[🎉RELEASE🎉] Undertale Adventures X Beginner Guide
A short path from the official listing to the first match, traits, codes, and roles. The full steps live in the linked guides.
A short path from the official listing to the first match, traits, codes, and roles. The full steps live in the linked guides.
By [🎉RELEASE🎉] Undertale Adventures X Wiki · Last updated:
First session
Open the official game — Play the Side Productions experience. The listing has no paid entry price, the server size is 15, and the record was updated on October 12, 2026 without patch notes.
Read the listing before you trust an older thumbnail — The experience was created on July 16, 2024. The current description is a tower defense game about Undertale units, levels, and traits.
Clear one stage — Learn the purse, the upgrades, and the difficulty names before you open the trait menu.
First defense — Separates listing facts from 2024 footage about money, Souls, and Pacifist, Neutral, and Genocide.
Spend rerolls on purpose — The current listing still tells you to strengthen units with traits. Check the rate on your screen against the 12-trait table.
Traits and rerolls — Rates, early souls worth keeping, and the separate stat-letter system.
Trait pages — One row per trait, with the listed chance and effect.
Try codes after the match works — Two strings were still reported working in October 2026. Older strings are archived, and three of them remain disputed.
Codes — Working pair, expired history, and the right-side Codes button.
Fill roles, then move regions — Cover clump damage, bosses, a front line, and crowd control. Then pick a region that matches the units you own.
Team roles — Substitutes when the five most named units are missing.
Regions and modes — Ruins through Core, plus Gauntlet and old events.
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.