61.3K playingVanguards: 2nd Anniversary
by Kitawari
2.1B visits97% liked
Undertale Adventures X
3,556 playing nowupdated
- Playing now
- 3,556
- Visits
- 18.3M18,256,108
- Favorites
- 39.2K39,158
- Likes
- 93%42.2K up · 3.2K down
- Server size
- 15players per server
- Created
- July 20242.3 years ago
- Updated
- Oct 16, 2026today
- Peak players
- 3,712seen since October 2026
About Undertale Adventures X
Undertale Adventures X is a tower defense game on Roblox made by Side Productions. 3,556 people were playing it at our last check, and it has 18.3M visits since it launched in July 2024.
93% of its 45.3K votes are likes, and 39.2K players have favorited it. Servers hold up to 15 players. It was updated today. Roblox files it under Strategy › Tower Defense.
UNDERTALE ADVENTURES X IS NOW LIVE · 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
From the game's Roblox description
Content maturity: Minimal
- Violence (Occasional/Mild)
Players, last 7 days
Hourly checks of Roblox's live player count.
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Undertale Adventures X FAQ
How many people are playing Undertale Adventures X right now?
3,556 people were playing Undertale Adventures X on Roblox at our last check (Oct 16, 22:00 UTC). It has 18,256,108 visits in total, and the most we've seen in it at once is 3,712.
Can you play Undertale Adventures X with friends?
Yes. Undertale Adventures X servers hold up to 15 players, so you can join a friend's server from their Roblox profile or invite them into yours.
Is Undertale Adventures X OK for kids?
Roblox rates Undertale Adventures X Minimal for content maturity, its lowest level, which Roblox rates suitable for all ages. Its label lists: Violence (Occasional/Mild). Parents can check the label on the game's Roblox page too.
Is Undertale Adventures X free to play?
Yes. Undertale Adventures X costs nothing to join on Roblox; like most Roblox games it can sell optional items with Robux.
Who made Undertale Adventures X?
Undertale Adventures X is made by Side Productions, a Roblox group (community) with a verified badge. It launched in July 2024 and was last updated on October 16, 2026.