Their last game, M&L Bowser's Inside story 3ds bombed really badly.
http://www.nintendolife.com/news/2019/02/mario_and_luigi_bowsers_inside_story_plus_bowser_jr_s_journey_is_one_of_the_worst-selling_mario_games_to_date

Which is unfortunate because they were put in a losing situation by releasing for a dying console. Would have done fine on the switch most likely.

Wow, this is just depressing!

Now the only possibility of a new Super Mario Roleplaying game is Paper Mario, but I think most of us know the disaster that has happened to that recently.

Really unfortunate. I wonder what will become of the M&L series now. It was massively fun and charming, if not a bit generic at times.

This is awful!! I loved that series and that studio. I did my part and bought both of their recent 3DS remakes/remasters, but I guess I was pretty alone on that. 3DS must be pretty much dead because BiS is probably the best game in that series and no one bought it.

I really hope all the developers there can find other work soon because I think even the recent games had charm and some unique ideas for a Mario RPG. 😢 They were certainly better than the recent Paper Mario games.

Good riddance to bad rubbish. Sorry to say this but it is the harsh truth.

Their only good games were Superstar Saga and Bowser's Inside Story.

Partners in Time was an unholy mistake, Dream Team was an overtly long tutorial, and Paper Jam is the most boring Mario RPG to date. The remakes are also trash and butcher the originals in so many ways.

They only have themselves to blame. They wasted all that time and money on expensive spriting, without an ounce of 3D modeling knowledge. They would not survive in the current ecosystem of the Switch. I mean hell, look at their JRPG contemporaries like Game Freak, they're barely struggling to keep Sword and Shield together.

Good job on bailing out your development partners Nintendo.

Oh no, whatever will we do without another uninspired, boring Mario RPG...oh wait, even that isn't the case, because I'm sure there will be a new Paper Mario soon enough.

This is really bad, Nintendo needs to rebuild the team and modernize it for the current generation similar to how the Mario Party team is now nd Cube.

I’ve been waiting for another good Mario RPG for a long time now, even made a mock up of a new battle system I got so obsessed. Nintendo better get on this quick!

This really sucks. I love the Mario and Luigi games, but have to say I didn’t buy the remakes despite wanting to revisit those games purely because my 3DS has been retired the day the Switch dropped.

Sucks that Nintendo haven’t bailed them out it seems. I’m sure the M+L series would’ve continued seeing success on Switch.

Feel bad for AlphaDream they didnt deserve this but I blame Nintendo for clinging onto the 3DS for wayy longer than they should have. All the games released on 3DS after the Switch launched sold like crap. They should've released not only the M&L remakes but Warioware Gold, Mario Party Top 100, Luigi's Mansion remake, and Metroid Samus Returns on Switch as well. Not only would've helped fill in the 1st party droughts we had to endure at the beginning of 2018 and the beginning of this year but all of those games would've performed 3x better on Switch.

I like how people on this site kept arguing with me too "But the install base on 3DS is huge!" Yet I kept telling people it didnt matter because that install base all moved on and now look what happened..Nintendo basically killed one of their key partners..

I'm very sad for the people losing their jobs. That said, I haven't been interested in the M&L games for quite some time now. I think they were just spinning their wheels, pumping out the same uninspired sequels. They really should have done something different. Two remakes on a system in its twilight years probably wasn't the best move.

Maybe key staff will move on and make a studio with good connections to Nintendo from the offset, like members of Artoon did with Arzest where they continued making games with them like Yoshi’s New Island. Here’s hoping; the M+L games are much better Mario RPGs than the more recent Paper Mario games.

This is shocking news! I can't believe Alphadream of all the companies go bankrupt.

I'm now sad that the future of Mario RPGs looks slim...

Wow, as someone who does own a Switch, am I the only one who was glad that Nintendo supported the 3DS to the very end? I still play mine (along with Wii U occasionally) as I'm not the kind who forgets about a system just because a newer one is out.
Wii and Wii U were pretty barren towards the end of their lifespans (especially Wii, remember how North American players had to practically beg for the Project Rainfall stuff? Nintendo was ok with just letting the system be dead right after Skyward Sword).

Even though not many people seemed to be interested in buying 3DS games anymore I'm glad they didn't just let it fizzle out. They still released a few GBA games after DS released, and DS still got new Pokemon games after 3DS released, I don't remember this many people whining about it.

i very sad that the developer responsible for my favorite RPG series is going bankruptcy i hope Nintendo save AlphaDream so the Mario e Luigi can continue and debut in the Switch.#SaveAlphaDream

Man, it's sad to see what happened to Alphadream so suddenly. I hope something like Artoon-Artzest or Hudson Soft-ND Cube happens with them and the staff finds home in a new company.