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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

SMW Central Class of 2022 📷


IT IS TIME! For SMW Central's (what seems to be) annual Class Of event! Where you send us pics, and we compile them into a pretty collage.

Here is the info thread!

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!


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Latest Content

Velocity-Based Climb Patch

Screenshot This patch is actually 3 patches in 1, with numerous customization options and the ability to enable them individually. These are intended to make Mario's interactions with climbable blocks (such as… (read more…)

Aeron's Golden Cookie Quest

Screenshot Aeron's Golden Cookie Quest is an old-school styled hack, that has inpiration in various videogames, including Kirby, Mega Man, Castlevania, Ganbare Goemon, Shinobi, Mario and others. Instead of… (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…)