Are you the developer of [Halloween] Undertale Multiverse Simulator 1.5? Claim it to unlock player history and creator tools.

[Halloween] Undertale Multiverse Simulator 1.5

[Halloween] Undertale Multiverse Simulator 1.5 has 472 players in game (RBLXDB reading, 13:05 UTC). Its universe ID is 10202515720 and its place ID is 112050560592995. RBLXDB ranks it #2,088 of the 4,158 games we track. It is currently declining — down 47% across our readings since 2026-09-03.

▶ Play [Halloween] Undertale Multiverse Simulator 1.5 now ☆ Follow

by SlayerRealNotFake473 playing now3,377,479 visits6,087 favouritesAll

48224h peak

23.8 minAvg session

[Halloween] Undertale Multiverse Simulator 1.5 in the RBLXDB database

#2,088RBLXDB rank by players

#1,792in Battlegrounds & Fighting (of 234)

5 moold

1dlast updated

20,978visits per day since launch

1.8favourites per 1,000 visits

Update activity

10 updates in the 73 days we have watched it · 2026-08-31

Full change history →

Renamed — 2026-09-02 · was “[True Dust] Undertale Multiverse Simulator 1.5”
New banner — 2026-09-02
Renamed — 2026-08-31 · was “Undertale Multiverse Simulator 1.5”
Renamed — 2026-08-23 · was “[1M Update] Undertale Multiverse Simulator 1.5”
Description rewritten — 2026-08-20

Game IDs

Universe ID

10202515720

Place ID

112050560592995

Join a [Halloween] Undertale Multiverse Simulator 1.5 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 Multiverse Simulator 1.5 is doing

88% of players like it3,112 up · 443 down

10 public servers sampled71% full~110 ms median ping

The 10 public servers we sampled were holding 106 players across 150 slots — 71% full. Servers this full fill matches fast but leave less room to land in the same one as a friend.

Player count trend

472 players · 13:00 UTC (latest reading)

13:0013:00

29 hourly readings. Ranged 288 to 482 players — a spread of 67.4%. The axis starts at 265, not zero, so the movement is visible; read the labels rather than the steepness.

Since 2026-09-03 our snapshots have moved from 894 to 472 concurrent players — down 422 (-47%) across 1200 readings taken every six hours.

About [Halloween] Undertale Multiverse Simulator 1.5

This game is continuation of Undertale Multiverse Simulator, game got hacked and after a year its back. Press R on PC to low health yourself Press Z on PC to use Emote Wheel Shiftlock for gamepads: X button

Official [Halloween] Undertale Multiverse Simulator 1.5 links

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

Discord ↗

What [Halloween] Undertale Multiverse Simulator 1.5 sells

n124,123,744 R$

Every game pass [Halloween] Undertale Multiverse Simulator 1.5 currently has on sale. Roblox takes 30% of each sale, so a 124,123,744 R$ pass leaves the developer about 86,886,620 R$. Work out any price with our Robux tax calculator.

How to get every badge in [Halloween] Undertale Multiverse Simulator 1.5

Pesti Sans DefeatedDefeat Pesti Sans to get this badgeMythic · under 0.1%
...Uncommon · 1.5%

Rarest first — the percentage is the share of players who have earned each badge, straight from Roblox. Anything rarer than a tenth of a percent is reported as "under 0.1%", because that is where Roblox stops counting.

[Halloween] Undertale Multiverse Simulator 1.5 questions

How many people play [Halloween] Undertale Multiverse Simulator 1.5?

Right now [Halloween] Undertale Multiverse Simulator 1.5 has 473 players in game, with 3,377,479 total visits all-time. The counter on this page refreshes automatically from the Roblox charts.

What is the game ID for [Halloween] Undertale Multiverse Simulator 1.5?

The universe ID is 10202515720 and the place ID is 112050560592995. 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 Multiverse Simulator 1.5?

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 Multiverse Simulator 1.5 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 Multiverse Simulator 1.5 player reviews

No player reviews yet. Be the first.

Player reviews load in a moment…

Games like [Halloween] Undertale Multiverse Simulator 1.5

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.

[🎃HALLOWEEN] Clicker Simulator! 🖱️ artwork

[🎃HALLOWEEN] Clicker Simulator! 🖱️411 playing

Also a simulator

Best Simulator311 playing

Also a simulator

[👻UPD5] Hoyoverse Gacha Simulator artwork

[👻UPD5] Hoyoverse Gacha Simulator406 playing

Also a simulator

🎃Giant Simulator: REBORN520 playing

Also a simulator

Merge & Dig Simulator!703 playing

Also a simulator

Thanos Simulator: Infinity Gauntlet (BETA) artwork

Thanos Simulator: Infinity Gauntlet (BETA)1,105 playing

Also a simulator

All games like [Halloween] Undertale Multiverse Simulator 1.5 →

Player counts and badges refresh automatically from the Roblox API. While you are in [Halloween] Undertale Multiverse Simulator 1.5, grab a working music ID for your boombox or browse more trending games.

Rarest badges → · Events calendar → · Live player stats → · Roblox promo codes → · Music IDs for your boombox →