Maniatic Launcher

A Retro Engine v5 launcher

io.github.santiagocezar.maniatic-launcher

A launcher for the decompilation of Retro Engine v5, used in Sonic Mania Plus. It allows to run this game natively, and facilitates the installation and development of mods.

To play this decompilation, you neeed to own a Steam copy of Sonic Mania (or Plus).

This software is distributed under Fair Use. The Digital Millenium Copyright Act of 1998, in Section 103(f)(3) regarding Reverse Engineering states:

The information acquired through the acts permitted under paragraph (1), and the means permitted under paragraph (2), may be made available to others if the person referred to in paragraph (1) or (2), as the case may be, provides such information or means solely for the purpose of enabling interoperability of an independently created computer program with other programs, and to the extent that doing so does not constitute infringement under this title or violate applicable law other than this section.

This software contains decompiled code from Sonic Mania, made by Sega Corporation and Evening Star, which was adapted to run natively in Linux-based operating systems. It does not contain any kind of art (music, graphics) or level layouts from the original game. As a result, the software does not work unless the user provides their own copy of Sonic Mania, obtained by their own legal means.

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Screenshots

A window titled "Sonic Mania Decompilation Project", the background is a tiled silhouette of
the "Majin Sonic" sprite from that Sonic CD sound test easter egg.

Inside the window, in big bold letters it says: "Not so fast!", and following below with a
normal typeface: "The app couldn't find a copy of Sonic Mania installed on Steam. We can't
legally distribute the assets (sprites, levels, music, etc.) from the game, so you need to
provide your legal copy of it."

Links to Steam, Epic Games and Origin are listed below, with a button to import the Data.rsdk
file manually. In the footer of the window it reads: "Fun is infinite. This application is
not affiliated with SEGA Corporation." — A window titled "Sonic Mania Decompilation Project", the background is a tiled silhouette of the "Majin Sonic" sprite from that Sonic CD sound test easter egg. Inside the window, in big bold letters it says: "Not so fast!", and following below with a normal typeface: "The app couldn't find a copy of Sonic Mania installed on Steam. We can't legally distribute the assets (sprites, levels, music, etc.) from the game, so you need to provide your legal copy of it." Links to Steam, Epic Games and Origin are listed below, with a button to import the Data.rsdk file manually. In the footer of the window it reads: "Fun is infinite. This application is not affiliated with SEGA Corporation."

A screenshot of Sonic Mania where Sonic is eager play Green Hill Zone Act 1.

A screenshot of Sonic Mania where Sonic is fighting against the double-wrecking-ball boss
from Green Hill Zone Act 1. — A screenshot of Sonic Mania where Sonic is fighting against the double-wrecking-ball boss from Green Hill Zone Act 1.

A screenshot of Sonic Mania where Sonic lost all his rings after being hit by the microphone
badnik from Studiopolis Zone Act 1. — A screenshot of Sonic Mania where Sonic lost all his rings after being hit by the microphone badnik from Studiopolis Zone Act 1.

Observed history

App	Change	Version	When ↑

No observed changes yet.

The initial import establishes a baseline. Future version changes will appear here.

Browse the app catalogue →

Upstream releases

Release notes supplied by the developer. These dates are not Flathub package publication times.

1.0.019 Aug 2022

it's time to be a little silly