Ever since its introduction to the gaming world, ‘All Star Tower Defense X’ (ASTDX) has become one of the talked-about tower defence games on Roblox. The game, built around fan-favourite anime-inspired units and high-stakes strategy gameplay, offers its players the chance to summon their favourite powerful characters and enhance them with traits and skill orbs, defending against enemies across diverse maps. Now, with its latest July 2025 update, check out what the best units and traits to use in the game.

Best ASTDX Units to use right now

At its launch, ASTDX offers around 24 playable units, but not all of them are created with equal potential. If you are aiming towards dominating the game, your top picks will be S-tier units like ‘Freiren’, ‘Sakuna’, and ‘Super God Koku’. These characters are packed with the most explosive potential, be it through power, a wide range, and reliable abilities that make surviving the game much easier. 

Next come the A-tier units such as ‘Onwin’, ‘Airren’, ‘Zaruto’ (Sage), ‘Venus’, and ‘Ruffy’ (Lobby). All of these units are strong options, and they offer versatility in various models and maps. These are followed by mid-tier, or the B-tier characters such as ‘Gen’, ‘Borul’, and ‘Janji’. These units are a great option for newer players who are still building their teams.

Characters in the C-tier and below, including ‘Koku’, ‘Zio Brundo’, ‘Captain’, and ‘Ice Queen’, often lack the range or damage needed to keep up in more challenging waves. However, for players pushing into stages of higher difficulties, you need to prioritise S and A-tier units.

Know about the traits, and why they are just as important as units

For the uninitiated, traits in ASTDX are some passive upgrades that can not only unlock unique bonuses but also enhance specific stats. After the July 2025 update, the top tiers have some rare but incredibly powerful traits such as ‘All Star’, ‘Genesis’, and ‘Tempest’, all of which offer boosts in true damage, special moves, and area-of-effect potential.

Other than these, some A-tier traits, such as ‘Bloodlust’ and ‘Companion,’ also provide great support. Even if you are only rolling common traits, such as ‘Tank’ or ‘Dexterity’, they can play a huge role in making or breaking a run. With these traits, all you might need is a simple +50% durability in an otherwise overwhelming round.

How to unlock the hidden potential of units with Skill Trees

To power up your units further, ASTDX lets you upgrade through three Skill Trees: ‘Damage’, ‘Range’, and ‘Speed’. Each unit can only follow one tree, but doing so unlocks unique skills and stat boosts. You will also need to collect ‘Skill Orbs’ by playing Challenge Mode.

How to claim free gems and perls with ASTDX codes?

Given the complexity of the game as it progresses, seasoned players of ASTDX will agree that it can be tough to proceed without enough gems or materials. But don’t worry, the game has your back. For the unversed, ASTDX often drops codes to assist players. As of July 2025, players can use active codes, such as ‘SOMANYLIKES’ and ‘SOMANYLIKES’, to get access to free gems, trait burners, summon tickets, and skill orb bags. These can be redeemed instantly by clicking the Twitter bird icon in-game and entering the code.

Final Takeaway

With the latest updates, ‘All Star Tower Defense X’ is more than just summoning the strongest units, but building smart traits, thoughtful team comps, and maximising every upgrade. With the right units, traits, and a little help from free codes, you can build an unstoppable lineup and cement your place as a tower defence legend.

What are your thoughts on the latest update of ‘All Star Tower Defense X’?

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