[WEEK 1.5] Undertale Timeline Corruption: TD

A Roblox experience owned by Undertale Timeline Corruption.

Tower defenseENtower-defenseundertalemultiverse

Undertale Timeline Corruption: TD is a tower-defense experience created on 2024-09-07. It has accumulated 31,309,219 lifetime visits and 23,596 favorites. Currently, 79 users are playing. The experience holds a 90% like percentage.

Description (written by the developer; not a statement by this register)

Welcome to Undertale Timeline Corruption TD! 🦴 Thumbnail by: Saku ⚡ The timelines are in danger! A mysterious force has caused the Undertale multiverse to collapse, bringing together heroes and villains from across different AUs! Summon powerful characters, defend the timelines, and embark on an epic journey to restore balance! ⚡ 🚀 Summon powerful units from Undertale and its AUs to fend off waves of enemies! 🔄 Level up & evolve your characters to unlock new abilities and dominate the battlefield! 🔥 Team up with friends in co-op mode or challenge yourself in intense battles across multiple timelines! 👁️‍🗨️ Face iconic bosses like WaterFall Dust., AfterTale Sans, Gaster and X!Gaster! Will you protect the timelines or watch them fall into chaos? The fate of the multiverse is in your hands! 🛠️ Game inspired by Undertale & its AUs. All credits go to Toby Fox and respective AU creators!

Last updated by the developer 10 Aug 2026, 15:26 UTC.

playing (measured 10 Aug 2026, 17:23 UTC)

31,309,219

lifetime visits

90%

liked (14,632 👍 / 1,601 👎)

24,395

favourites (0.8 per 1k visits)

7 September 2024

created (per Roblox)

Play on Roblox →

Live players over time

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every players count we have recorded
Measured (UTC)	Players	Change
10 Aug 2026, 17:23	64	first reading

Concurrent players at each of our measurements (insert-on-change).

Monetization — game passes

VIP

200 R$

Sudden Changes

200 R$

toby fox tower!

80 R$

Game passes for sale and their prices, measured from the Roblox passes API. Developer products bought inside the game aren’t publicly listable.

Badge funnel

🦴 Welcome to pre-beta! · welcome350,974 · 4.4% win

✞︎☜︎☼︎✡︎ ✞︎☜︎☼︎✡︎ ✋︎☠︎❄︎☜︎☼︎☜︎💧︎❄︎✋︎☠︎☝︎ · other90,051 · 1.3% win

Corruption... · other85,471 · 0.00% win

Hunger... · other84,130 · 0.00% win

Sudden Changes · other20,173 · 0.50% win

Evolution requires sacrifice. · other19,728 · 0.00% win

Toby Badge · other17,940 · 0.10% win

VIP Badge · other12,117 · 0.10% win

!?!?!?!? · other11,382 · 0.00% win

Happy Birthday Undertale! · other5,109 · 0.00% win

🦴 You've meet owner or co-owner! · other4,517 · 0.00% win

GOD · other360 · 0.00% win

??? · secret1 · 0.00% win

How many players have ever earned each badge — a proxy for how far players get before they stop. Steep drop-offs mark where a game loses people. Win rate is the past-day share of players who earned it; categories are assigned by a language model from each badge’s own name and description.

Roblox recommends these alongside it

[🎉RELEASE🎉] Undertale Adventures Xby Side Productions

5,237 playing

[🎃EVENT🎂] Alternate Universes TDby Kayoko AUTD

241 playing

[☔Tears In The Rain☔] Undertale: Timeline Collapseby kamilderboii

70 playing

[X3 EXP + UPDATE] Sans AUs Fighter 2by yuika shenanigans

551 playing

[Char Reworked!] UT: The Multiverse Killer [Beta]by Undertale : The Multiverse Killer Offical Group

95 playing

[FELL!SANS] Undertale: Last Corridorby Undertale: Last Corridor Official

145 playing

Roblox’s own “games like this” rail, as we recorded it on 17 October 2026. The order is Roblox’s, not ours. Which games it points at most →

Like ratio over time

Growth

7 measurements spanning 60 days. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 89–91 and does not start at zero.

Measurement log — every % liked count we have recorded
Measured (UTC)	% liked	Change
22 Oct 2026, 15:47	90	no change
12 Oct 2026, 15:46	90	no change
2 Oct 2026, 15:38	90	no change
22 Sept 2026, 15:37	90	no change
12 Sept 2026, 15:36	90	no change
2 Sept 2026, 15:33	90	no change
23 Aug 2026, 15:21	90	first reading

Percentage of votes that are likes, at each of our measurements. A falling line is a game losing its crowd’s goodwill.