Dreamcast SDKs and Development Libraries: Download and Explore
An SDK (Software Development Kit) is a developer’s toolkit: a set of resources and tools that allow games and applications to come to life on a given platform. It typically includes development libraries, compilers, debugging tools, sample code, and essential documentation to understand the hardware for which it is designed.
In the case of consoles like the Dreamcast, the SDK allows developers to fully leverage the system—graphics, sound, controllers, memory, network, and peripherals such as the VMU. Serving as a true bridge between the developer’s PC and the console, it reveals how games come to life.



We love SDKs—they are real goldmines for understanding the inner workings of the console. In the Shinobi folder samples, you can even find the Sonic video from the Saturn, proof that it’s everywhere. All of this comes with extensive documentation in Japanese.



This previously unknown revision of the SDK for the SET 4, the predecessor of SET 5, is all the more valuable as this dev kit remains very sparsely documented. It is packed with technical documents in Japanese, user manuals, and numerous other resources.

This previously unknown revision of the SDK, among the oldest known, includes technical documents and manuals in Japanese. Using it as a reference, Sifting created the Kamui wrapper to run SET 2 demos on PC, including the legendary Scud Race for Dreamcast.
Visual Memory Unit SDK (Dedicated Page)

On the software side, SEGA designed a dedicated VMU SDK for its internal teams and third-party studios, allowing them to create tailored graphics, program mini-games and utilities, and manage data exchanges between the Dreamcast and the memory card.

Previously Unknown Revision of the SET 4 SDK: Technical documents and manuals in Japanese. Few differences compared to the Katana SDK Version 0.40 Pre.2 (patches). Workshop now requires the high-density area for program integration, whereas previously only the normal area was used.

The Shinobi library is an API for the Dreamcast similar to Kamui but with a higher level of abstraction. It was designed to simplify game development, particularly for 2D graphics and multimedia management. This archive therefore includes its source code.

This miscellaneous archive gathers documentation and source files for the Dreamcast Katana SDKs (SET 2 / SET 4), as well as several functional technical demos via the Kamui Wrapper, specifically created for the Scud Race Dreamcast technical demo (SET 2).
Kamui is an official Dreamcast graphics library that handles 3D rendering (polygons, textures, transparency) on the console’s PowerVR GPU. This archive therefore includes its source code, providing insight into how it works.
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Related to video game development, particularly on the Dreamcast, check out the page [Dreamcast Development and Repair Tools for Use on a Real Console: Download], which lists several programs that run on the console. Also see [Dreamcast Technical Demos to Download and Try], dedicated to various technical demos.
