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About the channel
Please read the disclaimers below. Welcome! "Undertale Lost Content Archive" is an ever-growing group dedicated to archiving tons of extremely obscure content developed by Toby Fox, with most of it being from Undertale and Deltarune. We're accepting submissions if they're good enough — send an e-mail to us with your brand new Lost Content! ~ DISCLAIMERS ~ - None of the videos posted on this channel are of real "leaks" or beta footage. All of them are fanmade, whether they were programmed or animated, by our small team, and made for fun. - Some of the videos rely on shocking content that may not be suitable for all viewers.
Latest videos
UNDERTALE - Cancelled "Timed" Demo
21.36K views · 07/06/2026
Bug Report 2
81.02K views · 05/24/2026
Gaster's Theme (10th Anniversary Build) - UNDERTALE
21.21K views · 05/13/2026
Little One - LIMPTALE
63.08K views · 05/06/2026
LIMPTALE - Waterfald Baby
98.48K views · 05/03/2026
UNDERTALE - V1.001 Unused Cutscene
21.82K views · 04/25/2026
Latest Shorts
![Thumbnail: [lost content] — Obscure #undertale Bug](/images/creators/short/lostundertale/0.webp?v=rT8vkP7rVCQ)
[lost content] — Obscure #undertale Bug
41.34K views · 07/15/2026
![Thumbnail: [lost content] — Cancelled #undertale Timed Demo #funny](/images/creators/short/lostundertale/1.webp?v=pge6gop-Pj4)
[lost content] — Cancelled #undertale Timed Demo #funny
23.66K views · 07/12/2026
![Thumbnail: [lost content] — #undertale Scrapped Character #funny](/images/creators/short/lostundertale/2.webp?v=TZHikQsUnxo)
[lost content] — #undertale Scrapped Character #funny
15.99K views · 05/26/2026
![Thumbnail: [lost content] — This is #undertale #sans #funny](/images/creators/short/lostundertale/3.webp?v=r8wkeF3rn3U)
[lost content] — This is #undertale #sans #funny
29.25K views · 05/25/2026
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