The Machine Indexan emulation field guide

1982 · NEC · Japan · computer

NEC PC-9801

For nearly two decades, the PC-98 was Japanese computing.

Essential Fiddly Needs a keyboard Awkward on a modern pad Watch on YouTube ↗

NEC PC-9801 hardware
NEC PC-9801 hardware

For nearly two decades, the PC-98 was Japanese computing. Because IBM PCs struggled with displaying high-resolution Japanese Kanji characters, NEC designed the PC-98 with dedicated 640x400 hardware Kanji ROMs and rich Yamaha FM synthesizer audio.

ZUN coded an early five Touhou Project bullet-hell games (Highly Responsive to Prayers through Mystic Square) on PC-98, establishing an indie music and dōjin phenomenon.

Under the hood

CPU
NEC V30 (8086 compatible) @ 8–10 MHz up to Intel 486 / Pentium on PC-9821
Sound chip
Yamaha YM2203 (OPN FM) / YM2608 (OPNA 6-channel FM + 6 ADPCM rhythm channels + Roland MIDI)
Graphics
640 × 400 high resolution (16 colors from 4,096 palette) with dedicated Kanji character ROM
Media
5¼" / 3½" Floppy Disks & SASI/SCSI Hard Disk Images (.hdi)

What it cost

¥298,000 98.4%

about a month of an average wage in 1982 · about $3,875 today

Japan PC-9801 launch price (¥298,000 / ~$1,200 USD) ¥298,000 (1982)

Dominated Japanese business and PC gaming for 15+ years.

Typical street price

No verified mass-market street price recorded yet.

Units sold18,000,000

Over 18 million units sold in Japan.

Why it mattered

ZUN coded an early five Touhou Project bullet-hell games (Highly Responsive to Prayers through Mystic Square) on PC-98, establishing an indie music and dōjin phenomenon.

Emulating it today

EmulatorsNeko Project II Kai (libretro), Anex86, T98-Next
Setup effortFiddly (7.5 on this site's scale)
ControlsThe original software assumes a keyboard. A desktop setup feels natural; on a handheld, map common keys and keep an on-screen keyboard available.
Runs on a handheldNo — it needs a real machine

Requires Japanese system BIOS and font ROMs (`FONT.ROM`, `bios.rom`) in `np2kai` directory. Neko Project II kai handles floppy (.d88) and hard disk (.hdi) images. The emulator names above are starting points, not a promise that every title or accessory behaves identically. Computer platforms usually add model selection, disk handling and keyboard setup even when CPU emulation itself is mature.

system firmware or BIOS

Requires `FONT.ROM` (Kanji font ROM), `bios.rom`, `sound.rom`, and `itf.rom` in `bios/np2kai/` directory.

How many files you need: 1. Start with the firmware for the exact model and region you are emulating; some families need additional revisions for later models.

Firmware details checked 2026-08. Emulator requirements change — see Libretro documentation for the current list.

Where the software is

TOSEC catalogues computer disks and tapes broadly, including many revisions. It is useful for preservation, while a smaller curated selection is usually easier to play.

This site names preservation projects and explains what they are. It does not link to ROM downloads.

Where to start

  1. Touhou Project (Games 1–5: Lotus Land Story, Mystic Square) Danmaku / Bullet Hell Shmup

    ZUN’s legendary original PC-98 shmups with incredible OPNA FM synth music.

  2. Policenauts Cinematic Graphic Adventure

    Hideo Kojima’s hard sci-fi space detective adventure in crisp 640x400 resolution.

  3. Rusty Action Platformer

    Superb Castlevania-style dark fantasy platformer starring female whip-wielding protagonist Rusty.

  4. Brandish 1 & 2 Top-down Dungeon Crawler

    Nihon Falcom’s unique maze crawler where the entire world rotates around the hero.

  5. EVE Burst Error Visual Novel / Mystery

    Hiroyuki Kanno’s acclaimed dual-perspective detective mystery thriller.

  6. Grounseed Sci-Fi Action RPG

    Stunning high-res mech action with dynamic anime combat portraits.

The verdict

The undisputed king of Japanese personal computing (60%+ market share for 15 years). Breathtaking high-res 16-color pixel art visual novels, dungeon crawlers, and the birthplace of the Touhou…

The strongest software can be rewarding, but original controls and setup assumptions may matter more than screenshots suggest.

Worth it if
Players curious about nec consoles and computers and willing to learn how the original machine worked.
Not for
Anyone who wants a large, instantly accessible library and no model, firmware or control decisions.

Scored 4/5 for fun today and 5/5 for historical importance. Those two scores decide the label at the top — a machine can matter enormously and still be no fun.