Undertale Adventures X No Limited Units Guide: Clear It Without Banners

Limited units make Undertale Adventures X easier, but they are not the price of admission. If you started late, skipped a banner, or simply refuse to let a timer decide what your team looks like, this Undertale Adventures X no limited units guide was written for you. The goal is straightforward: build a squad you can actually obtain, then push it far enough that limited units stop feeling mandatory.

Undertale Adventures X is a Roblox tower defense game inspired by Undertale. Units are summoned with Souls, which you build up from Soul Fragments, and their performance can be pushed further with trait rerolls. That means most of your power comes from resources you can farm on your own schedule — not from one lucky pull. This Undertale Adventures X no limited units guide focuses entirely on that farmable path.

What Counts as a Limited Unit in Undertale Adventures X?

Limited units are the ones tied to a window: event banners, seasonal shop rotations, and anything that vanishes when the timer hits zero. Everything else is permanently obtainable, and that is the foundation of any Undertale Adventures X no limited units guide. Story rewards, the standard summon pool, and code rewards never disappear on you.

Community reports suggest event units often launch with flashier base stats. That is real, but base stats alone do not clear chapters. Placement, trait quality, and upgrade levels decide far more fights than raw rarity does — which is why a well-built free squad keeps working long after a banner ends.

The Free-to-Play Progression Loop, Step by Step

The loop in Undertale Adventures X is short, and repeating it efficiently matters more than any single decision. Here is the order that works, based on player experience across tower defense games of this style.

1. Clear story chapters first. Chapter rewards hand you units and currency without any summoning required. Push as far as you can before you start spending.
2. Convert Soul Fragments into Souls. Fragments are the raw material; Souls are what you actually summon with. Bank them instead of spending the moment you hit a round number.
3. Commit to three to five units. A focused core of upgraded units beats a wide bench of untouched ones every time.
4. Spend rerolls on your main damage dealer. Rerolls are the scarcest resource in this Undertale Adventures X no limited units guide, so they go to the unit carrying your run.
5. Farm the highest stage you clear consistently. If a stage fails half the time, drop back one and farm reliably.
6. Redeem codes the day they drop. Free Souls and rerolls are the fastest shortcut available to a free player.

Building a No-Limited-Units Squad

Rarity is a trap. Coverage is what actually wins. A squad made entirely of standard-pool and story units will clear content as long as it answers every problem the game throws at it: fast waves, grouped waves, tanky enemies, and single-target bosses.

If you are following this Undertale Adventures X no limited units guide strictly, aim for one unit per role before you chase duplicates or upgrades. A squad with holes will stall no matter how high its total power looks on paper.

Reroll and Upgrade Priorities

Trait rerolls are the difference between a free unit that limps and one that carries. The upgrades area is where you spend them, and the order you spend them in matters more than the number you have.

Do not reroll a unit you are about to replace. This is the single most common waste in Undertale Adventures X, and it is the reason so many free players feel stuck. Lock in your core first, then reroll aggressively.

Upgrades follow the same logic. Level your carry ahead of everyone else, then bring the rest of the team up to a floor that keeps them alive. Player experience consistently shows that one over-leveled unit plus four serviceable ones outperforms five mediocre units.

Free Resources, Codes, and Mistakes to Avoid

Codes are the biggest free boost available to anyone reading this Undertale Adventures X no limited units guide. They hand out Souls, trait rerolls, and special reward items at no cost, but they expire quickly — sometimes within hours. Check the latest Undertale Adventures X codes on GamesRadar before you start a farming session, since the active list changes often.

To redeem, open the Codes button in the main lobby, type the code into the box, and confirm with Enter on PC, A on Xbox, X on PlayStation, or a tap outside the box on mobile.

Mistakes that stall free-to-play progress

FAQ: Undertale Adventures X No Limited Units Guide

Can you actually clear Undertale Adventures X without limited units?

Yes. Limited units raise your ceiling, but they are not required to progress through the story. A squad built from story rewards, the standard summon pool, and code bonuses can clear chapters as long as it covers every role and your main carry is properly upgraded and rerolled.

What should I spend Souls on if I am not pulling on banners?

Summon from the standard pool until your core squad is complete, then stop and redirect everything into upgrades and trait rerolls. Souls spent on a permanent pool unit you will keep forever are worth more than Souls spent chasing a unit that disappears next week.

Which unit should I reroll first?

Your main damage dealer, without exception. Damage traits compound across every wave of a stage, so a strong roll on your carry lifts your entire run. Support units come second because their buffs scale the whole team.

Is this Undertale Adventures X no limited units guide still useful after new updates?

The specific unit names and code rewards change, but the loop does not: clear chapters, bank Soul Fragments, commit to a small core, and spend rerolls on your carry. Updates usually add new limited units rather than removing the free path, so the strategy stays relevant.

Free players are not locked out of Undertale Adventures X — they are just playing a slower, more deliberate version of it. Clear the story, build one unit per role, protect your rerolls, and redeem every code before it expires. Do that consistently and the limited units stop looking like a requirement and start looking like a luxury.