[🎉RELEASE🎉] Undertale Adventures X roster | [🎉RELEASE🎉] Undertale Adventures X Wiki

Player wiki for [🎉RELEASE🎉] Undertale Adventures X on Roblox: codes, the 12 listed traits, unit roles, regions, and the first-match loop.

By [🎉RELEASE🎉] Undertale Adventures X WikiLast updated: 2026-10-13

What is on the [🎉RELEASE🎉] Undertale Adventures X roster?

This table is the wall. Letter grades live on the tier list. Use the class picker if you want a buy-order instead of names.

[🎉RELEASE🎉] Undertale Adventures X roster
Entry	Hub	Notes
Sans	Units	Reported top-band area damage and crowd control.
Asriel	Units	Reported area damage that lineups use on packs and bosses.
Mettaton NEO	Units	Reported best single-target unit for bosses.
Undyne the Undying	Units	Reported front-line tank that also deals damage.
Papyrus	Units	Snowdin ultra rare, and a reported endgame crowd-control unit.
Asgore	Units	Reported melee tank and the named Undyne substitute.
Muffet	Units	Reported slow for grouped enemies.
Mettaton EX	Units	Reported area damage for packed waves.
Temmie	Units	High early damage that lineups say does not scale defensively.
Greater Dog	Units	Snowdin super rare used as a low-damage tank.
Froggit	Units	Early Ruins unit that later lineups say to replace.
Migosp	Units	Early Ruins unit that later lineups say to replace.
Loox	Units	Early Ruins unit with a 2024 anniversary party skin.
Snowdrake	Units	Snowdin rare that could evolve with Chill Glasses in 2024.
Ice Cap	Units	Snowdin common that later notes say falls off.
Jerry	Units	Distraction unit from 2024 Gauntlet notes, later filed with early units.
Moldsmal	Units	Named among early units that published lineups say to replace.
Flowey	Units	2024 ground unit that scaled with upgrades. Not in the 2026 lineup table.
Doggo	Units	Snowdin common from the August 2024 banner.
Dogamy	Units	Snowdin rare from the August 2024 banner.
Dogaressa	Units	Snowdin rare from the August 2024 banner.
Lesser Dog	Units	Snowdin super rare from the August 2024 banner.
Grillby	Units	2024 Snowdin drop described as a money unit.
Dust Sans	Units	Several 2024 event forms, not one confirmed 2026 unit.
Prestige Sansta	Units	Christmas unit shown in a January 2026 upload.
Frisk	Units	Underpass form in 2024, and a support grade in a July 2025 ranking only.

FAQ

[🎉RELEASE🎉] Undertale Adventures X roster questions

What is Undertale Adventures X?

It is a free Roblox tower defense experience by Side Productions. You defend a base with Undertale-inspired units, level those units, and strengthen them with traits. The experience was created on July 16, 2024, and the public record was updated on October 12, 2026.

Is Undertale Adventures X free?

The Roblox listing has no paid entry price. Optional Robux gamepasses exist. Known names include VIP, SHINY Hunter!, Supporter, +50% Tokens, and 2x XP. Current Robux prices were not on the public listing text used here.

Who makes the game?

Side Productions, the verified Roblox community that owns the experience. The community page is linked from the game listing.

How do codes work?

Open the Codes button on the right side of the screen, enter the full string, and press Enter or Redeem. Only 2KCCU! and FREESTUFF! were still reported working in October 2026, and both rewards were described only as freebies.

Do trait rates still match the old table?

Trait rerolls assign one of 12 listed traits. The rate table matches an August 2024 odds screen for Royal Guard Soul at 15%, and a November 29, 2024 video described the Perseverance buff the table now shows. Read the percent in your own Traits menu before you spend a large stack of rerolls.

What is on the [🎉RELEASE🎉] Undertale Adventures X roster?

[🎉RELEASE🎉] Undertale Adventures X roster questions

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See also