Ciel nosurge: Ushinawareta Hoshi e Sasagu Uta

Ciel nosurge, full name Surge Concerto: Ciel nosurge (シェルノサージュ〜失われた星へ捧ぐ詩〜) is a life simulation video game for the PlayStation Vita developed by Gust. The player is introduced to Ionasal (shortened to "Ion" in the game), a girl with amnesia; the player's objective is to help Ion regather her memories by entering her mind, which is shown as a broken world which the player can repair (in order to recover Ion's memories). Although not a continuation of the Ar tonelico series, it takes place in the same universe with many of the same elements and expands on the series mythos. The game is notably the first game to be developed by Gust after their merger with Tecmo Koei.

It was released on April 26, 2012 in Japan. As of February 2014, there are no plans for a release outside of Japan. The original cart contained the first episode of the game, and since then nine more episodes have been released as downloadable add-ons to the original game at low prices via the PlayStation Network. Ciel nosurge Re:Incarnation, a rerelease containing all of the original game's patches and DLC, including episodes one through four on the cart and voucher to download episode five, was released on February 21, 2013. The game is slated to have a total of twelve episodes, which are divided in three arcs: the Trials Arc, the Downfall Arc and the Empress Arc.

A continuation of the series has been announced as an RPG game for the PlayStation 3 titled Ar nosurge, released on 6 March 2014.

Gameplay
The player is introduced to Ionasal.kkll.Preciel (イオナサル・ククルル・プリシェール) (shortened to "Ion") (Japanese VA: Ai Kakuma), a girl with amnesia who lives in another dimension; the player's objective is to help Ion recover her lost memories. Ion is a candidate for the next emperor in her world but lives on her own; the player can build a romantic relationship with Ion (shown by a separate "love meter" ) by interacting with her. Ion may make adjustments to her lifestyle timing, which will eventually match the player's the longer the game has been played.

Another gameplay element of Ciel nosurge is the ability to create fairies known as Sharl (シャール) from scanning barcodes. Different barcodes create a different type of Sharl, which are needed to repair Ion's mind. The game also has a system where players can type short messages for other players. The game has been referred to as a social game due to its heavy focus on socializing with other players and the requirement to be connected to PlayStation Network to play. At the time of its release, many of the game's online servers were not working properly, but that problem has since been fixed by Gust through a series of patches.

The game was released as a series of episodes, episode one being the original cart. As of February 2014, ten episodes have been released. Episodes two through ten were released as DLC for a few hundred yen each on PlayStation Network. Each episode is estimated to take around seven hours to complete. Other than episodes and patches, other minor add-ons have been released on PSN, such as costumes, extra scenarios and dialogue packs for the interactions with Ion.

Midway through 2013, Gust released additional contents: bundles containing the entirety of the chapters for both the Trials and Downfall Arcs, bundles containing all costumes, additional Sharl types and even a paid patch that repaired at once all of the Repair Points in Ion's Dream World, allowing the player to see the events without waiting for the Sharls to do the repairs. All of this can be bought as a single bundle, as well.

Setting
The world of Ciel nosurge was designed with an intent to give Japanese players a sense of nostalgia; for example with buildings from the Showa era. Ion herself lives in a world called Ra Ciela. Ra Ciela is nearing destruction due to the expansion of its sun, Bezel; and due to this, most of its population built floating cities called Colons to protect themselves; while the poor still live on the ground.

Reception and sales
Japan's Famitsu magazine scored Ciel nosurge 31 out of 40. Merchandise for the game include a mousepad. In the week from April 23 to April 29, Ciel nosurge ranked number one in PlayStation Vita games sales (33,324 per week) and fourth overall, behind Resident Evil: Operation Raccoon City (PlayStation 3 version), Mario Party 9, and Fire Emblem Awakening, respectively.