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DOOM in Sonic Mania

Adds a main-menu option to Sonic Mania that boots a playable Chocolate Doom inside the game.

Source

What it does

An entry in the Sonic Hacking Contest 2020 that embeds Chocolate Doom in Sonic Mania as a code mod, with gamepad support and a bonus WAD that swaps in Sonic's sprite. The as-is GPL-2.0 source later served as the base for DOOMSona. The SHC download page was not re-checked.

How it works

Chocolate Doom (with Crispy Doom widescreen bits) compiled as a Sonic Mania code mod via ManiaAPI, launched from a new main-menu option

Requirements & limitations

Sonic Mania (PC) with Mania mod loader; freeware/shareware data included, or a legitimate DOOM WAD

Original sources

Evidence limits

Primary sources reviewed on 2026-10-08 (github.com, old.sonicstadium.org, api.github.com). No independent catalogue play-test or binary safety review was performed.

Code and releases are linked, not hosted here. Game files and footage retain their owners’ rights.