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Project Cygnus★OverDRIVE (プロジェクトキグナス★OverDRIVE Purojekuto Kigunasu★OverDRIVE?) is an upcoming Japanese mecha-wrestling fighting/visual novel romance video game for Microsoft Windows developed by Sweet Nectar and published by Honey Productions. It is the spin-off to the original game, allowing the player to fight with PlaWres robots as their unique stories. Plus, an R18 Visual Drama shorts and CGs gallery, soon to be released on August 2020 in solidarity with the victims of the new coronavirus (Covid-19). Honey Productions later hands over it to LittleLulu Falcon Emblem and the co-production Rejet to release an all-ages of original game, titled Cygnus*OverDRIVE ~Ring of Hope~ without adult content, and the game was ported to the Nintendo Switch, Android and iOS, released on February 2021. This version will be rated M for mild nudity and sexuality.


Setting in Hoshiakari after Franco D'ambrosio's demise in the original game, you played as the protagonist Momoha Sunohara who has been reunited with Hikaru, her lovers and all of robots back in her heart. The headmaster Fumiaki Wakamatsu offers you to become the only-female modeler among of all males for upcoming All-Male Global PlaWres Tournament. You need to work harder and upgrade their robots in order to prove their high-skilled fighters. However, someone who's behind the hosting the game all alone. Will you help the PlaWres robots become the top champion? Who hold the mask of greed to ruin the game? It's up to you to become the female-only champion!

Visual Drama Mode is the R18 short stories which allowed to watch the stories with audio drama about experience of romantic intimacy between Momoha and the seven potential boyfriends.


Project Cygnus OverDRIVE is a versus fighting game where the player assumes role of the protagonist Momoha Sunohara and uses characters' Plawres robots per fight in the ring. In contrast to other fighting games, it is impossible to defeat the opponent with a normal move, necessitating the use of a finishing move called the "Fever Finisher". A move button can protect the character, while items are included for further gameplay features.

The game offers a story with different dialogues occurring depending on the characters fighting. Each character has additional costumes; armored parts are available to the players at Junk Shop Nomi if they wish to change their characters' visual appearances. There is an online mode alongside an Spectator Mode where players can see other people's fights.

The Visual Drama Mode can be unlocked through finishing Story Mode with seven main characters' robots in which the player allowed to watch the stories with audio drama about experience of romantic intimacy between Momoha and the seven potential boyfriends. In R18 shorts, there are scenes with sexual CGs depicting Momoha and a given main character having sex. The Project Cygnus OverDRIVE will be much more explicit than two games, each of main character's visual drama short all containing sex scenes. Later, Idea Factory released the version of Project Cygnus OverDRIVE without erotic content.

List of Robots

Returning PlaWrestlers

  • Raiju
  • Ryuenjin
  • Neptune
  • Hercules
  • Apollo
  • Horus
  • Kusanagi
  • Pegasus
  • Suzaku
  • Genbu
  • Byakko
  • Mighty Maximum
  • Zanbatou
  • Masamune
  • Wild Typhoon
  • Rage Falcon
  • Oracle
  • Grizzly
  • Sarutobi
  • Diamond Prince / Mad Faust
  • Venom Viper
  • Long John Silver
  • Toro Rosso
  • Sir Lancelot

New PlaWrestlers

  • Perseus
  • Xolotl
  • Thor
  • Star Killer
  • Tsukuyomi
  • God Lion (sub boss)
  • Tartarus (final boss)

Battle Modes

  • Story Mode
  • Arcade Mode
  • VS Mode
  • Team VS
  • Team Co-Op
  • Time Attack
  • Survival
  • Online Mode
  • Training Mode
  • Tutorial
  • Leaderboard
  • Customization
  • Visual Drama Mode
  • Gallery
  • Option
  • Credit

Visual Drama Mode

WARNING!! This visual drama short stories may contain content not appropriate for all ages, or may not be appropriate for viewing at work: Explicit Sexual Content, Nudity, Adult Language, General Mature Content! We recommended to wear the headphone! All characters' ages from previous Project Cygnus games were turned over 18!

How to unlock?: Play every PlaWrestlers in Arcade Mode three times to unlock every love interests' short stories. Example: In three times you play in Arcade Mode will unlock Daito's Short Story.

  1. Daito's Short Story: Peach-Colored Dream of Crimson Fire!!
  2. Kenshi's Short Story: Sleepover Party at Beach House!!
  3. Ritsuka's Short Story: Circumstances Change, One Night in Hawaii!!
  4. Hibiki's Short Story: Under the Cherry Tree, Holding Chest Softly!!
  5. Clark's Short Story: Secret in Spring ~Sweet-Filled Love Affairs!!~
  6. Yumeto's Short Story: Wishing Upon the Coloring Stars!!
  7. Hikaru's Short Story: A Cold Night to Remember -Christmas' Memory!!-



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