Shooter

Puzzle

Adventure

Half-Life

Dreamcast

Half-Life for Dreamcast is a console port of Half-Life for the Sega Dreamcast developed by Gearbox Software and Captivation Digital Laboratories with the assistance of Sierra Entertainment and Valve Software. It was cancelled only a few weeks away from its projected release date.
The port was to feature a new, exclusive mission pack called Half-Life: Blue Shift, along with better visuals and effects.

Star Wars: Battlefront III

Xbox 360

Xbox 360 brings you a total games and entertainment experience. The largest library of games, including titles that get you right into the thick of it with Kinect. Plus, your whole family can watch HD movies, TV shows, live events, music, sports and more—across all your devices. Xbox 360 is the center of your games and entertainment universe.

Star Wars: Battlefront III was the expected fourth game in the Star Wars: Battlefront series. It was in development but was stopped for unknown reasons. The game was then officially cancelled.

Alien vs. Predator

Atari Lynx

Choose your weapon and brawl with the notorious warriors of the big scree! Commission the Colonial Marine and use your weapons and your wits to destroy the base and survive. Be and Alien and use your voracious instincts to defend the hive and rescue your Queen. Or play a Predator and use your grisly arsenal to acquire the ultimate trophy...the skull of the Alien Queen.

Hack and slash/Beat 'em up

Prime

Super Nintendo Entertainment System

Prime was an unreleased game by Malibu Interactive based on the comic of the same name.

Daredevil: The Man Without Fear

PC (Microsoft Windows)

PlayStation 2

Xbox

A beat 'em up based on the Marvel hero Daredevil. It was cancelled not long before its slated release.

Platform

Super Donkey

Super Famicom

Super Donkey is an unreleased platformer starring an unnamed proto-Rayman-like aviator/explorer who resembles the main character of Nintendo's earlier game Sky Skipper. Two builds were found, though neither one has any sound or music and the onscreen timer is non-functional in both. Judging by the name and some unused sprites, this might have been a Donkey Kong-related project.
Various elements of Super Donkey would eventually be used in Super Mario World 2: Yoshi's Island.

Superman

PlayStation

An enhanced version of the Superman game for Nintendo 64 which was cancelled due to license expiration. Although both games are related, the PlayStation version was going to have many improvements over the original game and a complete overhaul on the gameplay sequences, focusing on exploration and combat.

A late prototype was found and dumped online.

Superman III

Atari 5200

Superman III is a cancelled Atari 5200 game based on the movie of the same name.

Dinosaur Planet

Nintendo 64

Dinosaur Planet was a game originally developed by Rare and set to be published by Nintendo, planned for release on the Nintendo 64, but later intended for the Nintendo GameCube instead. It was cancelled in its original form, rebranded and incorporated Star Fox characters, becoming Star Fox Adventures.

A late prototype was found and dumped onto the internet in March, 2021.

Arcade

Ninja Gaiden

Sega Mega Drive/Genesis

Ninja Gaiden for the Sega Genesis is a port of Ninja Gaiden that was set to be published by Sega under license from Tecmo. It was scheduled to be released sometime in 1992 but was cancelled for mysterious reasons.

Congo the Movie: The Secret of Zinj

Congo: The Secret of Zinj is an unreleased game based on the hit 1995 movie. The game was cancelled after a short development turnover and play tests indicating that the game was not good enough for release. Also contributing was the fact that the movie didn't gross as much as expected.

Sport

Arena Football '95

Atari Jaguar

Arena Football '95 is an unreleased arena football video game that was in development by V-Real Interactive and planned to be published by Atari Corporation on a scheduled August 1995 release exclusively for the Atari Jaguar. If it had been released before Midway Games' Kurt Warner's Arena Football Unleashed, it would have been the first officially licensed indoor american football game by the Arena Football League. Adopting the more faster and frantic style of play from the sport compared to american football, players would have the choice of playing across any of the game modes available against with either CPU-controlled opponents or other players, while including all the rules and teams from the 1995 Arena Football League season including the Miami Hooters, who make their only game appearance in the title and were not included in Electronic Arts' Arena Football. Originally conceived in 1993, the game was announced in early 1994 and showcased at SCES '94 but the project would be later cancelled in 1995 after various delays and expenses, despite being close to completion. Although unreleased, a playable prototype has since been released and sold online by independent groups such as the defunct Jaguar Sector II website and later B&C Computervisions.

Black Out

Black Out was a cancelled game which would be played using the SNES Mouse. A leaflet about it was included with the Japanese version of Mario Paint.

A prototype (known as Sleep) was found in the Nintendo Gigaleak of 2020. It is a game where you help a sleepwalker traversing obstacles and shooting at projectiles. The game was made to be played using the Super Scope or the SNES Mouse. It has no sound and uses assets similar to those of Super Donkey (another prototype found in the Gigaleak, possibly related to the original Donkey Kong series) and Yoshi's Island.

As a game under the name of Sleep was never announced nor rumored, even though the game was never shown before and having a different name in the dataleak, Black Out and Sleep they are likely to be the same game given the time frame and the use of the SNES Mouse. Both games are also related to Super Scope 15 (a Super Scope compatible cancelled game) in the dataleak.

Batman

This unnamed prototype of Batman, also known as "Real Shitty Batman!", was a game in production by Software Creations.

Simulator

Falcon

Falcon was an unreleased game by Spectrum Holobyte.

Strategy

Doubutsu Banchou

Eat or be eaten! Assume the role of an animal in it's early stages of evolutionary development. As your animal instincts take over, you will boldly traverse hostile environments, savagely stalking your prey to assert your place in the animal chain of power. Will you have what it takes to become the new king of beasts?

The game started development on the Nintendo 64, but went unreleased, being later ported to the Nintendo GameCube. A prototype of the Nintendo 64 version has been found

Fighting

Pit-Fighter

Atari 7800

Austin Powers: Why Make Millions...?

Game Boy Color

Austin Powers: Why Make Millions...? is an unreleased game for the Game Boy Color that was meant to be the fourth game in the series of Austin Powers for the system. Like the other games in the series, it was intended to be a mini game collection.

The prototype for the game was discovered in the September 2020 batch of the Nintendo gigaleaks.

Big Nose and the Witchdoctor

Nintendo Entertainment System

Follow Big Nose the Caveman in his new adventure to defeat the Witchdoctor!

Reactor

Hi Hi Puffy Ami Yumi: Puffy Ami Yumi and the Manga Madman

Game Boy Advance

Hi Hi Puffy Ami Yumi: Puffy Ami Yumi and the Manga Madman is an unreleased video game for the Game Boy Advance. A rom for the game was dumped on July 4, 2024.

RiQa

In development by Bits Studios, RiQa was shown at E3 1999 and appeared to be heavily inspired by PlayStation title, Tomb Raider. It was a third-person perspective action and exploration game starring a female protagonist.

The game was only shown once, and then was delayed several times before being dropped, with very few details provided. However, it is believed that Bits Studios later used elements from RiQa in its multiformat 2003 title Rogue Ops.

Some prototype builds were dumped and released onto the internet on April 2024.

Dragon's Heaven

Dragon's Heaven is an incomplete and cancelled fighting game for the Neo-Geo. The game was being developed by Kengo Asai, who had previously worked on Voltage Fighter Gowcaizer and The Last Blade.

Mandrake The Magician

prototype found

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