You can get Skin Crates in Universal Tower Defense Z by buying them from the Summer Event Shop with Summer Currency or purchasing them directly from the Crate Shop with Gems.
KEY!Skin Crates are tied to skins for your units, so the right method depends on what you have more of right now: Summer Currency or Gems. If you are already playing the Summer Event, the event shop route gives you crate progress alongside other event rewards; if you want openings fast, Gems are the direct route.
Skin Crate methods in Universal Tower Defense Z
| Method | Best for |
|---|---|
| Summer Event Shop with Summer Currency | Players already grinding the Summer Event and collecting event rewards |
| Crate Shop with Gems | Players who want to open more crates quickly |
There are two main routes for getting Skin Crates. Use the Summer Event Shop when you are actively farming the event, and use the Crate Shop when you have Gems ready to spend.
Buy Skin Crates from the Summer Event Shop
The Summer Event Shop method is the better fit when your playtime is already going into the event. You build up Summer Currency first, then turn that currency into Skin Crates from the event shop.
Play the Summer Event

Run the Summer Event to earn Summer Currency.
Collect enough Summer Currency

Keep farming until you have the amount needed for the Skin Crate you want.
Open the Summer Event Shop

Go to the event shop once you are ready to spend your event currency.
Buy Skin Crates

Use Summer Currency in the Summer Event Shop to purchase Skin Crates.
Farm the Summer Event first if you want Skin Crates without spending Gems, especially while you are still chasing other event rewards.
Purchase Skin Crates with Gems
The Gem route is for players who already have currency saved and want faster crate openings. Instead of farming Summer Currency first, you go straight to the Crate Shop and buy Skin Crates there.
Save enough Gems

Make sure you have enough Gems for the Skin Crate purchase.
Open the Crate Shop

Head to the Crate Shop from the game menu.
Purchase Skin Crates

Spend Gems to buy Skin Crates directly.
Open your crates

Roll the crates to start collecting skins for your units.
Skin Crates unlock unit skins

Skin Crates are for alternate cosmetic appearances on units. They are not the same thing as unlocking new units, so treat them as a way to customize units you already use rather than a path to expanding your roster.
Some skins are tied to specific crate types or event periods, so the main choice is whether you want to spend event currency while it is available or use Gems for faster access.
Crate names and prices can shift
Update 4.0-era crate categories included Contest Skin Crate, Summer Skin Crate, and Premium Skin Crate. Older menus also listed a Contest Skin Crate at 15,000 Gems and placed Premium Skin Crates behind Robux, with better Epic and Legendary odds.
For the current Night Raid-era build, check the in-game shop before spending, because the live crate lineup, prices, and odds can change between updates.
Frequently Asked Questions
Can you get Skin Crates for free?
Yes. The Summer Event route uses Summer Currency earned by playing the event, so it is the free-to-play path when the event shop is available.
Where do you buy Skin Crates with Gems?
Buy them from the Crate Shop. This is the direct Gem-spending option for players who do not want to wait on event farming.
Are Summer Skin Crates the same as Summer Capsules?
No. Summer Skin Crates are for skins, while Summer Capsules have been tied to exclusive seasonal units such as Ash and Valkyrie and Asura and Wrath.
Do Skin Crates unlock units or only skins?
They unlock skins for units. If you want new units, look at unit banners, capsules, events, or other unit-specific systems instead.
What is the fastest way to get more Skin Crates?
The fastest route is spending Gems in the Crate Shop, as long as you already have enough Gems saved for multiple purchases.
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