
Screenshots

Watch trailer on Steam ↗Who Am I エラーコード:九十九
Content notice: Please note that this work contains violent expressions and elements.
5 achievements
Last updated 4 Oct 2026
Who Am I: Error Code 99 is an action novel game where you save memories and uncover the truth.When you wake up, you find yourself in an unfamiliar place.Where is this?Who am I?In search of answers, the protagonist wanders through Toan, a city of desire and despair.
£4.29
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Price history
Adventure, Indie, Casual · 2025 · More under £5 games
Wander through Toan, a city of desire and despair, as you uncover the truth in this 2025 indie adventure from 奥羽電影. When you wake up with no memory, your quest begins to find out who you are.
About this game
Who am I? To find the answer, talk to people, learn words, and unlock new conversations
Who Am I: Error Code 99 is an action novel game where you save memories and uncover the truth.
To know yourself, talk to others.
Click the icons displayed on the map to converse with people.
Someone out there might know who you are.
Learn words and discover new conversations.
Save words that appear in conversations and try talking to other people.
You might receive a different answer this time.
You can remember up to three words.
Choose the necessary words carefully.
Because of your injuries, you can't remember too many words.
What's beyond the conversations...
This world is distorted.
To regain your memories, you might face great suffering.
Are you ready for that?
System Requirements
Will my PC run this? →Minimum
- OS:
- Storage: 100 MB available space
Recommended
- OS:
- Storage: 1 GB available space
Supported Languages
Latest news
AnnouncementsOfficial
Regarding Demo Downloads Hitting 1,000 and the Release Date Decision
Hello. This is Misato from Ouou Eiga.Today, I would like to share two pieces of good news with you.First, the demo downloads have exceeded 1,000. I am surprised by such a huge response. Please allow me to express my gratitude to everyone who played it. Thank you very much.And second, we are finally ready to release the game. September 30th at midnight Japan time. We will officially release "Who Am I Error Code: 99." I would be happy if you enjoy it.Until we reach the release date, I would appreciate it if you could watch the promotional video and game introduction video for "Who Am I Error Code: 99" while you wait.PV "Primitive Desire" "Gameplay" However, I must share some bad news. Those who played the demo know that several planned updates were mentioned at the end. Unfortunately, we have had to cancel some of those promises. In particular, regarding the character portrait changes, it has become impossible to implement them at this time. I apologize for this.The reasons include simple misunderstandings and poor communication systems, much of which is due to my mistakes. To those who were looking forward to these features, I am truly sorry. However, we are currently exploring ways to somehow make it possible, so please give us a little more time. When we have something to report, we will inform you again.Finally, I would like to thank both those who have already picked up this game and those who will pick it up in the future. And please, by all means, enjoy the world of Error Code: 99.Until next time.Read full article on Community Announcements (misato310)AnnouncementsOfficial
PV "Primal Desire" is now available.
Hello, this is Misato from OUDENEI. I have released the PV "Primal Desire" on YouTube. In the demo version, certain effects couldn’t be implemented due to limitations, but in this PV, I’ve tried to express the protagonist’s sensations and emotions upon waking up more vividly. I’d love for you to watch it and share your thoughts! Regarding complaints about the graphics—I won’t be accepting them. Why? Because the artwork was drawn by the creator (me). The amazing BGM was composed by Wounded Healer. A huge thank you to them! That’s all for now. Until next time!Read full article on Community Announcements (misato310)AnnouncementsOfficial
Thank you for 500 downloads of the trial version🙇♂️
Hello, this is Misato from OUDENEI. First of All It has been a week since the release of the demo version, and we’ve achieved 500 downloads! I’m truly delighted that so many people have taken an interest in a game I initially created to promote my novel. If you’d like to dive deeper into the world of the game, please check out the original story, Error Code: 99. It’s a cyberpunk tale interwoven with the themes of shrine maidens. {STEAM_CLAN_IMAGE}/45439380/ea32408d7daf8a35c4a2f8ba7ea4d01ae28b2d40.png If you come across any bugs, I’d greatly appreciate it if you could report them on the following forum: Bug Report You can also report issues via X (formerly Twitter), my Discord server, or even in the chat on Twitch. When reporting on X, please include the hashtag #エラーコード九十九. About the Full Version The full version is currently in development and is scheduled for release in March. It will feature: 3 maps to explore 4 different endings A significant amount of text, ensuring a rich and immersive experience That said, there are also elements that won’t make it into the final game. I’ve compiled these details into the roadmap below for your reference. ■ Planned Features {STEAM_CLAN_IMAGE}/45439380/a2f62d1b86063294c3e5b0b12e7a5ba4d16a6e43.png ■ Unfeasible Features {STEAM_CLAN_IMAGE}/45439380/792e9f41cba571de1c50df2cafb5206c968cd152.png If you have any other requests or suggestions, feel free to share them directly or via X. (Though, due to budget constraints, I might have to decline some requests…) I’m grateful for any feedback, so don’t hesitate to share your thoughts! I hope you continue to enjoy the games and worlds created by OUDENEI. Thank you for your ongoing support! Lastly, please check out another game I’ve released, https://store.steampowered.com/app/3213380/_cursed_letter/Read full article on Community Announcements (misato310)






