To download the Nintendo DS version of Soul of Darkness , you are actually looking for its DSiWare release. Since the official Nintendo eShop for the 3DS and DSi has closed, you can no longer purchase it directly. Instead, you can find the ROM on community archival sites: Where to Find the ROM
Key Features:
Step 1: Find a Trusted ROM Repository
Avoid shady sites loaded with pop-ups. Stick to communities with hash verification (MD5 checksums). Recommended sources include:
What Is Soul of Darkness? (Game Overview)
Before you hit that download button, let’s break down the game itself.