Toby Fox is marking Undertale’s anniversary with a slate of official livestreams, while also sharing a fresh update on Deltarune Chapter 5-signaling steady progress on the long-awaited follow-up. The announcements highlight the enduring pull of Undertale’s community nearly a decade on and offer a rare, timed look at what’s next for Deltarune. Together, the anniversary streams and development update set the stage for a celebratory return to a modern indie classic and a clearer runway toward the next chapter of Fox’s ambitious successor.
Undertale anniversary streams schedule platforms and viewing tips
Here’s how to tune in across major services as the celebration rolls out alongside the latest on DELTARUNE Chapter 5. The primary broadcast is expected on the official YouTube and Twitch channels, with mirrored watch-alongs by partner creators. Regional rehosts may appear on Niconico and Bilibili, while Steam Broadcast and Twitter/X Live are slated for short-form highlights. VODs typically go live shortly after each segment, though music-heavy portions may arrive later for rights checks. Co-streaming is generally welcomed; creators should review guidance shared in the stream description and enable VOD-safe audio if offered. For global audiences, blocks are clustered to hit primetime in the Americas and Europe, with an encore window in APAC.
- Primary feeds: Official YouTube and Twitch with multilingual captions where available; DVR may be enabled on YouTube for late joiners.
- Companion feeds: Partner co-streams featuring developer commentary recaps and accessibility-friendly overlays.
- Regional mirrors: Niconico/Bilibili rehosts announced day-of; expect slight delay for moderation and subtitle prep.
- VOD availability: Archive within hours; music or guest segments may be trimmed and restored later.
- Schedule blocks (subject to change): Opening retrospective, community highlights, developer Q&A, music set, and a DELTARUNE Chapter 5 progress update segment.
Make the most of the watch with a few practical tweaks. Set platform reminders and sync a Discord watch party using low-latency mode to minimize chat lag. If bandwidth is tight, cap playback at 720p60; for big-screen viewing, cast via Chromecast or AirPlay and enable dynamic range compression to balance speech and music. Activate auto-captions and check language tracks; when co-streaming, keep game audio under 70% and your mic above -14 LUFS to maintain clarity. Multi-view tools help track parallel panels, and a world clock converter can prevent missed segments as the schedule rolls through time zones.
- Latency and sync: Toggle “Low Latency” on Twitch; disable YouTube’s ultra-low latency if buffering spikes.
- Captioning: Turn on CC; adjust background opacity for readability during bright segments.
- Audio safety: Use VOD-safe mode if provided; check the segment rundown for potentially muted songs.
- Mobile data: Enable data saver and lock orientation; download VOD highlights on Wi‑Fi later.
- Notifications: Subscribe/follow and add calendar holds for each block to catch the DELTARUNE update live.
Developer guests charity partners and community segments to watch for
With anniversary programming coalescing, producers are teasing a balanced slate of developer perspectives and philanthropy. While final lineups remain under wraps, industry watchers should keep an eye on drop-ins from core Undertale creatives and long-time collaborators, as well as merch and charity partners that have historically supported fan-led marathons. Notables to watch include:
- Toby Fox – brief remarks, music anecdotes, or restrained Q&A on creative process.
- Temmie Chang – art spotlights, live sketch interludes, and asset breakdowns.
- Fangamer – limited-run merch tied to donation goals and milestone unlocks.
- Community localization leads – insights on translation challenges and accessibility nuances.
- Charity partners – groups commonly supported in this space (e.g., AbleGamers, Child’s Play), alongside potential matching sponsors.
Beyond headline interviews, the schedule is expected to lean into audience-favorite formats that bridge nostalgia with the latest notes on Deltarune Chapter 5’s trajectory. Segments likely to drive viewership include:
- Speedrun showcases – pacifist, no-hit, and glitch exhibitions with live commentary.
- Music performances – piano and chiptune sets interpreting signature themes.
- Art and sprite jams – community artists crafting scene studies in real time.
- Mod and tool spotlights – creators demoing workflows and safe-modding practices.
- Lore roundtables – spoiler-managed Q&A connecting Undertale threads to Deltarune’s current trajectory.
- Accessibility check-ins – captions, color profiles, and controller options evaluated with advocates.
Deltarune Chapter 5 development update features save compatibility and expected timeline
In the latest progress note, the team underscores save continuity as a priority, aiming to carry forward recognized progress and story flags from prior playthroughs so returning players can pick up seamlessly. While some early-game tuning is expected as systems converge, the guidance stresses that continuity-not resets-frames the update. Newcomers won’t be left out, either: a curated baseline will allow players without prior data to start on solid footing without missing crucial narrative context.
- Save detection: Existing Chapter 1-2 data will be read when available, preserving key progression and flags.
- Fallback start: A developer-defined profile lets players begin without legacy files while maintaining story coherence.
- Tuning caveat: Balance and systems may receive adjustments; continuity of major outcomes remains the goal.
- Player guidance: Clear instructions for locating and validating saves will be shared alongside the update.
On timing, there’s no fixed date yet, but the roadmap aligns the next substantive beat with the anniversary broadcast window, followed by a deeper production brief later in the year. Chapter 5 remains in active development alongside the previously bundled content, with the remaining heavy lifts centered on testing, localization, and audio integration. The team continues to target a multi-chapter rollout while keeping flexibility to adjust if it meaningfully improves quality and stability.
- Next update window: Post-anniversary communications will refine scope and expectations.
- Milestones ahead: Content lock, polish passes, QA/regression, and localization are the focus.
- Release approach: Multi-chapter launch remains the goal, with contingency planning if staggered delivery proves wiser.
- Further details: Platform specifics and commercial information will be shared closer to release.
Recommendations for returning players file preparation play order and spoiler safe viewing
Before the anniversary broadcasts begin, shore up your files. Back up your existing progress and make sure updates won’t trip Steam Cloud or platform sync. Keep your legacy runs intact and prep a clean slate if you plan to replay highlights alongside the streams.
- Back up saves: Copy the UNDERTALE and DELTARUNE save folders from your user directory (Windows AppData/Local, macOS Library/Application Support, Linux home/config). Keep a time-stamped duplicate off-drive if you can.
- Manage cloud sync: Temporarily disable Steam Cloud (or your platform’s equivalent) while you experiment, then re-enable after you’ve settled on the file you’ll continue.
- Fresh runs without regrets: Use Undertale’s in-game True Reset rather than manually deleting files, and isolate new playthroughs in separate profiles to avoid overwriting meta-flags.
- Patch first: Update both games before launching; after patching, load into your most recent safe room/save point to verify migration and file integrity.
For sequence and spoiler safety, a focused replay order keeps continuity intact while the streams roll. Keep your watch settings tight to avoid algorithmic leaks, and time-shift VODs if chat is too chatty with late-game reveals.
- Suggested sequence: Revisit Undertale (Neutral → True Pacifist) before touching any No Mercy content if you want pristine reactions on a fresh memory state. Then play Deltarune straight through Chapters 1-5, continuing from your latest file.
- Preserve surprises: If you’ve ever completed a No Mercy run, know that some reactions persist; consider using your backed-up “clean” file for the streams.
- Spoiler-safe viewing: Watch official channels, hide chat until you’re caught up, switch off autoplay and recommendations, and avoid thumbnails/titles in VOD scrub bars. Use creator-provided spoiler tags or chapter markers when available.
- Community etiquette: When commenting, mask specifics and use spoiler formatting; don’t post late-game imagery or route flags until after the scheduled broadcast windows.
With anniversary streams now on the calendar and a fresh check-in on Deltarune Chapter 5, Toby Fox’s universe is set to command attention once again. Expect official schedules, guest details, and viewing links to roll out on Undertale and Deltarune’s channels in the days ahead. Meanwhile, the Chapter 5 update signals steady progress-even if timelines remain fluid. We’ll update this story as more specifics land. For fans revisiting the Underground or waiting for the next trip through Hometown, there’s plenty to watch-and wait-for.
