COSOMGame preservation
SEGA GENESIS / USA

Crusader
of Centy.

An adventure kept playable, with the original cartridge’s pixels and sound close at hand.

Original Crusader of Centy game graphics
Original cartridge graphics · USA edition
01 / The adventure

Pick up
your sword.

The original USA game runs in a self-hosted Genesis emulator. A walkthrough sits beside the game, and player controls include saving, time controls and optional assistance.

Open the game →
02 / The original pixels

Look
a little closer.

Browse recovered game graphics. Open an image to fit it to the screen, view it at original size, zoom in and pan across the pixels.

Open the image archive →
Your saves stay with you. Choose Create or Load at startup. An external Genesis session file, browser quick saves, the original cartridge’s battery saves and the walkthrough checklist have distinct roles. The player explains what each action saves and confirms an external write only after checking the written file.
Preservation record

The original stays intact.

The loose ROM and the copy inside the supplied ZIP are byte-identical. Both contain 2,097,152 bytes, and the cartridge header checksum matches. Optional runtime assistance leaves those source bytes unchanged.

This playable edition uses Genesis emulation. The recovery record distinguishes decoded resources, runtime compositions, verified audio loops, and anything that still needs investigation. No completed campaign playthrough is asserted.

Read source hashes and coverage → · Read dated development notes →