We don't host or mirror the mod — here's exactly where to get it straight from the creator, plus what you need on your end to run it.
ChezzarCat distributes Bikini Horrors through two main platforms. Both are run by the mod's actual creator — avoid any third-party site offering a "direct .exe download" outside of these.
The mod's primary listing, usually updated first when a new version goes live.
Open on GameJolt →Mirror listing on GameBanana's FNF mod hub, often the easiest to browse alongside other mods.
Open on GameBanana →| Requirement | Notes |
|---|---|
| A working FNF base build | Bikini Horrors runs on the standard Friday Night Funkin' engine, same as most mods on GameBanana. |
| Enough storage space | Check the file size listed on the GameJolt/GameBanana page before downloading — it varies between platform builds. |
| An archive tool | Mod downloads are typically zipped; any standard unzip tool works. |
| Windows or browser build (varies) | Check the specific listing for which platforms the current build supports. |
Follow these steps in order and you should be playing Bikini Horrors V3 within a few minutes. The process is essentially the same as installing any other FNF mod — if you've modded Friday Night Funkin' before, most of this will feel familiar.
Head to either the GameJolt page or the GameBanana listing and grab the latest V3 build. Pick the correct build for your operating system — most PC users will want the Windows zip. Don't download from any other site; if it's not on one of those two pages, it isn't from ChezzarCat.
Once the download finishes, locate the zip file and extract it to a folder you can find easily — your Desktop or a dedicated "FNF Mods" folder works well. On Windows, right-click the zip and choose "Extract All." On macOS, double-click the archive and Archive Utility will handle it. Avoid extracting directly into your Downloads folder long-term, since partial paths and permission quirks can sometimes cause issues with game engines.
Open the extracted folder and look for the main executable file. On Windows this is typically a .exe file — often named something like FNF.exe, BikiniHorror.exe, or similar depending on how the build was packaged. On macOS you'll see an .app bundle. If the mod ships as loose files rather than a standalone executable, it may need to be placed inside an existing FNF engine installation — check the mod page's description for any notes about this.
Double-click the executable to launch. On Windows, you may see a security prompt from SmartScreen the first time — this is normal for indie mods that aren't code-signed. Click "More info" then "Run anyway" if you've verified the download came from one of the two official sources above. The game should open to the standard FNF main menu, with Bikini Horrors content accessible from the story mode or freeplay selection.
Bikini Horrors is distributed primarily as a PC mod. Here's what to expect on each platform, including known limitations and workarounds where they exist.
| Platform | Status | Notes |
|---|---|---|
| Windows | Fully supported | This is the primary build target. Works on Windows 10 and 11. If you're on an older version of Windows, you may need to install the latest Visual C++ redistributable — most FNF engines depend on it. |
| macOS | Limited / varies by build | Some V3 releases include a macOS build, but not all versions do. Check the GameJolt listing carefully. On Apple Silicon Macs (M1/M2/M3), you may need to allow the app to run via System Settings → Privacy & Security if Gatekeeper blocks it. |
| Linux | Unofficial / community-dependent | No official Linux build is typically provided. The Windows version can sometimes be run through Wine or Proton — see our mobile & Android guide for Steam Deck-specific notes. A native Linux build depends on whether the modder compiles one — check the mod page comments for any community-provided ports. |
| Browser | Not available for V3 | Earlier versions of Bikini Horrors may have had browser-playable builds on sites like Newgrounds or itch.io, but V3 is distributed as a downloadable build only. Browser builds also tend to have audio sync issues, so the desktop version is strongly preferred. |
| Android / iOS | Not officially supported | No official mobile release exists. See our mobile & Android guide for community options and safety notes. |
Most problems with FNF mods come down to a handful of recurring causes. Before posting on forums or Discord, run through this checklist — you'll likely find the fix here.
The most common cause is a missing dependency. On Windows, install the latest Visual C++ Redistributable (both x86 and x64 versions) from Microsoft's website. If the game still won't start, try running the executable as Administrator. On macOS, check System Settings → Privacy & Security — if the app was blocked by Gatekeeper, click "Open Anyway." Also make sure you extracted the full archive; a partially extracted folder will be missing critical files.
If you see an error about missing sprites, charts, or audio files, the archive likely wasn't extracted correctly. Re-download the mod from the official source and extract it fresh — don't try to merge it with an older version's folder. Some archive tools (particularly older versions of WinRAR) can occasionally skip files during extraction. If the problem persists, check the mod page comments to see if others are reporting the same issue; it may be a bad upload that the creator needs to re-upload.
Audio desync — where the notes don't line up with the music — is one of the most common FNF mod issues. First, check the in-game settings for an audio offset calibration option and adjust it to match your hardware. Bluetooth headphones are a frequent culprit; if possible, test with wired headphones or speakers. On Windows, also check your audio output sample rate — setting it to 48000 Hz (instead of 44100 Hz or higher) can reduce desync on some builds. If you're using a browser build, switch to the downloadable version; browser audio timing is inherently less precise.
If the game is stuttering or dropping frames, try lowering the resolution in the settings menu first. Close any background applications that are heavy on CPU or GPU — especially browsers with many tabs open. On laptops, make sure you're plugged into power and that the system's power plan isn't throttling performance. FNF engines aren't especially demanding by modern standards, so if you're seeing significant frame drops, it's usually a sign that something else on your system is competing for resources.
If your keyboard inputs aren't registering, first check that the game window is in focus — click directly on the game window before pressing keys. Some FNF builds have a configurable keybind menu; make sure the controls haven't been accidentally remapped. If you're using a controller, note that most FNF mods (including Bikini Horrors) are designed for keyboard input by default. Controller support depends on the specific engine build — check the mod page for whether gamepad input is supported. Also check that no other application is intercepting your key inputs (overlays from Discord, GeForce Experience, etc. can sometimes interfere).
If none of the above fixes your issue, the best place to report bugs is in the comments section of the mod's official GameJolt page. Include your operating system, the mod version you're running, a description of what happens, and any error messages you see. ChezzarCat may also be reachable through links on the mod page — check for a Discord server or social media links. Avoid DMing the creator directly for technical support; public comments help other players who might have the same issue.
Quick answers to the questions that come up most often about downloading and running Bikini Horrors.
Yes. Bikini Horrors is a free fan-made mod for Friday Night Funkin'. The creator distributes it at no cost through GameJolt and GameBanana. You should never have to pay to download it — if a site is charging money for this mod, it's not affiliated with ChezzarCat.
File size varies between versions and platform builds. V3 builds typically range from roughly 200 MB to 500 MB depending on whether the download includes a standalone engine or just the mod files. Check the file size listed on the GameJolt or GameBanana page before downloading to make sure you have enough space.
It depends on how the mod is packaged. Some builds on GameJolt are standalone — they include the full FNF engine and you can run them directly. Other builds are distributed as mod files that need to be placed into an existing FNF installation. Read the description on the download page carefully; it will specify which type of build you're getting.
Not officially — see our full mobile & Android guide for community options, browser play, and what to watch out for.
As long as you download from the official GameJolt or GameBanana pages, yes. Those are run by the mod's actual creator. Avoid third-party mirror sites, especially any that bundle the download with an "installer" — legitimate FNF mods don't do that. Your antivirus may flag the executable since indie game builds aren't code-signed, but this is a false positive as long as the source is verified.
Download the V3 build fresh from the official page. In most cases, you'll want to do a clean install — extract the new version into a separate folder rather than overwriting your old V1/V2 files. This avoids conflicts between old and new assets. If you've made any custom changes to the old version (edited charts, custom keybinds), back those up first. Check the mod page's changelog for any specific update instructions from the creator.
The best place is the comments section on the mod's GameJolt page. Include your OS, the mod version, and a clear description of the issue. If the creator has a linked Discord server, that's also a good place to check for known issues and community support.
Bikini Horrors, like most FNF mods, is built on an open-source engine, and the modding community around FNF is extensive. You can edit charts, swap sprites, and modify audio files if you're comfortable with the engine's file structure. However, if you plan to redistribute your modifications, be respectful of the original creator's work — credit ChezzarCat and don't present the mod as your own creation. Check the mod page for any specific guidelines the creator has posted about fan modifications.