Rokoala
Undertale Multiverse Simulator 1.5

Undertale Multiverse Simulator 1.5

by SlayerRealNotFake · Action · Battlegrounds & Fighting

Player count trend, all-time peak, parent safety rating, and similar games — Undertale Multiverse Simulator 1.5 on Roblox, updated every three hours.

▶Play on Roblox Free to play · Roblox account required
Not enough history yet · Actively updated

We have only been tracking Undertale Multiverse Simulator 1.5 for 4 days, which is not long enough to call a trend. It has around 836 players in game right now.

Measured from 4 days of our own readings: the median daily peak of the last week against the median of the weeks before it. Daily peaks are compared on both sides so the day/night swing cannot look like a trend, and a multi-week baseline is used so one event week cannot.

Latest playing

836

▼ 7% since last reading

All-time peak

936

Aug 20, 2026

Total visits

1.8M

lifetime

Approval

89.1%

Roblox rating

Player count over time

Concurrent players for Undertale Multiverse Simulator 1.5, from our tracking. The line fills in as we take more readings.

657 737 816 896 976 936 Aug 19Aug 23Aug 26Aug 29Sep 2Sep 5

9 readings taken every 3 hours since August 19, 2026. Readings older than two weeks are shown as one point per day, at that day's high.

Is Undertale Multiverse Simulator 1.5 safe for kids?

Roblox publishes a content rating for every experience, based on a questionnaire its developer must complete. This is Undertale Multiverse Simulator 1.5's, unedited.

9+ Mild content Roblox's own rating
  • • Blood — heavy, unrealistic Blood is shown. Roblox rates whether it is stylised or realistic.
  • • Violence — repeated, mild Contains fighting or combat. Roblox rates how often it happens and how realistic it looks.
Multiplayer
Up to 15 players per server, so your child plays alongside strangers.
In-game purchases
Like nearly every Roblox experience, items and perks are sold for Robux. A spending PIN in Roblox account settings blocks surprise purchases.

Chat, friend requests, and spending are controlled in Roblox account settings, not per game. Ratings come from Roblox's experience guidelines API and refresh automatically.

What is Undertale Multiverse Simulator 1.5?

Undertale Multiverse Simulator 1.5 is a Roblox experience by SlayerRealNotFake that we track automatically, with 9 player-count readings recorded over the past 22 days. Like other Roblox games, it costs nothing to play, and you need only a Roblox account to jump in. Developers sell cosmetics, passes, and in-game perks via Robux, while the core game stays free.

Undertale Multiverse Simulator 1.5 — frequently asked

Is Undertale Multiverse Simulator 1.5 dying?
We have only been tracking Undertale Multiverse Simulator 1.5 for 4 days, which is not long enough to call a trend. It has around 836 players in game right now.
How many people play Undertale Multiverse Simulator 1.5 right now?
Undertale Multiverse Simulator 1.5 has around 836 players in-game. Its tracked peak is 936 concurrent players.
Is Undertale Multiverse Simulator 1.5 safe for kids?
Roblox rates Undertale Multiverse Simulator 1.5 as Mild content, suitable for ages 9+. It is flagged for blood, violence. Servers hold up to 15 players, so your child plays alongside people you do not know. As with any Roblox experience, chat settings and a spending PIN are set in Roblox account settings, not in the game.
What is the peak player count for Undertale Multiverse Simulator 1.5?
The highest concurrent player count we've recorded for Undertale Multiverse Simulator 1.5 is 936, set on August 20, 2026. Roblox doesn't publish an official all-time peak, so this is the high point from our own tracking.
Is Undertale Multiverse Simulator 1.5 still being updated?
Undertale Multiverse Simulator 1.5 was last updated 6 days ago (September 5, 2026). The developer is shipping changes regularly.
Is Undertale Multiverse Simulator 1.5 popular?
Undertale Multiverse Simulator 1.5 is more played than 14% of the 539 Roblox games we track, and holds a 89.1% approval rating.
What games are similar to Undertale Multiverse Simulator 1.5?
Gohan 悟飯, Stand Upright: Rebooted, Hood Customs, Sakura Stand — all action · battlegrounds & fighting games on Roblox. Each is tracked on Rokoala with its own live player count.
Is Undertale Multiverse Simulator 1.5 free to play?
Yes. Like other Roblox experiences, Undertale Multiverse Simulator 1.5 costs nothing to play, and you need only a Roblox account. Developers sell some cosmetics, passes, and perks in-game via Robux.

Roblox games like Undertale Multiverse Simulator 1.5

Other action · battlegrounds & fighting games on Roblox, closest in size to Undertale Multiverse Simulator 1.5, each with its own live player count.

Gohan 悟飯 922 players at peak · Battlegrounds & Fighting Stand Upright: Rebooted 1.1K players at peak · Battlegrounds & Fighting Hood Customs 606 players at peak · Battlegrounds & Fighting Sakura Stand 1.3K players at peak · Battlegrounds & Fighting Undertale: Last Corridor 589 players at peak · Battlegrounds & Fighting Murderers vs. Sheriffs 1.3K players at peak · Battlegrounds & Fighting