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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

Hack Testing in SMW Central Discord!

If you're a member of the SMW Central Discord server, we've recently opened a space to connect creators with people interested in testing hacks.

At this stage we're actively recruiting people who are interested in volunteering to test hacks from the community, if that sounds like you join the server and read the guidelines for becoming a tester and apply!

QLDC #3 Results!



The results are out for 2025's Questionable Level Design Contest: See Who Won! →

We're HIRING!!!!!!!!!!!!!

This is not part of an april fools joke. In matter of fact, we have some news for you.

Applications for SMW Hacks Helper are now CLOSED!!

We will be hiring two helpers, specifically for standard hacks, so if you want to try it follow the instructions within the first post in this thread to apply!! Your application can be sent through site PM or discord DM. Feel free to message me if you have any questions prior you apply. I'll be looking forward for your messages!

04/07/2025 Edit: I'm adding one additional position for a helper for smw kaizo hacks, so there's in total three available spots.
04/12/2025 Edit: applications closed.

Latest Content

You Have No Life

Screenshot You Have no Life - A hack which shows diverse aspects of pure living, making you even question about things like: ''Problems with termites? search the best place to evacuate them!'' … (read more…)

Overworld Layer 1 Events

Screenshot This patch allows you to make events that change layer 1 tiles on the fly: it basically works the same as the vanilla silent layer 1 events, but the changes are applied immediately instead of having… (read more…)

Sparkster - Lakeside

Lakeside Adventure from Sparkster. Update: Corrected all the ADSR values and made the overall volume a little more accurate. Whew, fixing all that was quite a doozy. Additionally, you can set… (read more…)

Custom Switch Block

Screenshot A Switch Block replacement that replaces the ! with a mushroom.
No credits Needed

Rip Van Fish Z

Screenshot A disassembly of the Rip Van Fish Z minor extended sprite. Spawned by sleeping Rip Van Fish, it floats up and pops. Check the .asm for how to make the vanilla or disassembly Rip Van Fish spawn… (read more…)

Johnny Test Whip Crack

The whip cracking sound effect from Johnny Test that probably gave you brain damage as a child

spct

Screenshot spct is a little command-line tool for Linux, MacOS, and Windows that can play and render SPC files. Very useful for platforms that other SPC players can't compile for. Licensed GPLv3 - source… (read more…)

Event Camera Pan

Screenshot This UberASM allows you to make the camera scroll to a specified location when running an event (either at the start or before a certain step in the middle of the event), and then return back to its… (read more…)