Sonic x-treme was supposed to be the 1st 3D official Sonic the hedgehog game that was planned to be released for christmas 1997 by Sega in cooperation with SEGA Technical Institue, development of the game ran through several difficulties and was carried from Mega drive to Sega x32 ending at Saturn when SEGA decided to drop the project and release a Polished edition of Sonic 3D blast for Saturn to fill the hole .

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In 2014, ASSEMbler Games member Jollyroger acquired a source code archive of Point of View's work on Sonic X-treme. This archive contains the source for builds v37, v40 of Ofer Alon's engine and their level Editors titled "Sonic Boom" on PC , and Pieces of v53 Level editor along with level data and a Never seen before engine programmed from Scratch by Point of View. The PC engines requires a nVidia Diamond Edge 3D NV1 video card, NV1 SDK and a Windows 95 system to work.

The v37 engine has been recompiled in the latest version of Visual Studio and The NV1 renderer code was converted to render in OpenGL instead. It was released for first time On February 23, 2015 as a single level demo . The level featured in this release was the same version of Jade Gully featured in the E3 1996 trailer.

Later on at the same year, More versions of the engine were released, v40 which featured a Fisheye 360 Degrees view and an Updated version of v37 which Included several Incomplete test levels and allowed running them Manually with ease , And a Sega Saturn port of Point Of View's engine, Jollyroger expects other updates which goes beyond the "As-Is" Phase by modifying several aspects of the gameplay in the hope of Reaching a Semi-completed version of the game, He has claimed he's working on resurrecting the v53 Source code .However nothing was yet confirmed .

Sonic X-treme - Exploring Levels

Sonic X-treme - Exploring Levels

Starting a mod Tutorial

Useful guides about several tools and files that were released .

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PackageX Leak + Viewers

PackageX Leak + Viewers


PackageX is a huge archive filled with data files for v53 of Ofer Alon's Sonic X-treme engine and other files,sprites, together with SXEngine and v3.1/v3.2...

SonicBoom - Sonic X-treme level editor v37

SonicBoom - Sonic X-treme level editor v37

Mapping Tool 2 comments

The Official Sonic X-treme level editor titled SonicBoom for v37 .

Xtreme v53 Levelpack for v37 .

Xtreme v53 Levelpack for v37 .

Singleplayer Map 1 comment

A Package filled with nice Incomplete Sonic X-treme levels explorable through v37 of the engine, Not accurately ported but it's great to finally be able...

Sonic X-treme v37

Sonic X-treme v37


1996 E3 Demo (a.k.a v37 Demo) of an early build of Ofer alon's Sonic X-treme engine for Modern Windows OS, Ported by "Jolly Roger"

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