Lantern Engine: Bloodborne's Code Runs Native on Windows

By Indie Kings | October 21, 2026

Updated October 21, 2026: Lantern Engine is a Windows launcher and engine that runs a copy of Bloodborne on a PC. The project says the game's own code executes natively on the CPU while its graphics are translated to Vulkan. It is built on bbport and shadPS4, then reworked for performance.

The requirement is the part that matters: Lantern Engine ships no game files. The user must supply a decrypted Bloodborne dump, CUSA03173 with update 1.09, and the v0.9.34 release notes add that CUSA00900, the US release, with update 1.09 is fully supported. That makes this a compatibility project for people who already own the game, not a free download. It also puts the project in the same legal gray zone as every other Bloodborne PC effort.

The repository appeared on October 11, 2026, and had 731 stars and 35 forks ten days later. Stable v0.9.36 and beta v0.9.37-beta.1 both arrived on October 21. The developer says updates are slower now because of the hate the project has attracted.

Image: GitHub social preview for the Lantern Engine repository. Image credit: Awakenchan/LanternEngine, via GitHub.

What Lantern Engine is

The README describes Lantern Engine as a launcher and an engine that runs the user's own copy of Bloodborne on Windows. The game's code runs natively on the CPU, and its graphics are translated to Vulkan. That is a different approach from a general-purpose PlayStation 4 emulator, which has to emulate the console's CPU as well as its GPU.

The launcher asks the user to pick the game folder containing eboot.bin, then starts the game. The package also includes Bloodborne.exe, which can be added to Steam as a non-Steam game for a direct launch. The launcher updates itself.

The project credits PC menus and controls, an integrated upscaler, online play through The Hunter's Dream, crash fixes, and performance work on the shader compiler, draw calls, draw pipeline, and memory. Those are the developer's claims. The README does not publish a frame-rate table, a compatibility matrix, or a list of known-broken areas.

What it is built on

Lantern Engine did not start from a blank page. The README credits DarkIzuku's bloodborne_pc as the engine starting point, which is itself built on bbport and shadPS4. It also credits separate work for VRAM cleanup, frame pacing, crash and controller fixes, cheats, online sign-in, occlusion culling, trophy research, and game patches.

The engine's graphics path is Vulkan. The launcher is C# and uses WPF-UI. The credits list Dear ImGui for the in-game menu, SDL's controller database for mappings, LibAtrac9 for sound, and FSR and DLSS components for upscaling. The README does not say which of those are enabled by default or which GPUs are supported.

The project is therefore a fork of a fork with a long dependency chain. That is normal for Bloodborne PC work, but it means a bug can come from the game code translation, the Vulkan layer, a shader compiler, a third-party upscaler, or the launcher. The release notes reflect that: one hotfix fixes a frame-rate drop over long sessions, another fixes a controller tap after closing a dialog, and the beta fixes an OptiScaler compatibility mode that cost frames.

The engine is open source, but the game is not. The launcher is GPL-2.0-or-later, and the README says the engine is GPL-3.0-or-later with licences in the package's licenses/ folder. Those licences cover the project's code, not the Bloodborne assets the user supplies.

What you need

The minimum is a Windows PC and a decrypted Bloodborne dump for CUSA03173 with update 1.09, or CUSA00900 with update 1.09 for the US release. The README does not publish a CPU, GPU, RAM, or storage minimum. It says the graphics are translated to Vulkan, so a Vulkan-capable GPU is implied, but the project does not state a support list.

The download is substantial. The v0.9.36 Windows zip is about 196 MB, and the standalone launcher is about 76 MB. The game dump is much larger, and the user has to provide it. The README does not say whether the launcher is code-signed.

The installation flow is short: download the zip, extract it, run Lantern Engine.exe, pick the folder with eboot.bin, and press Play. The README says the launcher updates itself. There is no installer and no dependency checklist, which is convenient but also means the project assumes a fairly clean Windows environment.

Release pace and fixes

The release cadence is fast. v0.9.34, v0.9.35, and v0.9.36 all landed on October 21, along with a beta. The stable notes focus on hotfixes: a frame-rate decay over long sessions, a crash after long play, missing PC menus with a modded Hunter's Dream, and a controller input bug after closing a dialog.

The beta adds better diagnostics more than new features. It restores frame rate with OptiScaler by limiting the safe mode to the case where OptiScaler's own frame generation is on. It writes a full crash report when the GPU is lost while presenting a frame. It also logs when mods replace gameplay files, because co-op partners with different mods will desync enemies, and it counts network packets once a minute during a session.

That is a project still building its diagnostic foundation. The beta notes are written for people who will report bugs, not for a mass audience. The README carries a note from the developer saying the project is being kept going on his own and that updates are slower now because of the hate the project has been getting. That context matters when reading the issue tracker or asking for support.

The legal problem

Bloodborne is owned by Sony Interactive Entertainment and developed by FromSoftware. Lantern Engine is not affiliated with either company. The README does not claim permission, and the project ships no game code or assets. The user must provide a decrypted copy of the game.

That requirement is where the legal risk sits. Making a personal backup of a game you own may be allowed in some jurisdictions and not others. Circumventing encryption or downloading a decrypted dump from someone else can violate copyright law and the platform's terms. The project's open-source licence does not grant rights to the game, and it does not protect a user from a rights-holder claim.

There is also a practical security risk. A project that asks users to run an unsigned launcher and point it at a game dump is a natural target for malicious repacks. The official repository is the only source that should be trusted, and even that trust is not a legal shield. Users should verify the release source and avoid third-party builds.

The project's existence also says something about the demand for Bloodborne on PC. Sony has not announced a PC version. Until it does, projects like this will keep appearing, and rights holders will keep deciding whether to act. That is the unresolved backdrop to every performance improvement in the release notes.

What to watch

The next useful signal is not another hotfix. It is a compatibility list. The README currently says the engine runs Bloodborne, but it does not say which areas, bosses, effects, or hardware configurations are known to work. A public table of tested GPUs, known crashes, and missing effects would do more for users than another beta tag.

The second signal is the online component. The README credits The Hunter's Dream for online servers, but it does not explain authentication, account requirements, or what data leaves the PC. Online play in a fan project raises privacy and security questions that a single credit line does not answer.

The third signal is legal. If Sony sends a takedown, the repository disappears and the builds stop. That risk is not hypothetical for console compatibility projects. Users should treat every release as temporary.

FAQ

Does Lantern Engine include Bloodborne?
No. The repository and releases contain no game files. You need your own decrypted Bloodborne dump for CUSA03173 with update 1.09, and the v0.9.34 notes say CUSA00900, the US release, with update 1.09 is fully supported.

Is Lantern Engine an emulator?
Not in the traditional sense. The project says the game's code runs natively on the CPU while its graphics are translated to Vulkan. It is built on shadPS4 and bbport, but it is not a general-purpose PS4 emulator.

What are the PC requirements?
The README requires Windows and a decrypted Bloodborne dump. It does not publish a CPU, GPU, RAM, or storage minimum, so there is no official support list to check before downloading.

Does it support mods and online play?
The README credits mod-related fixes and online play through The Hunter's Dream. The beta release notes warn that co-op partners with different gameplay mods will desync enemies.

Is Lantern Engine legal?
It is an unofficial fan project with no affiliation or permission from Sony or FromSoftware. Making or using a decrypted dump can violate copyright law or platform terms depending on where you live. The open-source licence covers the code, not the game.

How often does it update?
Frequently. Three stable builds and a beta landed on October 21, 2026 alone. The developer says updates are slower now because of harassment, so the pace may not hold.

Our take: Lantern Engine is technically ambitious and unusually transparent about its dependencies. The problem is not the code. It is the missing compatibility and legal clarity. A 731-star project that ships hotfixes every few hours is moving fast, but users still have no published hardware list, no area-by-area status, and no answer to what happens when a rights holder objects. Bloodborne on PC is a real achievement. It is not yet a supported product.

Bottom Line

Lantern Engine is a GPL-licensed Windows launcher and engine that runs a user-supplied Bloodborne dump by executing the game's code natively and translating its graphics to Vulkan. It is built on bbport and shadPS4 and requires CUSA03173 with update 1.09, with CUSA00900 supported per the v0.9.34 notes. The project had 731 stars and 35 forks ten days after creation, with stable v0.9.36 and beta v0.9.37-beta.1 released on October 21, 2026. It includes no game files, publishes no hardware minimum, and has no affiliation with Sony or FromSoftware. The legal and security risks are real, and the compatibility picture is still thin.

Sources

Awakenchan/LanternEngine repository README, including the engine description, install steps, Bloodborne dump requirement, credits, developer note, and licences, verified October 21, 2026.

Awakenchan/LanternEngine releases, including v0.9.36 and v0.9.37-beta.1 published October 21, 2026, with the OptiScaler, crash reporting, co-op desync, and packet logging notes.

GitHub repository metadata for Awakenchan/LanternEngine, verified October 21, 2026: 731 stars, 35 forks, 12 open issues, C#, GPL-2.0, created October 11, 2026, last push October 21, 2026.