Twilight Town is a world that appears in Kingdom Hearts: Chain of Memories, Kingdom Hearts II, and Kingdom Hearts 358/2 Days. It is the "birthplace" of Roxas, and one of the only two real worlds that appears in Kingdom Hearts: Chain of Memories. It has recently been infested with Nobodies; however, Heartless were known to have been in the city during Roxas's time in the Organization.
Despite its subtle atmosphere, Twilight Town is one of the largest worlds known. It is located in between light and darkness, similar to Castle Oblivion and The World That Never Was. As its name implies, Twilight Town is stuck in endless sunset, with its sun always in the same position in the sky, never rising nor setting. Much like Traverse Town in the previous game, it is divided into several distinct districts, Market Street, Sunset Terrace, and Yen Sid's Tower. The Tower is not truly part of the town; it is merely reached by a train from this world.
 Settings and Areas
Twilight Town is composed of two districts, Market Street and Sunset Terrace. The town is surrounded by The Woods, a large forest that also hides DiZ's headquarters, the Old Mansion. The Woods can only be accessed through a crack in the walls of Tram Common.
Underneath the town is a vast Underground Concourse, which connects Market Street to Sunset Terrace, and has several entrances in each area.
 Market Street
Market Street is easily the largest area of Twilight Town, and is what is most commonly referred to as Twilight Town itself. Market Street is a long, winding, steeply-sloped road that leads from the lower areas of the city to Central Station. The upper portion of the street is known as Station Heights. There are a few shops at Station Heights, including an item shop run by someone familiar to Final Fantasy X fans.
Central Station is a large train station that lies at the summit of Market Street, just past the Station Plaza. Its trains lead all over the world, including other districts of the city and the beach, and there is even a magic train that travels to the nearby world of Mysterious Tower. The Station Plaza itself is a large, open terrace, presided over by the town's distinctive Clock Tower, which, though a twelve-hour clock, has "I" at the top instead of "XII".
The lower portion of Market Street is Tram Common, an open-market area with a free tram circling around. Many shops are found here, including the accessory shop and armor shop run by familiar faces to Final Fantasy VII fans, and a synthesis shop owned by Elmina the Moogle. It appears to be the location of many homes as well. Both parts of Market Street connect to The Sandlot, the area where the infamous Struggle battles take place, and to the Back Alley and Hayner's gang's hideout, The Usual Spot. Roxas's house in the simulated Twilight Town lies above The Usual Spot.
 Sunset Terrace
Another district of the town, Sunset Terrace, can be reached by taking the train at Central Station to Sunset Station. Connecting to Sunset Terrace is Sunset Hill, where Roxas spots the mysterious Ghost Train on the fifth day. Sunset Terrace is eventually joined to the Market Street areas through the Underground Concourse, which finally opens the last time Sora and his party visit Twilight Town.
 Kingdom Hearts 358/2 Days
Twilight Town is the birthplace of all human-form Nobodies, with the possible exception of Naminé. When they are first "born", they arrive in front of the manor gates, in the clearing of the woods. Here, a previously born Nobody greets them and gives them their new name. Roxas at first turned down Xemnas's offer to join Organization XIII and wandered the city streets. After seeing a trio of friends (Hayner, Pence, and Olette), Axel sees Roxas's apparent sadness over not having friends here, appears, and gives him sea-salt ice cream, convincing him to join atop the Clock Tower.
Throughout Roxas's life as a Nobody, he, Axel, and Xion used the Clock Tower as a meeting place after their missions, where they would sit and talk about their missions, or discuss whatever came to mind. It is also here that Roxas and Xion have their final battle and where he absorbs her afterwards.
 Kingdom Hearts: Chain of Memories
Meanwhile, Sora, Donald, and Goofy accessed a memory-based Twilight Town via a card on the eleventh floor of Castle Oblivion. Sora, vexed and confused, wondered why Vexen mentioned the words "my Riku" and "the other side of Sora's heart". After Sora defeated Vexen, Vexen was just about to reveal Marluxia's plans (and, by extension, Roxas's existence) to Sora and company when Axel barged in and killed Vexen.
At a later point, Riku, also in Castle Oblivion, accessed the memory version of Twilight Town with help from King Mickey. In the memory Twilight Town, Riku meets DiZ, fights Riku Replica in their second match ending with Riku defeating the Replica and causing him to fade out of existence, and meets Naminé before confronting Ansem, Seeker of Darkness one last time, to conquer his darkness.
 Kingdom Hearts II
DiZ, unknown to Organization XIII, began using the Old Mansion as a headquarters for his revenge. Along with Naminé and Riku, he set up computer systems and Memory Pods in the basement levels of the manor, and monitored Sora's progression as he regained his memories while Roxas lived in a virtual simulation of Twilight Town.
The restoration process finishes exactly one year from the day that Sora created Roxas, and Sora, Donald, and Goofy awaken from their sleep with their memories restored up to the point that they entered Castle Oblivion, but do not know how long they were asleep, or how they got to Twilight Town. Sora says that the surroundings are rather familiar, and the group wonders if they had ever been there before.
They wander the streets, looking for answers, and ultimately meet Hayner, Pence, Olette, Seifer, and the other residents of Twilight Town. In the Sandlot, the Struggle tournament organizer will explain how they end up doing Struggle battles. In the Market Street, the tram has stopped running and the Moogle shop is closed, sporting a sign that says "Synthesis Workshop - coming soon!"
Eventually, they encounter King Mickey, when he saves them from a group of attacking Nobodies and tells them to board a magic train to the Mysterious Tower. Once there, the tower's master, Yen Sid, gives Sora new clothes, new abilities, and explains the situation with Organization XIII. He also returns the Gummi Ship to them, and puts them on their new quest.
Sora and the party return to Twilight Town twice during their adventures. The first time, he learns that Kairi fled Destiny Islands and was kidnapped by Axel. As he leaves town, he is stopped by Saïx, who taunts him into defeating more Heartless for Organization XIII.
The second time, the party, along with Mickey, Hayner, Pence, and Olette, go to the manor where Sora and the party awakened, and find the digital Twilight Town, which leads them to The World That Never Was.
 Other appearances
 Kingdom Hearts III