Undertale Adventures X Hub
Undertale Adventures X guides: working codes, 76 units by rarity, a tier list, traits and rerolls, Souls and Gold farming, every zone and gamepass prices.
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Undertale Adventures X is a Roblox tower defense game built on Undertale characters, developed by Side Productions. You summon Units with Souls, build a team across damage, support, economy and coverage roles, and defend a base through six areas — Ruins, Snowdin, Waterfall, Hotland, CORE and The Judgement Hall — each with six Acts on a Neutral and a Genocide route. Units span six rarity bands from Common to Secret, traits are rolled in the lobby's Upgrades facility, and the lobby adds Raids, Gauntlet, Challenges, Infinite Mode, an AFK Chamber and a Trading Hub. The game was formerly named Undertale Adventures TD and has passed 18.7 million visits since its 2024 launch.
Featured Guides (Undertale Adventures X)
Guides & Database & Tools
View All Guides →Undertale Adventures X Raids and Gauntlet
Undertale Adventures X side modes explained: Raids, Gauntlet tokens, the AFK Chamber, daily and 30-minute Challenges, Infinite Mode and Trading Hub.
Undertale Adventures X Souls and Gold Guide
How to earn Souls, Gold, XP and Underpass XP in Undertale Adventures X, the exact rewards per Act, and the fastest early farming loop.
Undertale Adventures TD vs X: What Changed
Undertale Adventures TD is now Undertale Adventures X. What the rename means for old codes, guides and searches, and what is actually confirmed.
Undertale Adventures X Tier List: S to C
No official tier list or stat blocks exist, so units are ranked by the six rarity bands, role and October 2026 consensus. Mythical and Secret picks, plus traps.
Undertale Adventures X Traits and Rerolls
How traits work in Undertale Adventures X: where to roll them, which roles want which buffs, when to reroll and how codes hand you free rerolls.
Undertale Adventures X Units List
Every Undertale Adventures X unit we could verify, sorted into all six rarity tiers from Common to Secret, plus how summoning and duplicates work.
Undertale Adventures X Zones and Acts
All seven Undertale Adventures X areas in order, with the Act structure, Neutral and Genocide routes, area damage bonuses and the Corridor boss gimmicks.