So You Want To Play Akaza's Origin Story
I spent about three weeks troubleshooting this fan game project because the launch process isn't documented very well. The Shadows Of The Past Akazas Origin Story Uncovered is a fan-made visual novel / adventure game based on the Demon Slayer character Akaza. It's not officially licensed, so you need to know what you're getting into before you download it. Here's what actually happens when you try to run it. The game is built in either Ren'Py or a similar engine. It retells Akaza's backstory as a human before he became a demon, following the general lore established in the manga but expanding it with additional narrative content. The story covers his time as a martial artist, his desperation to protect someone, and the deal he made with Muzan. The cutscenes are animated in a simple 2D style, and there are branching dialogue choices that affect which ending you get. I tried running this on two different machines. On Windows 11 it launched fine after I installed the Visual C++ redistributable. On a newer Windows 10 build it kept crashing at the title screen with a Python error. The workaround was installing the older C++ package from 2015, not the latest one. That seemed to fix it across the board.
Where To Find It
The project is hosted on a couple of different fan communities. You can usually find it on the Demon Slayer fan wikis or on the major game modding forums. Some mirrors exist but they may bundle extra stuff you don't need. I'd grab it from the original thread rather than a third-party link. That way you're also seeing the current version number and any recent bug fixes people have posted. Expect the download to be somewhere in the 500MB to 1GB range. It's not huge but it's not tiny either. Most of the size comes from the voice acting files if the version you're downloading includes them.
Installation Steps
Step 1: Download the zip archive from the main thread. Verify the file size against what's listed. If it's significantly smaller, the download probably got corrupted. Step 2: Extract it to a folder that doesn't require admin privileges. I put mine in a subfolder on my desktop. Don't extract it to the Downloads folder and just run it from there. File path permissions can cause issues with the game saving progress. Step 3: Look for a file called something like akaza_origin.exe or just startup. Double click it. The first launch might take a minute while it compiles the script cache. That's normal.
Get the Full Details
Step 4: Skip the intro if you already know the story. You can turn it off in the settings menu. The game is fairly short, maybe 2 to 3 hours for a complete playthrough depending on how many endings you chase.
Common Problems And What I Did
The biggest issue I ran into was the audio not syncing properly with the voice lines. It happened randomly after about twenty minutes of gameplay. Every time I hit that point the audio would drift a half second out of sync. I found that closing and reopening the game didn't fix it. What actually worked was adjusting the buffer setting in the config file. You'll find a file called config.rpy or similar in the game folder. There's a line for audio buffering. I changed it from the default value to 1024 and the desync stopped. Another thing to watch for is the game freezing when you try to access the gallery. The gallery stores all the artwork and CGs you unlock. It freezes because of how the image files are named. Some of them use characters that aren't compatible with the engine's file indexer. I renamed the problematic files to simple alphanumeric names and the gallery opened fine. The filenames aren't visible in the actual game, they're just internal references.
What This Game Actually Is
It's important to understand what you're playing. This is a fan project, not an official release. The developers are working on it in their free time. That means updates are irregular and bugs will exist. The story is still being written in some versions. If you download an older build you might find incomplete sections or placeholder text. Check the version date on the download page before you install. The gameplay loop is straightforward. You read through dialogue and narrative text. You make occasional choices that shift the direction of the story. There are no combat mechanics despite the combat-heavy source material. The tension comes from the narrative choices and the multiple endings. There are roughly three main endings and a couple of secret ones that require specific choice combinations across multiple saves.
Performance Notes
On integrated graphics this game runs fine. I tested it on a laptop with basic Intel graphics and got around 30 frames per second during heavy scenes with a lot of background art layered. Dedicated GPUs push it much higher, probably 60 plus. The game doesn't seem to be GPU intensive at all. It's mostly CPU bound because of the scripting engine. If your computer is more than five years old it should still run this without issues. One thing I noticed is that the game doesn't scale well to ultrawide monitors. If you're using a 21:9 display the UI elements get pushed to the edges and some text gets cut off. There's no official ultrawide support. The only workaround is to run it in a windowed mode at 16:9 and center it on your screen. It's not ideal but it makes everything readable.
Save File Management
The save files are stored in your user directory, not inside the game folder. On Windows that's typically under AppData. If you ever need to back up your saves or move them to another computer, that's where you look. I'd recommend copying the entire save folder before updating the game. New versions sometimes change the save format and you could lose progress if you just overwrite everything. I learned that the hard way after a version update wiped about six hours of playthrough. I had a partial run saved with most of the secret endings unlocked. After updating, those saves showed as incompatible. I managed to recover some of them by manually editing the version tag in the save file header, but it was a pain. Just copy your saves somewhere safe every time there's an update announcement.
Is It Worth Your Time
If you're a fan of Akaza and want to see his backstory fleshed out beyond what the manga gave us, this is decent for what it is. The writing is solid and the character voice stays consistent with the source material. The animation quality varies because different scenes were made by different contributors. Some cutscenes look quite polished. Others look like they were rushed to meet a deadline. Don't expect a AAA experience. You're getting a passionate side project. The best way to approach it is to treat it like a free visual novel you downloaded off a forum. Go in with low expectations about production value and you'll probably be pleasantly surprised by the story itself. If you come in expecting something that matches the anime's budget you'll be disappointed. The most rewarding approach is to play through it twice on separate saves. The first playthrough lets you experience the story straight. The second lets you flip every choice to see what you missed. Some of the alternate routes add significant context to Akaza's motivations that the main route only hints at. That's where the game actually earns its length.
