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Welcome to SMW Central!

SMW Central is the largest ROM hacking community on the internet, and the gathering place for all the resources you need to create your own ROM hack. We offer a large selection of completed hacks as well, ready for you to play! Traditionally SMW Central focuses on hacking Super Mario World, but over the years we've collected a ton of resources and hacks involving other games, too. Our community is ever-growing — sign up now and be part of it!

Recent News

Classic Mario ROM Hacking!! Plus other Non-SMW Hacking changes

It's forum cleanup time! #lm{recent} As our first step in updating our many subforums, we have made some changes to the Non-SMW Hacking section. You can read all the details in this new thread.

However, as part of those changes, we've added a new subforum! Introducing the Classic Mario Hacking Forum, dedicated to hacking all four NES/FDS Mario games (plus Super Mario All-Stars) that aren't called All Night Nippon Super Mario Bros.! We've got rules, essential tools, and recommended hacks all set up, so go check everything out!

As Rihanna would say: Super F:Oing Mario!!!!

OWDC2022 Results are here!

Look at us finishing all the contests. Come check out the results here!

VLDC13 results are here!

Hope we didn't keep you waiting too long, head to the thread to see the results!


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Latest Content

Sicari 2 - The Brink of Time

Screenshot The sequel to Sicari Remastered! This hack introduces new features, such as the ability to play named levels in any order and Sicari's new dagger attack. Hopefully you enjoy it (: Plot: Set… (read more…)

Reznor's Fireball

Screenshot This is a disassembly of extended sprite 02 in SMW, Reznor's Fireball.

UberASM Tool 1.5

Screenshot This tool lets you insert level, overworld, game mode, status bar, sprite and global ASM without using a patch. See the read me for more details. Version 1.5 changes: - Fixed an in-game crash… (read more…)

Magikoopa Wand Fix

Screenshot Fixes a graphical bug that if there's vertical scrolling and the Magikoopa happens to be offscreen vertically, its wand graphic will wrap the screen (a glitch that only happens during hacking,… (read more…)

Net Tile Disappear

Screenshot This tile acts just like the regular climbing net tile, however it will turn into a puff of smoke and disappear once Mario punches it. Works if Mario is in front or behind the climbing net tile.… (read more…)

Custom Autoscroll

This patch allows users to comprehensively edit Yoshi's Island's autoscroll sequences. This download also includes a patch which turns sprite 1D5, which is unused, into an additional autoscroll… (read more…)