In Falsus OST: Every Song, Artist, and Chart Level in lowiro's Rhythm Game

The In Falsus OST is the reason plenty of rhythm game fans picked up a PC copy in 2026. lowiro's follow-up to Arcaea landed on Steam on September 9, 2026, and its soundtrack is less a background playlist than a headline feature: dozens of tracks, a roster running from Camellia to Feryquitous to USAO, and four difficulty tiers that reshape every single song. If you want to know what is actually on the In Falsus OST, which tracks carried over from the demo, and how to hear it away from the keyboard, this guide covers the whole picture.

Key Facts About the In Falsus OST

Before chasing individual track names, it helps to pin down the shape of the release. The In Falsus OST is a PC-first soundtrack attached to a game that spent most of 2026 moving from a small demo to a full commercial launch.

The numbers vary slightly depending on who is counting. One fan-maintained song list describes 70-plus launch songs, more than 40 of them originals, plus a five-track Virtual Singers DLC pack. A separate community guide lists 75 total entries. The gap usually comes down to how DLC, unlockable charts, and demo carryovers are tallied — not to missing music.

What is not in dispute is the reception. PC Gamer's early hands-on impressions of the In Falsus demo argued that only a handful of songs were needed to make the case for the game, which is a strong signal for a soundtrack that eventually grew to roughly fifteen times that size.

The Demo Era: Five Songs That Introduced the In Falsus OST

The demo was the first real look at the In Falsus OST, and lowiro kept the pitch tight: five playable songs, announced for February 11, 2026. That lineup set expectations for the full soundtrack's range, moving from hardcore electronic production to melodic vocal features.

Those five names tell you a lot about the curation. Camellia is one of the most recognizable names in rhythm game music, with credits across Project Diva, Beatmania, and Sound Voltex. Feryquitous and ak+q sit squarely in the melodic electronic space that Arcaea players know well, while the Qlarabelle & crayvxn collaboration pushes the In Falsus OST toward a brighter, vocal-driven edge.

According to community reports, a sixth demo-era track, "Deep Into The Vibe," also circulates in fan documentation. Player experience suggests all six demo encounter tracks became permanently available in the full game's Music Play mode, each rebuilt with a brand-new FBD chart. In the case of "Hyaloüyne" and "Deep Into The Vibe," community trackers list those new FBD charts at level 12.

Full Release Song List: Artists, Arcs, and Chart Levels

The full In Falsus OST organizes songs by story arc, then layers four difficulty tiers on top of each track. That structure makes the soundtrack feel closer to a campaign than a playlist, and it means a single song can represent four very different challenges.

Here is a sample of documented entries from community-maintained song lists. A dash means the data has not been fully documented yet, not that a chart is missing.

Two things stand out. First, the artist roster keeps expanding past the demo — Nhato, Kobaryo, REDALiCE, and USAO all appear in official gameplay showcases, which pushes the In Falsus OST toward harder, more aggressive electronic territory. Second, the Virtual Singers DLC is not a cosmetic add-on. Its tracks carry full four-tier chart sets, as the UtataP entry above shows, with note counts climbing from 495 on MIN to 1,730 on FBD.

What MIN, EVO, ULT, and FBD Actually Mean

New players often assume the four labels are just difficulty names. In practice they define how the In Falsus OST is consumed, because each tier re-charts the same audio file rather than simply speeding it up.

The FBD slot appears locked on the song select screen until players meet its conditions, which is why community trackers mark it separately from the standard three. Note counts scale sharply across tiers. Altered Edge, for example, runs 378 notes on MIN and 1,435 on FBD — nearly a fourfold increase in density on the same track.

For anyone exploring the In Falsus OST as a listener rather than a player, this tier system is also a useful difficulty guide. If a song's ULT chart sits at level 10, you are almost certainly looking at dense, layered production with aggressive percussion.

How to Listen to the In Falsus OST Outside the Game

There is no confirmed standalone streaming release for the In Falsus OST as of October 2026, so the reliable routes are the ones tied to the game and its official channels.

The in-game Music Play mode is the cleanest option. Community reports indicate every demo-era track is permanently available there in the full release, with fresh charts attached, so nothing from the February demo was retired.

For previews, lowiro's official accounts have been the main pipeline. Gameplay showcases have highlighted tracks like "Sin Utopia" by Kobaryo, "NEONVISION" by REDALiCE, and "Lights Out" by USAO well before release. If you want to sample the In Falsus OST without buying in, those clips are the fastest route.

Tips for Getting More Out of the Soundtrack

A few habits make the In Falsus OST easier to enjoy, whether you are chasing full clears or just building a playlist.

• Start on MIN, then jump to FBD for the same song. Hearing one track at both extremes shows how much arrangement changes between tiers.
• Follow the arcs, not the alphabet. Songs are grouped by story arc, and playing an arc in order keeps the soundtrack's pacing intact.
• Check note counts before you commit. A 1,400-note FBD chart is a very different time investment than a 380-note MIN chart.
• Do not skip the DLC. The Virtual Singers pack adds five full tracks with complete chart sets, not filler.
• Watch official showcases for previews. They are the most reliable way to hear unreleased or newly added material early.
• Track community data with a grain of salt. Fan wikis are updated by volunteers, so levels and note counts can shift after patches.

FAQ

How many songs are in the In Falsus OST? Community trackers currently list 75 total entries, while fan wikis describe 70-plus launch songs including more than 40 originals, plus five Virtual Singers DLC tracks. The exact figure depends on whether DLC and unlockable charts are counted together.

Which artists contributed to the In Falsus OST? Confirmed names include Camellia (featuring Petra Gurin), ak+q, Feryquitous, aran, Qlarabelle, crayvxn, satella, Nhato, Kobaryo, REDALiCE, USAO, and UtataP. The roster blends long-established rhythm game composers with newer collaborators.

Can I listen to the In Falsus OST on Spotify or Apple Music? There is no confirmed standalone streaming release as of October 2026. The most reliable way to hear the full In Falsus OST is through the game's Music Play mode, with official gameplay showcases serving as previews.

Do I need the Virtual Singers DLC for the complete soundtrack? Yes, if you want every track. The Virtual Singers pack adds five songs with full MIN, EVO, ULT, and FBD charts, and those tracks are not part of the base library.