- Iron Bramble's Demo is Out Now! A New Game from the devs of Rusted Moss! - 16 September 2026
The demo for Iron Bramble is available now! https://store.steampowered.com/app/4328820/ Can't make it to Tokyo Game Show this year but still want to get your hands on Iron Bramble? Look no further! This demo lets you experience the game's core mechanics across its first two areas, giving you a taste of its momentum-based exploration and intense action. - Please note that as the game is still in development, certain elements may differ from the final version. - Since certain features differ from the final version, save data from this demo cannot be carried over. PLAYISM Visit the PLAYISM Website PLAYISM Publisher Page Follow us on Twitter Follow us on Bluesky Follow us on Facebook Join our Discord
- Iron Bramble - Coming to Steam in 2027! - 11 May 2026
Hello everybody! Wishlist Iron Bramble to support us now! (I’m just going to lead with this while I still have your attention before I senselessly ramble on.) https://store.steampowered.com/app/4328820/ Very excited to finally be able to publicly talk about Iron Bramble, a new grappling hook metroidvania that we’ve been working on for the past few months. We wanted to make a metroidvania with a focus on momentum based platforming and crazy physics that lets players go nuts without the traditional upgrades like double jumps and dashes. Iron Bramble is the spiritual successor to Rusted Moss, another grappling hook metroidvania we released a few years back. Rusted Moss was meant to be a small experimental game. As most games do, it quickly became the victim of scope creep and we were surprised that we somehow ended up with a full game that got released on Steam. Since Rusted Moss’ initial…
- Future of Rusted Moss (and things we are working on) - 3 February 2026
Hello everybody!I'm happysquared, one of the developers of Rusted Moss, here to give some news. Well, more of an announcement of an announcement (people definitely love those right? /s)So here it is:We are currently working on a spiritual successor to Rusted Moss!(stay tuned more more details we'll share sometime this year)We've added two new members to our team: Hokori (who is also the mod of our discord) and Riuku (he worked on the Rusted Moss level editor and has a game of his own: Ants Took My Eyeball)That's all the information I'm going to share at this point so hopefully the actual official announcement will answer any other questions you might have. You can stop reading if you're just interested in Rusted Moss related stuff!Okay, if you're still reading up to this point, I'll just go ahead and also let you know about some other projects we've been working on.Emlise (she's also on…
- Rusted Moss Merch Store Holiday Sale! - 2 December 2025
Hello everyone! To celebrate the holiday season the Rusted Moss merch store will have a storewide discount of 20% for the rest of the month. Visit https://rustedmossmerch.com to get your official merch! Happy Holidays! PLAYISM Visit the PLAYISM Website PLAYISM Publisher Page Follow us on X Follow us on Bluesky Follow us on Facebook Join our Discord
- Get your Rusted Moss merch! and...new major console update! - 3 October 2025
Hey all! We just opened up our online store: https://rustedmossmerch.com This is your chance to grab some Rusted Moss Merch! We have shirts, mugs, postcards, and a hat! Major Console Update Thank you all for your patience and support! We're incredibly excited to finally update the Nintendo Switch, PS5, and Xbox Series X|S versions! This update introduces two new areas and boss fights! Also included in this update: Added Ameli as a playable character Reworked Robin boss fight Miscellaneous bug fixes PLAYISM Visit the PLAYISM Website PLAYISM Publisher Page Follow us on X Follow us on Bluesky Follow us on Facebook Join our Discord
- In-Game Palette Editor - 22 August 2025
Easy to use in-game palette editor!We had previously posted how to change Fern's colour palette. And also made a quick guide.But... it wasn't the easiest thing to fiddle around with.So, our community has outdone us once again.Huge thanks to Snowill for creating a mod that easily lets you edit your character's colour palette from in game! And thanks to Harlem512 for making a mod loader that makes installing mods on Rusted Moss a total breeze!Check out this less than 90 second video on getting it installed. It is honestly a joke how easy it is to get working.Rusted Moss mod managerRusted Moss palette editor github repoCustom palettes made by our players!We asked our Discord to share some of their custom palettes they've made for Rusted Moss' playable characters! Feel free to join to share your creations too! (Discord link)Maya palette based on Voi Palettes based on OCsFern cosplay Maya, p…
- 3.94 Hotfix Patch Notes - 25 July 2025
July 25, 2025 - Hotfix Patch Notes Build ID: 19350380 Thank you all for playing Rusted Moss! We have rolled out a spring cleaning hotfix which fixes some issues as well as adds some QoL features. Bug fixes and Changes Fixed bug where character respawns in wall Fixed an issue where enemies fail to die when they should Attacks no longer deal more than 999 damage Added an anti-respawn code to prevent soft-locks in certain rooms Fixed some things not being visible when playing as Ameli Fixed some issues with the end credits Fixed some issues with the main menu QoL improvements Made it so you can backtrack from the first part of Tundra easier. Adjusted the third interlude timers to be more lenient if Flying is enabled in accessibilities. We will continue to keep a close eye on your reports and feedback. If you would like to report a bug/issue, please use our pinned Bug Threads in the Discuss…
- Rusted Moss Multiplayer! - 21 May 2025
Excited to share that Harlem512 has created a mod that lets you play Rusted Moss with your friends! Get started by checking out their steam guide here: Playing Rusted Moss with Friends Harlem512 also created Rusted Moss Mod Loader and has a guide on using and making other Rusted Moss mods here: How 2 Mod Rusted Moss Our minds are blown by what has been possible!! PLAYISM Visit the PLAYISM Website PLAYISM Publisher Page Follow us on Twitter Follow us on Bluesky Follow us on Facebook Join our Discord
- Rusted Moss full soundtrack now available! - 1 April 2025
Some people might have noticed our soundtrack disappear off Spotify recently. We had removed it in order to update the album with the new tracks from the latest updates. Rusted Moss OST (Spotify) You can help support sunnydaze by purchasing the soundtrack! Rusted Moss OST (Steam) Rusted Moss OST (Bandcamp) Also check out Sunnydaze's youtube channel where she'll be uploading more of her compositions! Thank you all for your patience and support!
- Rusted Moss Winter Update is out!! - 28 February 2025
Thank you all for the patience and support! Hope you enjoy the final update of Rusted Moss. This update introduces two new areas and boss fights! Also included in this update: Bug fixes for Ameli Boss rush related bug fixes Removed some dialogue from Ending D to better match with the updated fight For the modders: Updated to new Catspeak release PLAYISM Visit the PLAYISM Website PLAYISM Publisher Page Follow us on Twitter Follow us on Bluesky Follow us on Facebook Join our Discord
- Get Started with Modding! - 5 February 2025
Image: Playing as a really tiny Fern is no longer an impossible dream Harlem512’s Documentation on Modding Rusted Moss: https://harlem512.github.io/rm-docs/ Have you ever wanted to have a mini map while playing the game? Custom Maya and Ameli palettes to go along with your custom Fern? Be chased by a deadly worm for the entirety of the game? (Ok, maybe that last one is just me). Well, thanks to the talented mod makers in our official discord you can do just that. To make things easy to get going, Harlem512 has made a loader that is very convenient to manage mods. You can basically install mods from within Rusted Moss itself! Image: Yup, you can basically install mods in-game now Check out this steam guide by Harlem512 and get started! It also contains information on how to get started modding Rusted Moss to make your dreams come true. You can also check out this direct link to the githu…
- Winter Update Delay - End of Feb - 28 January 2025
Hey all! Our winter update is getting delayed to the end of February. Development is more or less complete though we need a little bit more time for it to go through QA. Sorry about that and thanks for your patience! PLAYISM Visit the PLAYISM Website PLAYISM Publisher Page Follow us on Twitter Follow us on Bluesky Follow us on Facebook Join our Discord
- Rusted Moss - Winter Update Announcement! - 8 January 2025
We have an unexpected update coming out this winter. Probably January. Take a look at the teaser to see what you can look forward to! (This update was kinda unplanned. We were messing around with lighting systems and accidentally made a bunch of rooms in our experiments. Oops.) PLAYISM Visit the PLAYISM Website PLAYISM Publisher Page Follow us on Twitter Follow us on Facebook Join our Discord
- Rusted Moss - Player Skill Showcase - 13 December 2024
Check out some of our best players showing off their skills in our latest content update we released earlier this year! When we released the free DLC update, we also asked players on our discord to submit their clips so we could make a montage of it. We sent a postcard to each player whose clips were chosen. Thanks all who submitted! It is incredible seeing players make platforming look easy. PLAYISM Visit the PLAYISM Website PLAYISM Publisher Page Follow us on Twitter Follow us on Facebook Join our Discord
- Halloween Update - Ameli is here! - 1 November 2024
Happy Halloween everybody! Please welcome the great witch Ameli as our third playable character to Rusted Moss! Also here are some bug fixes we also addressed in this update: Bonus DLC: Enemies stuck in top ceilings fixed Bonus DLC (hard mode): Red velvet corridor room transitions fixed Maya dash through walls in the Robin fight fixed Level redesign in Mountainside so players no longer have to fight Freia to proceed if they do not have grenades (easier to backtrack) Why this update For Valentine's Day this year, we released a multiplayer version of Rusted Moss that included Ameli and Maya as fighters. We thought it would be fun to import Ameli's code into the main game. Warning! Unlike Maya, Ameli was not made with the main game in mind. Her abilities were designed specifically for PvP in Rusted Moss Arena. This is more of a fun silly update though we did end up changing some of her abi…
- New Update: Redesigned boss fight (SPOILERS!!) - 10 September 2024
This patch contains a completely reworked boss fight. Details in the spoiler section. Bug fixes: Removed slopes from some rooms in bonus content as they were causing collision problems for enemies. Reworked boss: Robin, the Beloved Child (aka Puck) Ending D speedrun mode achievement has 2 minutes added to the timer to accommodate the updated fight Previous Robin fight is available in the boss rush room New Robin fight has empowered mode in the boss rush room The final boss of Ending D was something we felt we weren't 100% happy with. Due to the way Rusted Moss is coded, there were a lot of limits on what we could do. While the boss fight did end up being unique, we also had the impression it was a bit out of place due to it asking the players to use new movement/skills that previous parts of the game didn't really require. We also wanted a more organic and flowing use of the grappling h…
- 1.61 Hotfix Patch Notes - 22 August 2024
August 22, 2024 - Hotfix Patch Notes Build ID: 15454256 Thank you all for playing Rusted Moss! We have rolled out a hotfix which fixes an error that caused the game to crash if any mods were enabled. Bug fixes Fixed an error within mod-manager code that caused the game to crash if any mods were enabled.. We will continue to keep a close eye on your reports and feedback. If you would like to report a bug/issue, please use our pinned Bug Threads in the Discussions. PLAYISM Visit the PLAYISM Website PLAYISM Publisher Page Follow us on Twitter Follow us on Facebook Join our Discord
- 1.60 Hotfix Patch Notes - 19 August 2024
August 16, 2024 - Hotfix Patch Notes Build ID: 15389557 Thank you all for playing Rusted Moss! After hearing your feedback and bug reports, we have rolled out a hotfix which fixes several bugs that were affecting the playability of the game. Bug fixes Fixed enemies getting stuck in the ceiling in certain rooms Fixed player sometimes getting stuck in certain rooms Fixed Map Completion stat Fixed softlock that occurred when talking to Hardmode Froy as Maya Fixed menu double-input issue Changes Added more Mod functionality (For more info please visit Catspeak by Katsaii) Added savefile backup code (For more info please visit this thread) You can now disable the speedrun timer in the pause menu while in Maya mode We will continue to keep a close eye on your reports and feedback. If you would like to report a bug/issue, please use our pinned Bug Threads in the Discussions. PLAYISM Visit the…
- 10 Book Recommendations with Creepy Fairies - 13 August 2024
Can’t get enough of faerie stories? Curious about the inspirations behind Rusted Moss? Check out these stories depicting the fae, from the capricious to the malevolent! In no particular order: 1) 50 Ways to Leave Your Fairy Lover by Aimee Picchi (Read here) Sweet and humorous, this short story gives some pointers on how to break up with an immortal fairy lover in a tactful way. A must-read if you ever find yourself in this situation and would like to not be horribly cursed as a result. 2) Emily Wilde series by Heather Fawcett If you’re a fan of a female protagonist that is dour, irascible, and doesn’t quite get along with other humans (more out of discomfort of social situations rather than spite), you might enjoy this book! Emily is a brilliant academic who collects faerie stories (and the faeries are suitably dangerous). I loved the cool, clever voice that the book is written in. Ther…
- 1.37 Hotfix Patch Notes - 29 July 2024
July 26, 2024 - Hotfix Patch Notes Build ID: 15158019 Thank you all for playing Rusted Moss! We've implemented the last of the remaining changes that were introduced in the "Mod support added + 1.35 Hotfix" patch notes as well as a mod update. Bug fixes Fixed Look around mode refreshing grapple Changes Exposed more functions for modding (For more info please visit Catspeak by katsaii) We will continue to keep a close eye on your reports and feedback. If you would like to report a bug/issue, please use our pinned Bug Threads in the Discussions. Bug Thread PLAYISM Visit the PLAYISM Website PLAYISM Publisher Page Follow us on Twitter Follow us on Facebook Join our Discord
