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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

Questionable HackJam #1 Results are Here

A soft fuzz has grown across the top of that open jar of Jam in your fridge. "Surely it is still good to use on my sandwich" you think, scraping it away you see: Questionable Results!

Questionable HackJam Results →

The 2024 Automatic Level Design Contest has started!

Dear [user]

This is an automated message to let you know that the 2024 Automatic Level Design Contest has begun. Please refer to the Automatic Level Design Contest rulebook to get started on your Automatic level.

Thank you and have a nice day!

72hoOWDC #1 - RESULTS!

Hey again overworld fans, that's right you guessed correctly, me speaking means that the RESULTS for 72hoOWDC are READY and HERE! Take a look, right here: Results Thread

Latest Content


Screenshot Game updated to version 1.1. Please see the included changelog for a complete list of changes. SRAM from previous versions of the game should be compatible with this update. The year is 2023. The… (read more…)

Space Megaforce

A collection of all the samples used in the soundtrack of Space Megaforce/Super Aleste. Contains 28 samples total.

Perfect Slippery Blocks v3.1

Screenshot Unlike "Single Slippery Block", this one, you don't need an anti-slippery block placed above the slippery block for a workaround prevention. It also has proper slippery corners without making the… (read more…)

Triple Ball 'n' Chain

Screenshot This patch makes it possible to have a triple rotating Ball 'n' Chain by using sprite E0 (normally three rotating gray platforms) and setting the extra bit to 1. Update 2027/4/7 (CircleFriendo):… (read more…)