Welcome to X-hax, the place to go to for information on everything Sonic Adventure DX. Home of Sonic Adventure RDX, and the defunct Shadow Adventure, you can find level editing tutorials and custom utilities for making Sonic Adventure mods / hacks here.

Dude - 02/01/2010
For a long time, people have been plauged by a bug in SADX that causes the c-stick to continually stick to one side when using a xbox 360 or gamecube controller in sadxpc. You can now download a fix for that in the hacks section.

Dude - 01/31/2010
Important update to the level design contest rules for entrants. Click Here for details. You still have until late summer to finish your level, so design away! Don't be afraid to ask for help on the forum or post your progress.

Dude - 01/20/2010
For a long time now I've been doing things the hard way in terms of hacking. I need a C programmer to help me finish my work on model and level tools. So please, if you are a competent C programmer, like sonic and know how to work with triangle strips and UI, contact me to become the next major team member! Also, with the arrival of MainMemory's sadxlvl, a whole new field of sadx level editing has opened up, and in celebration of that I'm going to be holding a level design competition. 1st place gets their level in Sonic RDX. Click here for Details!

Dude - 12/16/2009
I probably should have mentioned this before but MainMemory has his own site now, with wonderful things such as SETEdit and SADXLVL that improve the workflow for sadx modders. You can find a link on the links page or by clicking here. Discussion of MainMemory's tools or hacks can be posted on the x-hax forums, he'll see them there.

Dude - 12/16/2009
The Sonic the Hedgehog Hacking Contest 2010 has been announced this year over at Sonic Retro. This year marks a new turning point, as the 3d sonic games will now have their own category as opposed to competing with all of the hacks involved, as in previous years. Ayla is again organizing the event and needs contributors. I ask everyone in the sadx community to start a hacking project for the contest. The deadline is July 2010!

Dude - 10/11/2009
Did more of that promised site update. Added a new hack, dreamcast model ports. Also, added over 40 screenshots of rdx, a new video and a camera editing tutorial. Remember to register at the forums!

Dude - 03/11/2009
Doing a little site update, going to add new screenshots and a download link for RDX as well as a page on level editing.