Slime Slayer 3DS (USA) CIA [New3DS Only] — Overview

Slime Slayer 3DS is a first-person action-adventure title developed and published by Famous Gamous. Released on October 10, 2019 for the Nintendo 3DS family, this USA-region CIA build is specifically compiled for New 3DS hardware and will not run correctly on the original 3DS or 2DS models. The download is a compact 10MB package, making it one of the lighter action titles you can sideload onto a custom-firmware console.

The premise is straightforward: you take on the role of a slime-hunting protagonist moving through environments in first-person perspective, clearing out waves of gelatinous enemies. The game blends exploration with fast, arcade-style combat, and the small file size means it loads quickly from your SD card. If you enjoy bite-sized action experiences on handheld hardware, this one fits neatly into that niche.

Download Slime Slayer 3DS CIA

Use the button below to grab the USA CIA file from the official Mega mirror. The download is 10MB and arrives as a .cia package ready for installation through a CIA installer on your New 3DS.

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Technical Specifications

Key Features

• First-person action combat — Fight slimes and other enemies from a first-person viewpoint, aiming and striking in real time.
• Action-adventure structure — Explore connected areas, clear enemy encounters, and progress through the game's stages.
• New 3DS optimized — The CIA is compiled specifically for New 3DS hardware, so it takes advantage of the stronger system.
• Compact 10MB download — Small enough to keep on your SD card alongside other titles without eating storage.
• USA region build — English-language release with the USA region tag, matching standard North American console settings.
• Custom firmware compatible — Installs as a .cia file through DevMenu, BigBlueMenu, or FBI on a CFW-enabled console.

Gameplay and Storyline

Slime Slayer leans into arcade action rather than deep narrative. You control a slime hunter in first-person, moving through environments and engaging enemies as they appear. The combat loop is built around positioning and timing — you line up your attacks, deal with groups of slimes, and push toward the next area. Because the game runs in first person, the sense of space and enemy approach matters more than in a side-scrolling action title.

The adventure framing comes from the progression between encounters: you aren't just fighting in a single arena, you're moving through a world that opens up as you clear it. Famous Gamous designed the experience to be approachable — you can pick it up, play a session, and put it down without a long commitment. That makes it a reasonable fit for handheld play, where sessions tend to be shorter.

If you enjoy this kind of compact action game, you may also want to look at Bad Chicken Switch, which shares the same pick-up-and-play spirit, or Task Force Kampas Ps Vita for another handheld action option.

Pros & Cons

Pros

• Very small 10MB footprint — easy to store and quick to transfer.
• First-person action-adventure mix that's simple to pick up.
• USA region and English language support built in.
• Works with common CIA installers on custom firmware.

Cons

• New 3DS only — it will not run properly on original 3DS, 3DS XL, 2DS, or 2DS XL models.
• Requires custom firmware and a CIA installer; it is not a plug-and-play eShop download.
• Short, arcade-style scope rather than a long campaign.
• Limited language options — English only.

Trust Signals and Version Freshness

The build listed here corresponds to the October 10, 2019 release from Famous Gamous, and the version number shown above is an estimate based on that release date rather than an official build stamp. The publisher and developer are the same studio, Famous Gamous, which keeps the source consistent. The file is distributed as a single 10MB .cia package from the Mega mirror linked on this page.

Before you install, confirm two things: your console is a New 3DS model, and your custom firmware setup includes a working CIA installer such as DevMenu, BigBlueMenu, or FBI. Place the .cia file on your BigSD card in a location you can browse from the installer, then run the installation from there. If a download ever fails or the archive reports damage, re-download the file rather than trying to repair it.

Installation Notes

Install the .CIA file using DevMenu or BigBlueMenu, or with FBI. Make sure you placed the .cia file properly on your BigSD card before launching the installer. Once installed, the game appears on your home menu like any other title.

For extracting any RAR files, use WinRAR or 7zip. There is no password on any game file uploaded here — all games are password-free. If you hit broken or dead links, you can request a reupload through the site's reuploads page.

Decrypted ROMs are playable on PC with the Citra 3DS Emulator if you want to try the game on a desktop setup. Note that the CIA format itself is intended for console installation; emulator use typically involves a decrypted ROM rather than the CIA package.

Download Slime Slayer 3DS CIA — Final Link

Ready to add it to your New 3DS library? Grab the 10MB USA CIA from the Mega mirror below.

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If you like this game, support the developers and buy it where available.

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Recommended For You: If you enjoy this game, also check out Bee Simulator The Hive Switch and Crimzon Clover World Explosion Switch for more top-rated gameplay.

Looking for more top titles? Explore our complete rankings in the Best Nintendo Switch Games guide.

Frequently Asked Questions & Setup Guide