This page is a list of similar works made during the same period of time. Sometimes one work intentionally copied another. Sometimes it's part of a wider trend in which that type of work became very popular all of sudden and others are made. Sometimes it's total coincidence: the creators just had the same idea. Which is the original and which is the imitation is not always completely clear; sometimes, however, it is painfully so.
Sometimes, rather than home-brew a knock off, a company will license a foreign work, and adapt it to be more like its competitor. Occasionally, creators will be forced to war with one another when they simultaneously produce similar works which are subsequently released within a short time from each other.
One thing to remember regarding Dueling Works is that Tropes Are Not Bad — while many Dueling Works appear to be blatant rip-offs, the competition between two shows (or simply the desire to set each other apart) often spurs each other to develop in quality. The result is a grateful television audience.
- Anime & Manga
- Live-Action TV
- Web Original
- Western Animation
- Marvel had dueling work's with itself, with 2016's All-New Wolverine and the 2015 Old Man Logan over which is the "rightful successor" to previous Logan-led Wolverine books. Points in All-New Wolverine's favor are the title, and the fact that Laura is actively using the Wolverine name. Point's in Old Man Logan's favor the are that it stars a Logan, and has generally more mature and violent content.
- This was practically a company-wide theme for Marvel in 2016-2017. Steve Rogers and Sam Wilson each got a Captain America title, Riri Williams and Victor Von Doom got "Invincible" and "Infamous" Iron Man, respectively, and for a brief point while the Unworthy Thor miniseries was running, Jane Foster Thor and Odinson Thor had a book each (and afterward the main Mighty Thor title featured both of them plus the new War Thor). The Wolverine example is distinct in that each character there had a different writer; the other "dueling" titles were orchestrated by the same writers. (Nick Spencer for Captains America, Brian Michael Bendis for Iron Men, and Jason Aaron for all your Thor needs.)
- Earlier, Brian Michael Bendis had launched the New Avengers, which after the events of Civil War, saw the team split up with the anti-registration side going on the lamb to become the Secret Avengers, and the pro-registration side forming the Mighty Avengers, thus creating two dueling Avengers books. Further still, Bendis launched a third book with Norman Osborn's intentionally dark mirrored take on the teams, called Dark Avengers.
- DC's Doom Patrol and Marvel's X-Men. Both teams consisted of super-powered individuals shunned by the world, were led by a man in a wheelchair, and premiered within months of each other in 1963. The X-Men would rise to prominence and become one of the biggest franchises in comics, while the Doom Patrol would struggle to maintain a series. However, the two series diverged: while the X-Men focused on traditional superheroics with a lot of focus on the soap opera side of stories, the Doom Patrol, under Grant Morrison, eventually became a much more strange and experimental title focusing on more mature and artsy themes. While the X-Men do dip into some weirder stuff — particularly when Morrison himself revamped the franchise — along with all manner of magic and sci-fi, the Doom Patrol have largely stuck to the more "out there" tone. The two are very rarely compared these days.
- DC's Who's Who and Marvel's Official Handbook of the Marvel Universe have competed with each other a number of times. During the original run of Who's Who in the mid-1980s, Marvel released the second volume of OHOTMU (also known as the Deluxe Edition). After releasing updates for Who's Who in 1987 and 1988, OHOTMU received an update in 1989 (that same year, DC included Who's Who entries in a number of their annuals). When DC revamped Who's Who in 1990 as a customizable loose-leaf edition, OHOTMU followed suit with their loose-leaf Master Edition before the end of the year.
- DC's Swamp Thing and Marvel's Man-Thing premiered around the same time in 1971, by writers who were roommates at the time, and both became quick cult favorites. When Swamp Thing received his own series in 1972, his origin was changed and became much more similar to Man-Thing's, who also received an ongoing feature in Adventure into Fear at the same time. Since then, Swamp Thing has gone on to have many successful comic runs and a number of appearances in other media, whereas Man-Thing, while still successful, as of 2019 has yet to break out of his cult status.
- DC's Superman and Fawcett's Captain Marvel, so much so that when Captain Marvel's books sold better than Superman's, DC sued Fawcett over similarities between the characters. DC would eventually buy the rights to Captain Marvel from Fawcett. Ironically, these days Superman and Marvel have Friendly Fandoms due to their similarities.
- DC's Archives and Marvel's Masterworks series of hardcovers for reprinting classic runs.
- DC's Justice League of America and Marvel's The Avengers, both teams consisting of the biggest superheroes from each company.
- Champions (2016) and Teen Titans (Rebirth) were both launched within a few months of each other as flagship teen-superhero team books of Marvel and DC's respective waves of comics in 2016. Both feature very diverse cast, both (initially) featured Animesque art styles, and both were the subject of a large Broken Base (mostly breaking on each respective writers interpretation of the characters). Their main differences are that Champions features mostly characters with solo titles of their own while Teen Titans doesn't, and the Champions team initially tries to tackle social issues while the Titans focuses more on battling supervillains.
- Leaving Town and Of Blood And Steel are a pair of Girls und Panzer fanfics with a remarkably similar premise- Erwin leaves Oarai as a result of her father's death and goes to school in another country- that have similarities beyond those of two works with a Fandom-Specific Plot, and that were published within a week of each other.
- Disney's Frozen franchise and Dreamworks' Trolls franchise could be considered this. Both franchises are major cash cow franchises aimed at girls that are set in fantasy worlds and have a major focus on music. They both also have Christmas specials that were released the same exact weekend, and have upcoming sequels slated to be released in the same 3-month timeframe. In terms of DVD sales, Frozen is the more popular film, but Trolls has moved more merchandise than Frozen ever since it was released to theaters, to the point where it was the second-biggest licensed property the year it came out, only beaten by Star Wars.
- In 2016, two different toy companies came out with toys based on the "unboxing" craze: Hatchimals, which were made by Canadian company Spin Master, and L.O.L. Surprise! by MGA. Though the first had a very strong start with being 2016's most popular toy and some pieces of branded merchandise, L.O.L. Surprise!, on the other hand, beat out Barbie as the top-selling doll brand by 2017 and has had sold more products since than Hatchimals ever since.
- On March 19, 2018, there were two children's books written about the pet rabbit of Vice President Mike Pence's family, Marlon Bundo, written from different sides of the political spectrum. The official version was written and illustrated by two of his daughters and was little more than a fluff promotional piece for them. Meanwhile, the other version was created by the team behind Last Week Tonight with John Oliver satirizing his more controversial views while still being for children and containing An Aesop about acceptance and the power of democracy, as well as all of the proceeds going to gay charities. While they both entered the bestseller's list on Amazon, John Oliver's won out by selling more copies (even reaching the #1 spot) and gaining way more positive reviews.
- Survivors, Dogs of the Drowned City, and The Last Dogs are three similar series that came out around the same time. They're children's xenofiction literature about a group of dogs surviving on their own in a city after their humans evacuate due to a natural disaster (an earthquake and a hurricane respectively in the first two) or a disease sweeping throughout the country (in The Last Dogs). Dogs of the Drowned City was a trilogy, The Last Dogs was a tetralogy, and Survivors has twelve books and three novellas.
- The 2010s have the Peter Diamond series by Ben Aaronovitch and the Shadow Police series by Paul Cornell, which are both stories about Metropolitan Police "magical crime" squads written by former Doctor Who writers.
- Blur and Oasis. Both are popular BritPop bands that rose to prominence in the 90's. Both bands even competed in the "Battle of Brit Pop". Both would also eventually move away from the genre once it started to die out.
- Halestorm and The Pretty Reckless, both being 2010s Hard Rock bands with female lead vocalists, get compared a lot, e.g. this video. The two groups toured together for a month in 2015 and from the sound of it their respective frontwomen Lzzy Hale and Taylor Momsen actually get along pretty well.
- Whenever an artist releases multiple albums on the same day, there can be a competition to see which one will sell the most copies (examples: Guns N' Roses' Use Your Illusion I and II, Bruce Springsteen's Human Touch and Lucky Town, and the solo albums of all four KISS members).
- The classic example for this trope in music would be The Beatles and The Rolling Stones. However, their rivalry was quietly a friendly one. Furthermore, the former's acrimonious break-up apparently inspired the latter to reassess their own band's group cohesion and take steps to ensure they stay together in reasonable harmony. As a result, while the Beatles' legacy has been unmatched in influence over the decades, the Rolling Stone's longevity as one of the great rock bands of all time is near-legend.
- An Older Than Steam example: in 17th century Paris, the two only permanent theatres (Théâtre de l'Hotel de Bourgogne and Théâtre du Marais) would compete via "dueling pieces", sharing the same themes (and often adapted from the same foreign plays) and tailored for the "stars" of the respective troupes.
- Rival choreographers Bob Fosse and Michael Bennett may not have intended Chicago and A Chorus Line as duelling works, but as Ben Brantley (chief theater critic for the New York Times) argued in his review of the 1996 revival of Chicago, both are Broadway musicals that opened in 1975 and center on aspiring stage performers, but while "A Chorus Line was built on the premise that if you scratch the surface of an entertainer, you'll find a trembling, vulnerable child; Chicago scratched that same surface to uncover a manipulative egomaniac." Additionally, while the original production of A Chorus Line held the record for longest-running Broadway musical for many years, the revival of Chicago has since surpassed it, and is now second only to Phantom of the Opera.note
- The SpongeBob Musical and Escape From Margaritaville could be considered this, as both are tropical-themed musicals based on well-know pop culture icons that deal with the main characters facing a disaster and trying to stop it. While SpongeBob has received glowing praise, the reviews for Margaritaville have been negative. To make matters worse, there had been reports of the audience at the latter show acting very rude (doing thing like acting drunk and singing along to the songs). However, neither of them were big successes at the box office, with both shows closing the same year. However, the soundtrack for the former became a Billboard Kids' Audio hit, even after the show closed.
- Disney Junior Dance Party and Nick Jr.'s Move To The Music are two dance party-themed touring shows based on popular preschool blocks that are touring around the same time (however, the Disney show has seniority over the Nick once, premiering a year and a half before). While the first version of the Disney show was poorly received because most of the characters were just screen projections and not costumes and because most of the time was spent with the DJ hosts, the second version was seen as better in the eyes of most fans. As the Nick Jr. show has yet to open, it's unknown how well it will do.
- In 2018, two musicals focusing on LGBT issues, The Prom and Tootsie, opened on Broadway. While Tootsie received glowing praise and 11 Tony nominations, The Prom has been met with mixed reviews, although it did receive seven Tony nominations.
- Two musical adaptations of The Wild Party came out in 2000, with Michael John LaChiusa's running on Broadway and Andrew Lippa's Off-Broadway. However, both flopped.
- In 1935, the first themed attraction in the United States, Santa's Candy Castle, was opened up in Santa Claus Indiana to capitalize on all the attention the town was getting for it's name. Across the street from the Candy Castle, a rival Santa Claus themed attraction called Toy Town was also created. The conflict over the similar attractions and disputes over the land on the park led to years of lawsuits, which went all the way up to the Indiana Supreme Court. In 1946, a third competitor opened up Santa Claus Land in the town, which was later rebranded as Holiday World.
- In 2011, both Universal Studios' Halloween Horror Nights and Busch Gardens' Howl-O-Scream had a haunted house based around Edgar Allan Poe, and both houses were even titled Nevermore.