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Engineering & Reverse Engineering(Mark this forum as read)
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  Important Topics
Pinned   Attachments General Project Screenshot/Video Thread Tweaker 
  • 4225 Replies
  • 832640 Views
Pinned   Who Can Test On Hardware? Quickman 
  • 75 Replies
  • 22962 Views
Pinned   Random Hack/Mini Project Thread Malevolence 
  • 618 Replies
  • 187639 Views
Pinned   Attachments Basic Questions & Answers thread
NEWBIES: Start here!
Tweaker 
  • 5391 Replies
  • 566258 Views
Pinned   Sonic Retro on GitHub
Who? What? When? Where? Why?
MainMemory 
  • 40 Replies
  • 6583 Views
Pinned   Sega Homebrew Competition 2015 Super Egg 
  • 7 Replies
  • 2009 Views
Pinned   Sonic Hacking Contest 2015
Oh hey it's finally announced.
Spanner 
  • 5 Replies
  • 2233 Views
Pinned   Attachments THE SonED2 thread
2009-05-26 quickfix
Stealth 
  • 212 Replies
  • 56854 Views
Pinned   So, you want to start hacking Sonic?
PART 1: Newbie starting guide.
Jayextee 
  • 43 Replies
  • 39698 Views
  Forum Topics
Sega PC Reloaded
Four old games, working still/again
Korama 
  • 59 Replies
  • 6488 Views
Sonic Classic Heroes
Rise of the Chaotix (sorry, Mighty) - v0.10.008a out
flamewing 
  • 1518 Replies
  • 420131 Views
SonLVL
Level Editor for S1, SCD, S2NA, S2, S3K, SKC, SCDPC - 535 - 04/17/2015
MainMemory 
  • 566 Replies
  • 84766 Views
Amy In Sonic 2
"I'll destroy all of you!"
E-122-Psi 
  • 232 Replies
  • 72508 Views
Amy In Sonic 1
"Amy Rose is here!"
E-122-Psi 
  • 261 Replies
  • 55019 Views
Sonic Generations Hacking (and More!)
Generations Cracked wide open (Custom Levels are an ongoing event!
Andrew75 
  • 4424 Replies
  • 1536375 Views
SA2/SADX Mod Loader
I am the best at names
MainMemory 
  • 95 Replies
  • 36792 Views
Sonic Adventure DX: Fixed Edition
Update 7/18/2014
Morph 
  • 102 Replies
  • 90406 Views
Sonic 2 Delta v0.25
Test version
Esrael 
  • 9 Replies
  • 1531 Views
S3K to S1 SMPS Converter ValleyBell 
  • 16 Replies
  • 6407 Views
Sonic 3 Resort Island
Because even heroes need a holiday
UtopiaUK 
  • 33 Replies
  • 18632 Views
Sonic 2 Special Stage Editor
Windows and Linux; v0.2.0
flamewing 
  • 34 Replies
  • 9852 Views
SADX PC '04 XInput
v1.4, 3/26/2015
Morph 
  • 11 Replies
  • 3038 Views
Big's Fishing Derby
ビッグの 釣りダービー
flamewing 
  • 23 Replies
  • 5126 Views
Sally in Sonic 1! E-122-Psi 
  • 161 Replies
  • 51605 Views
Various bugfixes for the Sonic 1 sound driver ValleyBell 
  • 1 Reply
  • 415 Views
Sonic Adventure 2 Hacking
Now a general SA2 Hax thread
Turbohog 
  • 846 Replies
  • 310340 Views
Sonic Advance Hacking
Just a general Sonic Advance hacking thread.
Demonic722 
  • 27 Replies
  • 5476 Views
Some changes/fixes for Sonic 1 KingofHarts 
  • 59 Replies
  • 15258 Views
SoniPlane
HELP WANTED! - SEGA MegaDrive plane editor (beta 1.1.1) - in-dev:
Green Snake 
  • 24 Replies
  • 6342 Views
Optimizing the DMA queue
Now with S2 Special Stage bugfix
flamewing 
  • 27 Replies
  • 4994 Views
Making Sonic 2's sound driver good
A collection of guides too short for their own topics
Clownacy 
  • 1 Reply
  • 642 Views
Sonic Fighters Hacking Andrew75 
  • 34 Replies
  • 12729 Views
Sonic 2 Clone Driver v2
v2.2.6 | and other SMPS-related ramblings
Clownacy 
  • 75 Replies
  • 17919 Views
Flex
web based tile / mapping / DPLC editor
snkenjoi 
  • 9 Replies
  • 2067 Views
Get Blue Spheres? Cinossu 
  • 14 Replies
  • 3822 Views
Blue Sphere Password Algorithm Reverse-Engineered ArrowCase 
  • 4 Replies
  • 1239 Views
Rocket Knight Adventures Compression
Tool Help Required
StephenUK 
  • 2 Replies
  • 815 Views
Optimized KosDec and NemDec, considerably faster decompression
UPDATE: New improved Kosinski and Nemesis compressors by flamewing
vladikcomper 
  • 30 Replies
  • 6264 Views
SMPS2ASM and improved S&K Driver
Converting songs and SFX has never been easier
flamewing 
  • 40 Replies
  • 11489 Views
Saxman's Sonic Boom engine
Throw out your S2 disassemblies. Try this instead.
saxman 
  • 74 Replies
  • 18337 Views
Sonic X-treme Modding !
Now that you've got the 037 leak, Lets Have some fun!
Andrew75 
  • 0 Replies
  • 1970 Views
SADX/SA1 Hacking/Modding
Now with more research and development!
MainMemory 
  • 2169 Replies
  • 410464 Views
[S1] Considerably speeding up level loading
Gotta go fast, right?
Green Snake 
  • 14 Replies
  • 2790 Views
Sonic 3 Complete
S&K Collection on MD, with fixes, Sonic 3 music and many options.
Tiddles 
  • 1593 Replies
  • 408247 Views
Strange fix to test out
I want to see if it's just me
Clownacy 
  • 4 Replies
  • 2072 Views
GSXPwn snkenjoi 
  • 0 Replies
  • 847 Views
Sonic Lost World (Wii U) Hacking & Resources - Tools are public
The child of Colors and the Hedgehog Engine
Dario FF 
  • 59 Replies
  • 17116 Views
Sonic 1 Color Contrast
Beta 4.3
TheInvisibleSun 
  • 95 Replies
  • 26777 Views
How to improve PCM playback quality with Sonic 2's sound driver Clownacy 
  • 3 Replies
  • 1265 Views
Sonic 3 Cz v2.0
Launch Base unglitched!
Hayate 
  • 41 Replies
  • 16077 Views
Sally In Sonic 2
"Where were you when the brains were handed out?"
E-122-Psi 
  • 38 Replies
  • 13377 Views
Sonic Boom: Rise of Lyric File Formats NeKit 
  • 1 Reply
  • 2120 Views
Need help ripping sound effects from the DC version of SA2 IndyTheGreat 
  • 4 Replies
  • 1506 Views
Sonic Heroes something MainMemory 
  • 44 Replies
  • 15776 Views
Dragon Crystal (SMS) Disassembly and Exploration
Yay Sega roguelikes
trykaar 
  • 12 Replies
  • 3478 Views
Sonic Adventure: Beta Chao Garden Restoration Vertrex 
  • 6 Replies
  • 2598 Views
Sonic Adventure 2: Battle Network
Online Multiplayer for Sonic Adventure 2 PC! (v3.0, 11/29/2014)
Morph 
  • 41 Replies
  • 26958 Views
Some changes and fixes for Sonic 2 Esrael 
  • 140 Replies
  • 30153 Views
[Tutorial] How to interactively add objects to SA2 levels flarn2006 
  • 2 Replies
  • 1014 Views
Shadow the Hedgehog general hacking discussion
Formely Shadow the Hedgehog test level found
ashthedragon 
  • 101 Replies
  • 41014 Views
How to fix speed issues in Sonic 2
A step-by-step guide
redhotsonic 
  • 12 Replies
  • 3574 Views
Saturn Homebrew 101
how do?
Lostgame 
  • 0 Replies
  • 893 Views
How to extend the sound ID range in Sonic 2's sound driver
(properly)
Clownacy 
  • 0 Replies
  • 750 Views
Portal Gun in Sonic 2 snkenjoi 
  • 13 Replies
  • 5802 Views
Sonic Hacking Contest 2014 Results Spanner 
  • 26 Replies
  • 7392 Views
Fixed Water in the Chao Gardens (Sonic Adventure DX PC) IndyTheGreat 
  • 8 Replies
  • 3779 Views
Metal Sonic Hyperdrive
Metal Sonic in Sonic 1-3K included
LoneDevil 
  • 18 Replies
  • 6312 Views
Playable Metal Sonic in Sonic CD
Halloween release
LoneDevil 
  • 17 Replies
  • 5210 Views
Static Splash Screen Guide Hitaxas 
  • 3 Replies
  • 1855 Views
Sonic 1 "Mega PCM" driver
A new DAC driver for Sonic 1, version 1.1 is out!
vladikcomper 
  • 46 Replies
  • 22206 Views
SMPS in Sonic & Knuckles Collection
New 9/23: Separate Super music and custom songs
MainMemory 
  • 21 Replies
  • 7079 Views
Esrael Neto Assembler Editor v0.10 Esrael 
  • 13 Replies
  • 2501 Views
Porting any Sonic Megadrive game to SNES
I'm just curious if it's possible
Hez 
  • 53 Replies
  • 10812 Views
Sonic - Into The Void
About my hack
Blueblur93 
  • 68 Replies
  • 13942 Views
Sonic The Hedgehog 1 for Sega/Mega-CD
UPDATE: 12/05/2013
HCKTROX 
  • 21 Replies
  • 9419 Views
Aspect Edit Help
Editing Sonic 2 Master System
EsseOuriço 
  • 7 Replies
  • 1473 Views
The Chaos Layer (Alpha) MarkeyJester 
  • 18 Replies
  • 4498 Views
Gens Rerecording / Lua issue
This really scuppers a project of mine, I'd appreciate any insight
Mercury 
  • 20 Replies
  • 2637 Views
Manifest Destiny: Split Disassemblies of Non-Sonic Games
aka Let's Make A Split Disassembly of Pokémon Fire Red!
Quickman 
  • 16 Replies
  • 4768 Views
I HOG THAT HATE HEDGE!!! MarkeyJester 
  • 31 Replies
  • 7962 Views
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