Here’s a concise guide to burning and playing Xenocider (a homebrew Dreamcast game) from a CDI file.
Xenocider (Dreamcast CDI) is an obscure, likely unreleased or homebrew Dreamcast title circulated as a .cdi image. It’s mainly of interest to preservationists and emulation enthusiasts; available builds vary in completeness and compatibility, and legal status depends on provenance and content.
is a technically ambitious 3D arcade-style shooter for the Dreamcast, featuring a custom engine that runs at 60 FPS, with a, playable demo in CDI format, while a full commercial, physical release is available from Retro Sumus. While a demo is available for burning, many users prefer using GDI images with optical drive emulators like GDEMU to bypass mil-CD compatibility issues. For more details, visit the Dreamcast-Talk Forums and the official Retro Sumus site.
Because Retro Sumus is an active indie developer, the waters are murky. The game is commercially available on physical disc (pressed GD-ROM) and digital download for emulators. However, the CDI “backup” version exists in archival circles for preservation and for players who own a legitimate copy but want a backup for their ODE (Optical Drive Emulator) or CD burner.
Note: This article assumes you own a legitimate copy of Xenocider. Piracy harms the niche Dreamcast homebrew scene.
File Size & Signature: A properly made Xenocider CDI should be approximately 740MB – 790MB (overburn required). If you see a file that is 650MB, it is likely a stripped version missing audio tracks or FMV cutscenes.
Common Hashes (For verification):
Xenocider is a commercial indie game (not freeware). The CDI is the full paid version – support the developers if you enjoy it. This guide assumes you own a legitimate copy.
: A 3D Rail-Shooting Powerhouse for the Sega Dreamcast Released in 2021 by Retro Sumus, Xenocider is an ambitious 3D on-rail shooter that pays homage to arcade classics like Space Harrier and Sin and Punishment. Despite the Dreamcast being discontinued in 2001, this indie title pushes the hardware to its limits, offering a polished 60 FPS experience that feels like a "lost" first-party Sega classic. Gameplay and Story
You play as Xara, a cyborg awoken from cryogenic stasis to cleanse multiple planets of alien civilizations.
Action Mechanics: The game features third-person blasting where you switch between five "lanes" to dodge fire while independently aiming a crosshair.
Zenopods: You are accompanied by two customizable weapon pods that provide shields, extra firepower, or specialized nukes.
Upgrades: Players earn "Zeno coins" to purchase upgrades for armor, firepower, and extra lives, adding a layer of strategy between its 14 challenging stages. Formats and CDI Information xenocider dreamcast cdi
While originally sold as physical pressed discs, Xenocider is also available in digital formats, which is where the CDI (DiscJuggler image) comes into play. New Dreamcast Game - Xenocider
Xenocider is a 3D rail-shooter developed by Retro Sumus for the Sega Dreamcast, released in January 2021. A CDI file (DiscJuggler image) is the primary format used for this game to be burned to CD-R or used in Dreamcast drive emulators like GDEMU and MODE. Digital and Legal Status
As of April 2026, Retro Sumus has reportedly shut down, but digital versions and existing physical stock remain available. Legal Purchase: The developer previously offered a Xenocider Digital Edition
and a Deluxe Edition directly on their site as a legal way to obtain the CDI file.
Current Availability: Recent reports suggest that although the studio has closed, digital copies may still be obtainable by contacting the developers via email. Physical Availability
Retailers and marketplaces continue to stock physical copies of the game, which are produced on MIL-CD compatible media. Here’s a concise guide to burning and playing
: A 3D Rail-Shooter Powerhouse for Sega Dreamcast Retro Sumus
in January 2021, marking a significant milestone as the first original 3D indie game for the console in over 15 years. Taking inspiration from arcade legends like Space Harrier Sin & Punishment
, it places you in the role of Xara, a cyborg tasked with annihilating entire civilizations across seven unique worlds. Core Features Performance : Runs at a rock-solid using a custom engine called "Dreamer". Peripheral Support
: Compatible with the Dreamcast Arcade Stick, VMU, Vibration Pack, and even the rare Official Twin Stick Customization
: Features "Xenopods"—customizable weapon pods that provide extra fire-power, shields, or nukes. Replayability
: Includes alternate routes through levels, unlockable game modes (like "Fantasy Land"), and an upgrade system for skills and armor. How to Use the Xenocider CDI (Disc Image) Short summary Xenocider (Dreamcast CDI) is an obscure,
While physical copies were released on MIL-CD media, the developers also offered digital versions that can be burned to a standard CD-R for use on most Dreamcast consoles. XENOCIDER - Sega Dreamcast review 12 Mar 2021 —