Universal Tower Defense Achievements Guide, All List and How to Complete Them

Progressing in Universal Tower Defense is not only about summoning strong units. The game also rewards active players through an achievement system that hands out free gems, trait rerolls, and special items just for playing.

If you focus on completing these tasks early, you can grow your account much faster without spending extra resources. This guide explains all achievements in Universal Tower Defense, what they mean, and how to finish them efficiently. Also check out our Universal Tower Defense Codes & Tier List for more rewards!

How to Check Achievements in Universal Tower Defense

You can view all achievements directly in-game.

• Click the Achievements tab on the left side of the screen
• Browse Story, Progression, and Unit categories
• Track your progress and claim rewards instantly

Checking this menu regularly helps you avoid missing easy rewards.

Story Achievements

Story achievements are unlocked by clearing specific worlds on Easy difficulty. These are some of the first achievements most players will complete.

Ninja

• Requirement: Clear Ninja Forest on Easy mode

Rewards:

• Clay Owl
• 500 Gems
• 5 Trait Rerolls

Pirate Rookie

• Requirement: Clear Marine Base on Easy mode

Rewards:

• 500 Gems
• 5 Trait Rerolls

Hollow

• Requirement: Clear Hollowed Moon on Easy mode

Rewards:

• 500 Gems
• 5 Trait Rerolls

These achievements are very beginner-friendly and should be completed as soon as possible.

Progression Achievements

Progression achievements track your long-term activity and will unlock naturally as you play the game.

Traveller I

• Clear any stage 20 times

Rewards:

• 500 Gems
• 5 Trait Rerolls

Trait Hunter I

• Roll a Mythic trait

Reward:

• 500 Gems

Geared Up I

• Upgrade any relic to level 5

Reward:

• 500 Gems

Rich I

• Collect a total of 10,000 coins

Reward:

• 500 Gems

Grinding I

• Defeat 1,000 enemies in total

Reward:

• 500 Gems

Progression Milestones

These do not count toward achievement completion, but the rewards are still strong.

True Monarch

• Get a double Ruler trait on any unit

Reward:

• 20 Trait Rerolls

One Above All

• Obtain the Ruler trait on a Secret unit

Reward:

• 500 Gems

These milestones are more advanced and usually completed later in the game.

Unit-Based Achievements

This category focuses on summoning, upgrading, and improving your units.

Summoner I

• Summon 100 units

Rewards:

• 500 Gems
• 10 Trait Rerolls

Unit Milestones

These milestones are tied to rare summons and high-level upgrades.

Ooh, Shiny

• Summon one Shiny Mythic unit or higher

Reward:

• 500 Gems

Perfection

• Upgrade a unit so all stats reach S rank or higher

Rewards:

• 1,000 Gems
• 20 Trait Rerolls

Covered in Secrecy

• Summon your first Secret unit

Rewards:

• 1,000 Gems
• 20 Trait Rerolls

Best Tips for Completing Achievements Faster

• Finish Story achievements early for quick gems
• Farm stages repeatedly to clear progression goals
• Upgrade at least one relic to level 5 as soon as possible
• Save trait rerolls until you start chasing milestones
• Combine achievements with daily grinding to save time

Understanding Achievements vs Milestones

Universal Tower Defense has two different reward systems that often get confused:

• Achievements count toward your total completion progress. These are permanent goals tied to story stages, progression, and gameplay actions.
• Milestones also give rewards, but they do not increase your achievement completion count. Even so, milestones are still very valuable and should not be ignored.

Both systems give gems and trait rerolls, so completing them is always worth your time.

Achievements in Universal Tower Defense are one of the best sources of free gems and trait rerolls. Many of them unlock naturally just by playing, while others reward careful planning and smart upgrades. Focus on easy achievements first, then slowly work toward milestones as your account grows stronger. By paying attention to the achievement system, you can progress faster and build better teams without wasting resources.