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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!


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Recent News

QLDC 2023 is happening now!

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Update: QLDC submissions period ended! Details about the contest close and links for downloading the entries can be found here.

Winter C3 and Other 2023 Event Updates

I know everyone doesn't like it when we make big sweeping changes to the events calendar, so good news: we won't be doing any of that in 2023! Instead, we'll be getting it out of our system early before the new year rolls in!!

Due to a combination of staff availability, convenience, and Eastern European Religious Events, we will be moving Winter C3 to February 10th-14th. And while Summer C3 will remain in July this year, starting in 2024, all future C3 events will be hosted in February/August. We feel that moving both events forward a month will make it more convenient for us to prepare for these events, and offer better timing for everyone to participate!

So what does that mean for other events? Well, you now get a contest early! QLDC 2023 now starts next week Friday, January 6th! We will also be moving CLDC 2023 forward to March 20th to make room for...something else.

And one last note: you can now check the front page of the site's calendar for all of the listed events! Make sure to check regularly for new events (and possibly other things?) we decide to add to the calendar. Thanks for kindly accepting all of these new changes to the calendar, and have a Happy Two Days Before New Years!

Latest Content

Mario Memorandum: New Game Plus

Screenshot 15 exits + 3 short switch palaces Now that everyone has beaten Mario Memorandum new game plus has been unlocked! You retain all the skill that you gained from beating it the first time making it… (read more…)

Event/Step Specific Tile Reveal SFX

This patch allows you to customize the tile reveal SFX for each Overworld event, as well as changing it for each step in the events. Check out the asm files for more info. Example video here… (read more…)

Pipe Entrance Sprite Freeze

Screenshot Freezes all sprites at level start until player has finished exiting from a pipe. Fixes inconsistency whether a level is entered as a sublevel from a pipe transition or from the overworld. Can… (read more…)