Derail Valley Soundtrack is the official collection of music made for Derail Valley and its marketing videos. With 13 tracks lasting 47 minutes, it is a cohesive blend of post-rock, ambient electronica and string orchestra.

Most of these tracks would've gone lost and forgotten, but they've received a second life through the original release in May 2020. Since then, the album went on to sell over 5000 copies, as a way for our players to support our team.

In June 2026, we've fully remade the album in high quality, with tracks reimagined, expanded and new ones added, almost doubling the original album duration. 

Track History

• 01 - 4:15 - Free

Back in 2023, the upcoming first build of the "Simulator" era, B93, was needing a trailer. About to be the most pivotal moment for Derail Valley to date, it necessitated a new music track with the adequate energy. Already in the first iteration, about a month before the scheduled trailer release, Slobodan had a good inspiration for its direction, and this track was made in just 12 days.

Later in 2025 it was picked up again and vastly expanded for the June 2026 album remaster, in a span of about 3 months, without other notable changes.

• 02 - 4:23 - Simulator

With the development of a main menu in Derail Valley back in late 2021, came the idea to have the main menu music, too. Slobodan wanted to make a track that would be ambient and unintrusive, while also carrying a slight jazzy note, an homage to the tycoon games from the past and tracks "All In" and "Haulin' A" made before it. The track's direction was quickly established, and in about a month it mostly reached the form it would eventually have in the game. Interestingly, the track wouldn't be heard by players all the way until June 2023 when B93 "Simulator" came out, and it remained unchanged until the much later update B100.

In the meantime, the track was picked up again in early 2024, and throughout the next two years, gradually expanded for the June 2026 album remaster. This track was the trickiest to expand, because the new version had to not stray too far from what is arguably the most known Derail Valley track, but it also had to blend well with the rest of the album - of a mostly different genre.

• 03 - 4:47 - All In

In the summer of 2018 we were suddenly pressured by an unplanned deadline. The teaser trailer for Derail Valley had to be made before many of its core features were implemented. Without much depth to the video, a more energetic music made sense to go along than the one originally intended for it ("Unstoppable"). Slobodan made this score just two days prior to launching the trailer. Later in 2019 it was expanded and further improved for the 2020 album release.

However, the changes didn't end there. It was picked up again in 2023 and further expanded. Snippets of its new parts could be heard in promotional "Simulator" short videos. Throughout the next few years it was regularly getting improved in terms of composition and production quality, all the way until the eventual June 2026 remaster release.

• 04 - 2:56 - Never Before A

This was the third and the final track made from scratch for the "Overhauled" update trailer, B80, in September of 2019. With the update becoming more important than Derail Valley's initial release, Slobodan thought it needed an equally meaningful score. The previous attempts didn't quite illustrate the effort, risk and scale of the update, so in the heat of inspiration Slobodan wrote a new track instead. This one debuted both in the trailer and the May 2020 album release, simultaneously.

In late 2022 it was picked up again, to be expanded and improved quality-wise - an effort that become the hardest of this entire album. The track went through over 30 iterations throughout the years, making a sneak peek in promotional "Simulator" short videos, until finally reaching a detailed and rather expressive form that it released in, in the June 2026 album remaster.

• 05 - 0:32 - Never Before B

While working on the Never Before A remaster in late 2025, Slobodan had a wave of inspiration that would end up turning this track into a much darker and more energetic sequel. Since this would be a notable departure from the rest of the album's generally ambient style, it was kept rather short, only to spice it up a little. Finished in only a few days, this was the first track that introduced the A/B track naming variation, later also used by "Haulin' A/B".

• 06 - 4:48 - This Life

Born in the midst of the most difficult Derail Valley development period (late 2018), this track started as a purely ambient piece, a late hours venting project of Slobodan's. A few months later, however, during editing of the Early Access trailer (itself made in less than 12 hours, overnight), Slobodan realized that the already existing track "This Hope" that he planned for it didn't really fit the trailer mood. He last-minute adapted "This Life" instead, adding the distinctive guitar riff part, to take its role instead. The track was finished and the trailer fit to it literally hours before it went live.

Later in 2023 this track was picked up again, expanded and through numerous iterations over the years it gradually morphed into more of an electronic style. Snippets of it could be heard in promotional "Simulator" short videos, but it only reached the final version a few months prior to the June 2026 album remaster.

• 07 - 2:50 - Haulin' A

This was the second track made for the B80 "Overhauled" trailer during the summer of 2019. It started as a spiritual successor to "All In", with the idea to provide an energetic trailer score. However, with "Overhauled" becoming increasingly more important, not only for the game but the company as a whole, literally just after finishing the track Slobodan realized the fitting emotion wasn't exactly there and decided to scrap it and write a new track instead ("Never Before A"). "Haulin' A" would have never seen the light of day, had it not been for the May 2020 album release.

Due to its funky nature that stuck like a sore thumb, for a very long time Slobodan didn't know how to incorporate it into the June 2026 album remaster, which was intended to be more cohesive. Finally, at the end of 2025, inspiration hit and he was able to give it sufficiently more depth and a theme, but perhaps more importantly it became a great segue to the ambient new Haulin' B variant.

• 08 - 2:58 - Haulin' B

One evening in late 2025, while working on the "Haulin' A" remaster, inspiration hit Slobodan like a steam train. Slowing down its new theme and exploring the more ambient nature of it, a whole new track potential was born - ending up fully fleshed out in only a few days. A few months later it was expanded, reaching its final form for the June 2026 album remaster.

• 09 - 4:00 - Unstoppable

This is the first track ever made for Derail Valley, back in May 2018, specifically for the first planned trailer that never came to be. It marked the beginning of what would become one of the most challenging periods in development of Derail Valley. Developed in short bursts during weekends, the track was eventually destined to be replaced by "All In", due to needed adaptations in the trailer direction. It stayed shelved with the intention to be used in another trailer one day, which eventually never happened. The track was expanded and completed later in 2019, for the May 2020 album release.

In 2022 it was picked up again with the intent to improve its sound quality. It was the first reimagined track to be finished, already that year, for the eventual June 2026 album remaster, and has only received small technical updates in the meantime.

• 10 - 3:52 - Altfuture

Some bits of this track are as old as 2007. It was revisited in several Slobodan's tracks since, including the menu music in Switchcars. Seeing how the theme has evolved alongside the company for so many years, Slobodan saw it as one of the oldest things Altfuture and thus created and named it as such. Conceptualized in the summer of 2018, it made its way to the May 2020 album.

In 2022 it was picked up again and, without any major changes, gradually improved in terms of sound quality and overall dynamics. A working version of this track was the first one used in the 2023 "Simulator" short video series, being the first hint at a coming album remaster. The track was slowly improved over the years, all the way until the eventual June 2026 album remaster release.

• 11 - 4:53 - Legacy

This track had the most transformations, and the least stable trajectory in this collection. It started during a few hours of Slobodan's live-stream composing session shared with the Derail Valley community in June 2019. It was later entirely reworked for the May 2020 album, however Slobodan was still not particularly happy with the tone of it, and didn't see how it could be made to fit the rest.

When it came to the remaster, he often thought this track would end up getting scrapped. However, in 2023's "Simulator" short videos, he used the ending of this track, which, in isolation, he eventually grew fond of. Only a month before the eventual June 2026 album remaster, Slobodan decided to try and revive this track by starting it from the end. This lead to a profound burst of inspiration and the track's third life, getting done in just two weeks.

• 12 - 4:35 - Time

One of the summer 2018 creations, this track started as an exercise project of several hours, afterwards shelved in the lack of time to pursue further development. However, given its fitting style, it was revived and completed in August 2019, for the May 2020 album. Since then it's been used in numerous "Overhauled" and "Simulator" videos as background music, which led to it spontaneously growing iconic.

Further work on this track started already in 2023, yet nevertheless it only had minor, technical and very delicate changes throughout the years, leading up to the June 2026 album remaster, as it was already deemed just good the way it was.

• 13 - 2:38 - This Hope

This track was started in 2018 as trailer music for the Early Access release. However, As the game release eventually got complicated and the new trailer needed to show all the important features in a more dynamic fashion, this cinematic track was shelved in place of "This Life", awaiting a potential future use, which it never found until the May 2020 album release.

Already rather solid as it is, for the June 2026 album remaster, the track only received minor changes to its ending, with the new guitar theme intended to blend it more with the album's general style, just prior to the remaster's release.

The old, 2020 release of the soundtrack can still be accessed on Steam, by switching to a beta branch 2020-release. 

If you like Lost Tracks, you might want to also check out Longterm, an ambient electronic music production made outside of Altfuture, but featuring older works from Slobodan.