In the late 1990s, Capcom was heavily involved with Nintendo. Following the success of Resident Evil 2 on the N64, Capcom decided to develop a prequel, Resident Evil Zero , exclusively for the console.
The concept of a Resident Evil prequel didn’t emerge during a big strategy meeting in the early 2000s. In fact, Capcom’s idea for Resident Evil 0 began blossoming remarkably early, shortly after the announcement of the ill-fated Nintendo 64DD peripheral in 1995—while the very first Resident Evil was still deep in development for the PlayStation.
On the PlayStation 1, swapping characters or loading new rooms instantly was impossible due to slow CD-ROM read speeds. The Nintendo 64 used cartridges. Cartridges have near-zero load times. Capcom realized the N64 hardware could handle loading two independent characters in different parts of a map at the exact same time. The Demise of the N64 Version Resident Evil 0 N64 Prototype Rom
: Capcom officially released high-definition comparison footage in 2015 as part of a developer diary for the Resident Evil 0 HD Remaster . This footage shows the Ecliptic Express train sequence and confirms that many core mechanics (like the "partner zapping" system) were already functional on the N64 hardware.
Capcom, however, was undeterred. Following the surprise success of porting Resident Evil 2 to the N64 (a port that miraculously retained all FMV cutscenes and voice acting), the team at Angel Studios and Capcom set their sights on a prequel. Resident Evil 0 was originally announced in 1999, promising to tell the story of the Bravo Team’s ill-fated mission in the Arklay Mountains. In the late 1990s, Capcom was heavily involved with Nintendo
In subsequent years, various prototypes and development builds have surfaced online. The "ROM" that circulates among collectors is not a finished, polished game. It is often a developmental debug build. It contains:
The game was initially planned to use the N64 64DD (Disk Drive) peripheral, announced in 1995. In fact, Capcom’s idea for Resident Evil 0
Some fans have gone further, suggesting that if the prototype were ever released, the community could "complete" it—fixing bugs, adding missing assets, and creating a full N64 experience that Capcom never delivered.
When the 64DD failed, Capcom moved development to a standard, high-capacity N64 cartridge.
This article dives deep into the history of the lost N64 build, how the ROM was finally recovered, and why it remains a must-play curiosity for hardcore survival horror fans.
In the world of gaming, particularly among fans of the survival horror genre, the Resident Evil series stands out as a benchmark of excellence. One of the lesser-known chapters in the series' development history is Resident Evil 0, initially intended for the Nintendo 64 (N64) console. What makes this even more intriguing is the existence of a prototype ROM for this game, which offers a fascinating glimpse into Capcom's early efforts to bring this title to one of Nintendo's most iconic consoles.