AiRace Speed 3DS is a fast, tunnel-based arcade racer developed and published by QubicGames. Originally released on September 19, 2013 for the Nintendo 3DS, the game puts you behind the controls of a futuristic jet craft and asks you to thread it through tight, hazard-filled tunnels at breakneck speed. This CIA package includes the EUR, JPN, and USA regions in a single download, so you can match the file to your console's region without hunting for separate releases.

The premise is simple enough to pick up in seconds: accelerate, steer, and survive. What makes AiRace Speed worth your time is how it layers precision and risk on top of that simple loop. The tunnels are not empty — they are lined with obstacles, moving hazards, and branching routes that reward players who learn the track layout and punish anyone who treats the throttle as a permanent on-switch.

What AiRace Speed Actually Plays Like

AiRace Speed is a tunnel racer, not an open-circuit racer. That distinction matters. You are not drifting around wide corners or managing tire wear — you are holding a line through a narrow corridor where the walls themselves are the primary threat. The camera sits close behind your craft, and the sense of speed comes from the environment rushing past rather than from a speedometer reading.

The game ships with a set of tracks that each introduce their own hazards and visual themes. Early tracks give you room to learn the steering feel; later ones stack obstacles closer together and ask you to chain quick corrections. Because the craft is always moving forward, your job is to read what is coming and commit to a line early. Hesitation usually costs more than a slightly imperfect turn.

Controls are built around the 3DS hardware. You steer with the Circle Pad, and the shoulder buttons handle acceleration and braking. That layout keeps your thumbs on the inputs that matter and leaves the touchscreen free for menus. If you have played the original AiRace or its follow-up, the handling will feel familiar — the craft responds quickly, and the game expects you to use that responsiveness rather than fight it.

Key Features

• Tunnel-based arcade racing — every track is a enclosed corridor filled with obstacles, so survival and speed are the same skill.
• Multiple futuristic jet craft — pick a vehicle and take it through the game's track set, each with its own visual identity.
• Three-region CIA package — EUR, JPN, and USA builds are included, letting you choose the file that matches your console region.
• Built for short sessions — tracks are quick to load and quick to finish, which suits the pick-up-and-play nature of a handheld racer.
• Circle Pad and shoulder-button controls — steering, acceleration, and braking are mapped to the inputs the 3DS handles best.
• CIA format for Custom Firmware — installs through standard 3DS CIA installers rather than requiring a cartridge.

Technical Specifications

The version number above is an estimate based on the eShop update label attached to the file; treat it as a guide rather than a confirmed build number. The file size of 112MB reflects the EUR package, which is the largest of the three region builds listed in the source release.

Region Options and Download Sizes

The release bundles three region-specific CIA files, and they are not identical in size. The EUR build is 112MB, the JPN build is 97MB, and the USA build is 111MB. If you are installing on a North American console, the USA file is the natural choice; European and Japanese consoles should use their matching builds. Mixing regions can cause the game to behave unexpectedly or fail to launch, so check your console region before you commit to a file.

Each region has its own set of mirrors. The EUR package is available through MediaFire, and the JPN and USA packages each have their own MediaFire links alongside alternate hosts. If one mirror is slow or unavailable, the others give you a fallback without changing the file you end up with.

Pros & Cons

• Pros: Immediate sense of speed; simple controls that reward precision; short track lengths that fit handheld play; three regions bundled together; small file size that is easy to store on an SD card.
• Cons: The tunnel format limits track variety compared to open-circuit racers; the game demands Custom Firmware, so a stock console cannot install it; the release has no version changelog, so you cannot confirm exactly what changed in the update; and the file sizes differ by region, which can confuse first-time installers.

Installing the CIA File

You need a 3DS with Custom Firmware to use this file. The CIA format is not a cartridge image you can drop onto a stock system — it is an installable package that a CIA manager writes to your console's storage.

Place the .cia file on your BigSD card in a location you can browse from your installer. From there, use DevMenu or BigBlueMenu, or the homebrew tool FBI, to install the package. Once installation finishes, the game appears on your home menu like any other title. Keep the .cia file on the card until you have confirmed the install completed, then remove it if you need the space back.

If you extract the download with an archive tool, use a current version of WinRAR or 7zip. Older extractors sometimes misread archives and report errors that have nothing to do with the file itself.

Trust Signals and Version Notes

AiRace Speed was developed and published by QubicGames, a studio with a track record in the arcade racing space on Nintendo platforms. The original release date of September 19, 2013 places the game in the early years of the 3DS library, and the eShop update label on this package indicates it includes a post-launch revision rather than the bare launch build.

The source release does not include a changelog, so there is no verified list of what the update changed. What you can confirm from the package itself is the region coverage, the file sizes, and the installer compatibility. There is no password on the game files in this release, and the archive is a standard RAR package. If an archive reports damage or a CRC error, re-download it from another mirror before assuming the file is bad.

For players who want to compare the series, AiRace Xeno 3DS is the follow-up and takes the same tunnel-racing formula in a different direction. If you enjoy speed-focused arcade titles more broadly, SpeedRunners 2: King of Speed and Blood, Fuel, Ammo & Speed are worth a look for a different take on the genre.

Who This Release Is For

AiRace Speed suits players who want a racing game they can finish a track in during a short break, and who enjoy the tension of a narrow corridor more than the freedom of an open road. It is a good fit if you already have Custom Firmware set up and want a small, self-contained arcade title on your SD card. It is not a good fit if you are looking for deep vehicle customization, long career progression, or a game you can install on an unmodified console.

The three-region bundle also makes it convenient for collectors who keep consoles from different regions and want one download that covers all of them. The 97MB to 112MB size range means the whole set fits comfortably on a standard SD card alongside other titles.

Playing on PC

Decrypted ROM files from this release can be played on PC through the Citra 3DS Emulator. That gives you a way to try the game without installing it on a console, provided you follow the emulator's setup requirements. Emulation performance depends on your hardware and the emulator build you use, so results will vary from system to system.

Download Links by Region

EUR (112MB): MediaFire

JPN (97MB): MediaFire

USA (111MB): UptoBox

Final Thoughts on the Update

This refreshed package keeps the same download page while bundling the EUR, JPN, and USA builds together and pointing you at the eShop update revision. If you already had an older copy, the practical change is the updated build label and the consolidated region links. If you are new to the game, start with the build that matches your console, install it through your CIA manager, and give the first few tracks a couple of runs — the handling clicks quickly once you stop fighting the walls.

If you like what you play, support the developers at QubicGames and consider picking up the game through official channels where it is available.

Frequently Asked Questions & Setup Guide