Are you the developer of [🎃HALLOWEEN🎃] Undertale Adventures X? Claim it to unlock player history and creator tools.

[🎃HALLOWEEN🎃] Undertale Adventures X

[🎃HALLOWEEN🎃] Undertale Adventures X has 5,714 players in game (RBLXDB reading, 03:05 UTC). Its universe ID is 6272727021 and its place ID is 18512318831. RBLXDB ranks it #431 of the 3,914 games we track. It is currently growing — up 77% across our readings since 2026-10-15.

▶ Play [🎃HALLOWEEN🎃] Undertale Adventures X now Codes (8)☆ Follow

by Side Productions5,279 playing now20,374,126 visits43,818 favouritesAll

6,22124h peak

19.6 minAvg session

The last seven days

4,206Average players

4,181Typical (median)

7,3677-day peak

72/100Stability

[🎃HALLOWEEN🎃] Undertale Adventures X averaged 4,206 players an hour over the last seven days, 25% below the same day a week earlier. Its busiest reading was 7,367 and its typical hour 4,181. Stability 72/100 is simply 100 minus how much its player count varied (28%, standard deviation over the mean), across 184 hourly readings since 17 October.

[🎃HALLOWEEN🎃] Undertale Adventures X in the RBLXDB database

#431RBLXDB rank by players

#367in Tower Defense (of 104)

2.3 yrold

Todaylast updated

24,577visits per day since launch

2.2favourites per 1,000 visits

Game IDs

Universe ID

6272727021

Place ID

18512318831

Join a [🎃HALLOWEEN🎃] Undertale Adventures X server

Live public servers, straight from Roblox. Tap Join to drop into that exact server — you’ll need to be signed in to Roblox in this browser.

How [🎃HALLOWEEN🎃] Undertale Adventures X is doing

93% of players like it45,003 up · 3,446 down

Player count trend

5,714 players · 03:00 UTC (latest reading)

03:0003:00

26 hourly readings. Ranged 0 to 6,221 players. The axis starts at 0, not zero, so the movement is visible; read the labels rather than the steepness. Longer ranges unlock as history builds: we have 9.1 days so far.

Since 2026-10-15 our snapshots have moved from 3,225 to 5,714 concurrent players — up 2,489 (+77%) across 244 readings taken every six hours.

Working [🎃HALLOWEEN🎃] Undertale Adventures X codes

WINTER2025UnconfirmedFrom a public list. This game does not publish its codes anywhere we can read, so the only way it gets confirmed is a player telling us.Working
WELOVEUAPLAYERSUnconfirmedFrom a public list. This game does not publish its codes anywhere we can read, so the only way it gets confirmed is a player telling us.Working
SORRYAFTERTALEDELAYUnconfirmedFrom a public list. This game does not publish its codes anywhere we can read, so the only way it gets confirmed is a player telling us.Working
6KCCUREWARDUnconfirmedFrom a public list. This game does not publish its codes anywhere we can read, so the only way it gets confirmed is a player telling us.Working
5KCCUREWARDUnconfirmedFrom a public list. This game does not publish its codes anywhere we can read, so the only way it gets confirmed is a player telling us.Working
PREPAREFORHALLOWEENPlayer reported1 player reported it working. We have not verified it ourselves.Working
MOREFREESTUFFUnconfirmedFrom a public list. This game does not publish its codes anywhere we can read, so the only way it gets confirmed is a player telling us.Working
UPDATEJUNE10UnconfirmedFrom a public list. This game does not publish its codes anywhere we can read, so the only way it gets confirmed is a player telling us.Working

Expired

THANKYOUFORWAITINGExpired
UPDSEP25!Expired
THANKYOU10kMEMBERSExpired
HOTLANDS2025Expired
THANKYOU12MILLIONVISITSExpired
JUNE10UPDATEExpired
XMASUPDATE2025Expired

Codes are pulled from the game's own updates and reviewed before they appear here. A code flips to expired automatically when the developer removes it.

About [🎃HALLOWEEN🎃] Undertale Adventures X

🎉The Halloween update is now live! We hope you all enjoy!🎉 🏰A tower defense game based on Undertale 🗡️Defend your base from monsters using Undertale units 👻Level up your units and make them stronger with traits

Official [🎃HALLOWEEN🎃] Undertale Adventures X links

Straight from the developer’s own experience page — where codes and update news usually land first.

Discord ↗Roblox group ↗

What [🎃HALLOWEEN🎃] Undertale Adventures X sells

SupporterShow your support for UA for various rewards!: - 10% Summon Discount +15% Underpass XP - Title + Chat Tag200 R$
2x XP300 R$
VIP500 R$
+50% TokensRecieve 50% more currency in Raids mode500 R$
SHINY Hunter!1,000 R$

Every game pass [🎃HALLOWEEN🎃] Undertale Adventures X currently has on sale. Roblox takes 30% of each sale, so a 1,000 R$ pass leaves the developer about 700 R$. Work out any price with our Robux tax calculator.

[🎃HALLOWEEN🎃] Undertale Adventures X questions

How many people play [🎃HALLOWEEN🎃] Undertale Adventures X?

Right now [🎃HALLOWEEN🎃] Undertale Adventures X has 5,279 players in game, with 20,374,126 total visits all-time. The counter on this page refreshes automatically from the Roblox charts.

What is the game ID for [🎃HALLOWEEN🎃] Undertale Adventures X?

The universe ID is 6272727021 and the place ID is 18512318831. The place ID is what joins the game directly; the universe ID is what APIs and tools use.

How do I redeem codes in [🎃HALLOWEEN🎃] Undertale Adventures X?

Look for a codes, shop or Twitter-bird button in the game's menu, paste a code exactly and confirm. Codes on this page are pulled from the game's own updates and flip to expired automatically when the developer removes them.

Are the badges in [🎃HALLOWEEN🎃] Undertale Adventures X still obtainable?

Badge lists come straight from the Roblox API, so everything shown below exists in the game — though some badges are event-locked or retired by the developer. The badge description usually says how to earn it.

[🎃HALLOWEEN🎃] Undertale Adventures X player reviews

No player reviews yet. Be the first.

Player reviews load in a moment…

Games like [🎃HALLOWEEN🎃] Undertale Adventures X

Picked by what these games actually are — the kind of game, the studio behind it and how busy it is — not by Roblox’s genre label.

Re://Adventures [UPD 1 🔥 ]11,224 playing

[Halloween🎃] Anime RNG Defense2,721 playing

[KNIGHT + ASRIEL] UNDERTALE Fight! artwork

[KNIGHT + ASRIEL] UNDERTALE Fight!2,541 playing

UNDERTALE: Multiplayer396 playing

[M87] Undertale Multiverse Simulator 1.5 artwork

[M87] Undertale Multiverse Simulator 1.5393 playing

[ 🎃 UPD 0.75 x Halloween ] Anime Mysterious artwork

[ 🎃 UPD 0.75 x Halloween ] Anime Mysterious 8,561 playing

All games like [🎃HALLOWEEN🎃] Undertale Adventures X →

Player counts and badges refresh automatically from the Roblox API. While you are in [🎃HALLOWEEN🎃] Undertale Adventures X, grab a working music ID for your boombox or browse more trending games.

All [🎃HALLOWEEN🎃] Undertale Adventures X codes → · Rarest badges → · Events calendar → · Live player stats → · Roblox promo codes → · Music IDs for your boombox →