The Quantum Enigma and Epic Metal Fest (2014–2015)

On February 5, 2014 Epica revealed on their official website first details about their sixth album. It was revealed that the new album will be titled The Quantum Enigma and would be released in the beginning of May 2014. Later that same month the band unveiled the album's cover art, which was created by longtime collaborator Stefan Heilemann to accompany the ideas behind the lyrics. Track listing and release dates were announced the same day as well and eventually The Quantum Enigma was released by Nuclear Blast on the 2nd of May (Europe), 5 May (UK) and the 13th of May (USA). The album was produced by Joost van den Broek and recorded in the Sandlane Recording Facilities in The Netherlands. The Quantum Enigma debuted at 110 on US Billboard 200, making it Epica's second entry on this chart, the previous being Requiem for the Indifferent and charting there in February 2013. In Epica's home country Netherlands, the album peaked at No. 4 making it their highest ranking album on the chart.
The band commented: "Where Retrospect reflected on the first decade of our career, we'd like to think The Quantum Enigma marks the beginning of a new era, where Epica sounds heavy, modern and without compromises! More than ever, the creation of this album was a group effort and we are extremely proud of the results! Every detail finds its way into a perfectly balanced mix, and makes Epica sound raw and overwhelming."
On March 17, 2014 the first single, "The Essence of Silence" was made available as a digital download from iTunes, Amazon, Spotify, Deezer and other platforms. Three days later a lyric video was released. "Unchain Utopia" was chosen as the second single and released on April 8, 2014. In an interview with the Sonic Cathedral Webzine, lead vocalist Simone Simons confirmed that a music video for "Unchain Utopia" was set to be released soon. However, a lyric video was released instead, which features footage originally filmed for the music video. Later on the band decided to film a music video for the track "Victims of Contingency", which was released on October 30, 2014.
The band returned to the stage after almost a year on the 30th April in 2013, Tilburg in their home country, The Netherlands, which marked the album release show. Throughout 2014 and 2015 the band toured Europe, Asia, Africa and both South and North America in support of The Quantum Enigma. Their last venue before going back to studio is set take place on 22 November 2015 at "Klokgebouw" in Eindhoven, the Netherlands, where Epica previously held their Retrospect venue. The show will be a part of the first edition of "Epic Metal Fest", which is a festival organised and curated by the members of the band. Epica announced Epic Metal Fest on June 3, 2015 on their official website and revealed that they will be joined at the festival by bands Dragonforce, Eluveitie, Fear Factory, Moonspell, Delain and Periphery. The frontwoman Simone Simons further commented: "It was a long-cherished dream of Epica to host our own festival and we are very proud to be able to present an absolute awesome array of international metal acts. This day will surely be the next highlight in our career and we hope to be able to share it with all of you!"
On June 5, 2015 Epica was awarded the Music Export Award at Buma Rocks, which is given to the Dutch act with the most international success in the past year. The band's guitarist/vocalist Mark Jansen thanked band's fans through their official website: "We are honoured with this prestigious award, it’s a big achievement after all those years of investing countless hours and much energy into Epica. It shows that everything you do by following your heart will eventually pay off and will get acknowledged. Thanks to all our fans from all over the world!”