NSMB - Mario Vs Luigi Online
What is this game?
A standalone 2-10 player remake of the Mario vs Luigi gamemode from New Super Mario Bros DS. Includes the 5 default levels (Grassland, Bricks, Castle, Pipes, and Ice), along with custom levels: Jungle, Sky, Volcano, Desert! All powerups are implemented and fully faithful to their originals, along with the addition of NSMBWii's Propeller Suit / Ice Flower!
Join the Discord!
Join the discord to keep up to date with the development of the game, make feature suggestions, report bugs (if you're too lazy to use issues...), get technical support, look for people to play with, and just talk about the game!
| Status | Released |
| Platforms | HTML5, Windows, macOS, Linux |
| Rating | Rated 4.8 out of 5 stars (1,038 total ratings) |
| Author | ipodtouch0218 |
| Genre | Platformer |
| Made with | Unity, Blender |
| Tags | 2D, Arcade, Fangame, Multiplayer, Side Scroller, Unity |
| Average session | A few minutes |
| Languages | English |
| Inputs | Keyboard, Gamepad (any) |
| Accessibility | Configurable controls |
| Multiplayer | Server-based networked multiplayer |
| Links | Source code, Support |
Install instructions
Make sure to extract all files out of the zip before running.
Mac users might have to disable some code signing or verification thing? I'm not exactly sure, I'm not a mac guy. I'll get some specifics soon.
Linux users have to make the file executable, using "chmod +x linux.x86_64". You're running linux, you can probably figure it out.
Development log
- Release v2.0.4.0Aug 20, 2025
- Release v2.0.3.0Jul 25, 2025
- v2.0.2.0 HotfixJul 12, 2025
- Release v2.0.1.0Jul 12, 2025
- Release v2.0.0.0Jul 07, 2025
- v1.7.0.0-beta Release!Sep 01, 2022
- v1.6.0.0-beta Release!Jun 11, 2022





Comments
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any plans on just making this p2p or an ability to self host in some way
i made a video of a modded version called miibumm's mega item mod so i'll upload this video soon when i finish playing Pkmn rumble blast
hi :DDDDDD
hi
sometimes i just get this glitch where everything flickers between two instances of the same game and it becomes unplayable
details: web version on firefox browser on linux OS
try the windows version of the game via proton, that one works flawlessly for me on Arch Linux
IMPORTANT MESSAGE AT THE END
so im a big fan of Looney Tunes (to be specific, the 1963-1969 era.)
so here's a green screen intro of the 1963 intro
and my own version of the green screen (just matching the 1969 one)
(0_0)!
in FACT, what about a CONTEST!
You guys will make a version of one of these two logos, (or both, if you like variations ;)
the deadline: (not added until someone sees this)
even ipod can join
so make sure you turn yours in!
credit goes to Warner Bros Discovery.
ALSO: Read this for the rules.
This is IMPORTANT!: https://docs.google.com/document/d/1k1NOGjgJt4ZPlioM55kuwB5XiPTzgWMrBB4hb311tkk/...
please credit to Warner Bros and both the video's creators if used.
also for the embedded one, right click and select save video as, and chose mp4, or type it in if you're confused, (also use a logo remover if wanted)
here's some examples https://www.canva.com/design/DAG8MLJZkHg/74h0R6xj6kACfqgw1zEu_A/edit?utm_content...
what?
well, you just pick one, make a title card, a (Very) simplified version of your logo, use the chroma key at the right time, and BOOM.
done
LOVE IT
hey can ANYBODY play coin runners
I might, if your still up to it.
im still up to it
for some reason someone just banned me saying "friends only" like 19 days ago.
Pls unbann me i promise that i will never repeat and disturbing room's
anyone has a modding tutorial?
can you make mario party online
Likely Impossible Suggestion!
What if you were to port this to an actual DS, do you think you can make a downloadable version that can be loaded on homebrewed DS Systems?
I have a home computer lab in my basement. I want to play NSMB on the computers and I can host a game and connect with the first client but when the second client joins I get an error saying, “You are already connected to this room in another instance of this game.” Any solutions?
Maybe the computers are logged to the same account.
playing on the website or the app makes the owner of the room get all laggy, on the website other players also get this effect
This is a weird bug... I've gotten reports of this happening but the "host" shouldn't have anything special going on that could cause this. Looking into it, but if you have any info about what CPU/ platform you're playing on it would be much appreciated.
Baller
it would be so cool if we could add our own characters and send files
and turn back the main menu and the matches into the mario vs luigi when it released.
so just not having MvLO on version 2.0?
can you add voice chat?
Is there any chance for adding mic features to the game
Merry Christmas guys!🧑🎄🎄
itch.io servers are breaking
well for one thing
the super chapulín colorado Bros
Hey guys I made a group on "OMEN" it's some kind of forum thingy idk but it's not made by me
Here's the link: https://cubedz.wixsite.com/omen/group/nsmb-mvslo-nsmbvs/discussion?origin=onboar...
There seems to be some kind of controller input bug in the browser version: when I use the controller to go to "Hide in-progress rooms", the controller input suddenly stops working except for the "back" button
can we get some justice for coin runners
la moitié de mes meilleur replays en étais effacer et j'aimerais bien les retrouvés
Ipod, can you make it so you can't mute someone in a room unless you're the room's host? Also, the meme reset is happening at the very start of 2026. (1/1/2026 / 1/1/26)
Please add the super leaf, it's one of my fav power ups...
hey man if you want super leaf just post in discord also super leaf would be cool
what meme reset?
...i think the mute when you're not host is more of a block..
I love this game
why is this comment section just a place to show off some art?
ㄟ( ▔, ▔ )ㄏ I don't know
bruh ai thumbnail
yes
I'm sorry, I didn't know that.
yeah but how is he supposed to know?
bc i can see does
made in scratch?
yes
I KNEW ITTT
fard
Greg <3