If you want to avoid removing the SD card, you can use FBI's remote installation feature.
If you have acquired the .cia file manually from a community release page (like the project's GitHub release page):
OMORI is a complex game. The port may not run as smoothly as the PC version, particularly on older 3DS models. If you'd like, I can: omori 3ds cia install
You need the FBI homebrew application installed on your 3DS to manage and install CIA files.
Create a folder named cias in the root of your SD card (if it doesn't already exist). Copy the omori_3ds.cia file into the cias folder. Reinsert the SD card into your 3DS. 2. Run FBI Launch the application from your Home Menu. Navigate to SD . Navigate to the cias folder. 3. Install the Game Select the omori_3ds.cia file. If you want to avoid removing the SD
Installing OMORI on Nintendo 3DS via CIA: What You Need to Know
Canceled. The 3DS stretch goal from the original Kickstarter was replaced by the Nintendo Switch port . If you'd like, I can: You need the
The History of OMORI on 3DS: From Kickstarter Goal to Fan Reality