal Fragment | Nature shard used for Psycho and Shunks evolutions. |
Phantom Fragment | Shadowy fragment used to evolve Sasuku and Berserker. |
Sky Fragment | Sky-aligned fragment used for Psycho and Shakumira. |
Universal Fragment | Core fragment required by every evolution path. |
Evolution targets by fragment
| Fragment | Evolves |
|---|---|
| Burning Fragment | Admiral, Spade, Cyborg |
| Frozen Fragment | Kriatru, Cyborg |
| Holy Fragment | Berserker |
| Ocean Fragment | Shunks, Admiral, Spade |
| Petal Fragment | Psycho, Shunks |
| Phantom Fragment | Sasuku, Berserker |
| Sky Fragment | Psycho, Shakumira |
| Universal Fragment | All evolutions |
Acquisition methods
Story Mode (Legend Stages)
Each fragment has specific Story Mode Legend Stages where it can drop. Farming on higher difficulty modifiers improves your odds.
Gold Merchant
Gold Merchant inventory is limited and refreshes every 24 hours. The stock rotates each refresh, with Universal Fragment always present.
Virtual Shop
Virtual Shop uses Virtual Tokens earned in the Virtual Realm. Stock is unlimited. Standard fragments cost 4 tokens; Universal Fragment costs 20 tokens.
Challenges
Daily and weekly challenges can drop fragments. Standard fragments list roughly 20% drop odds, while Universal Fragment is closer to 10%.
Drop map quick reference (Legend Stages)
| Map | Stage 1 | Stage 2 | Stage 3 |
|---|---|---|---|
| Ninja Forest | Burning, Petal | Frozen, Sky | Petal, Sky |
| Marine Base | Burning, Ocean | Burning, Ocean | Ocean, Petal |
| Hollowed Moon | Burning, Holy | Frozen, Phantom | Holy, Phantom |
Universal Fragment spotlight
Universal Fragment is the core evolution ingredient and has multiple acquisition paths:
- Crafting NPC in Prison: combine 1 each of Petal, Ocean, Burning, Holy, Sky, Phantom, and Frozen fragments.
- Store bundle: part of the Ascension bundle (1499 Robux).
- Gold Merchant: limited stock on a 24-hour refresh (5000 Gold).
- Virtual Shop: unlimited stock for 20 tokens.
- Challenges: daily/weekly drops at about a 10% chance.
Additional materials (community list)
Community item lists also mention extra evolution materials. Rates can shift per update, so verify in-game when possible.
| Material | Evolution uses | Where to get (summary) |
|---|---|---|
| Slime Sword | Shadow (Atomic), Jingliu (Awakened) | Hidden Sand Village story acts; ~5% on Easy, ~10% on Hard; drops 1-2. |
| Rune | Johe (B-Rank), Blade (Enhanced), Jinwoo (Monarch) | Hidden Sand Village bosses on Infinite; ~15% chance; drops 1-4. |
| Key | Jinwoo (Monarch) | Hidden Sand Village bosses on Infinite; ~10% chance; can also drop in Virtual Realms. |
| Eye | Gojo (Honored) | Hidden Sand Village bosses in Virtual Realms at a low chance. |
| Demon Lord Seed | Rimura (Demon Lord) | Hollowed Moon; ~50% on Easy, 100% on Act 3 Hard+. |
Burning Fragment
Frozen Fragment
Holy Fragment
Ocean Fragment
Petal Fragment
Phantom Fragment
Sky Fragment
Universal Fragment