A downloadable game for Windows

Buy Now$19.99 USD or more

Lone Fungus is a true Metroidvania set in a world built by mushrooms where you play as the last mushroom alive! Explore an ancient world filled with secrets, acquire new abilities and use those abilities to reach new areas!

9+ hours of gameplay!

The Early Access version features 20+ bosses with more to be added, tons of upgrades and 8 huge areas to explore.

Lone Fungus is a game currently in development, buy this product if you'd like to support me as a developer or if you are interesting in testing and playing the game before it is finished.

The Early Access version you buy here will get updated at least every month until the game is finished, when that happens you will own the full game here on itch.

You will not gain access to the game on Steam by buying it here.

Join our community!
If you decide to become a tester please do join our discord where you can talk to me and give feedback on the game!

CONTROLS : Controller (X-Input)
Attack : X
Jump : A
Heal : B
Spell : Y
Inventory : Back
Map : Right Thumbstick
Pause : Start
Alternative Slash Down : Left Bumper

CONTROLS : Keyboard
Move : Directional Keys
Attack : Z
Jump : Space
Heal : V
Spell : X
Inventory : Tab
Map : M
Pause : Escape
Slash Down : A

Updated 6 days ago
StatusIn development
Rated 5.0 out of 5 stars
Made withClickteam Fusion
Tags2D, Action-Adventure, Metroidvania, Pixel Art, Singleplayer
Average sessionAbout a half-hour
InputsKeyboard, Xbox controller
AccessibilityConfigurable controls


Buy Now$19.99 USD or more

In order to download this game you must purchase it at or above the minimum price of $19.99 USD. You will get access to the following files:

lone-fungus-windows.zip 382 MB
Version 45

Development log

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Own on Steam. 10/10 worth every penny. Easily get 30+ hours doing every zone. Completionist time is probably way longer. More abilities than any other Metroidvania out there. Tons of ways to approach each boss. 

i thought it said free demo

There used to be a demo on steam but it's not available anymore



What version number is the Steam demo?


Love the look of this — if there's ever a web, Mac, or Switch version I'll be all over it!!


Thank you!


This game has some serious Ori vibes in how it progresses. 

Fantastic job. 

Map needs a zoom in and out feature. Just a suggestion. 

Thank you!!

This game is amazing!
Good job with the art and gameplay!
Can't wait for the full game!


thank you so much!

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I loved this Demo, it has enormous potential, I can't wait to play the full game!

memes aside. This looks great! The movement is clean, especially when you get all the abilities, the combat is good too. Overall just very well designed and plays good for a demo, with some tweaking it could be a fantastic game.

On to the fun part that I'm making this comment for: it turns out you can actually get through the underwater section in the bottom right of the map! I can tell you're definitely supposed to have some water breathing ability since the timing is very tight. Basically, using either the dash or the backdash relic (much harder with the latter) you can just barely get to the second air pocket and refill your breath bar by bouncing on a spikeball.

Hear me out though: I think you should leave this in. Most casual players would try to get through a few times and realize they're not supposed to, and even those more determined to sequence break would think it's impossible. It took me nearly half an hour to perform it a single time with the backdash, and that was with invincibility on. I think it would be a cool thing for future speedrunners to use, but won't affect normal gameplay.

P.S. I like that there's just a hole in the floor with no room transition cus you're not supposed to be here lol

Thank you! Hahha yeah some people found that too, yeah you are suppose to have a water breathing ability there. I'll make sure that part can't be cheesed through :'D



I loved this Demo, it has enormous potential, I can't wait to play the full game

In all seriousness, I liked this. Hollow Knight and Celeste (because curtain levels) are my favorite pain games, so having them FUSED is just a treat.

by the way why cant you attack upwards i do not like that

because of mushroom

I loved this Demo, it has enormous potential, I can't wait to play the full game

I loved this Demo, it has enormous potential, I can't wait to play the full game

I loved this Demo, it has enormous potential, I can't wait to play the full game!

I tried to contact a great Brazilian streamer, Cellbit, who supports and promotes campaigns from Catarse (Brazilian Kickstarter), Kickstarter, and other project support sites. I'm hoping he will see and help Lone Fungus

Ok so my first impressions. I really like how you have the four difficulties right off the bat to choose from, and the explanations are also great. In terms of the menu, I think the style feels not very well put together, and the animations are a little clunky and lifeless. That being said I think the color palette is fantastic, it feels strange and mystical and ties with the theme of the game very well. 

When 'MP' was first mentioned i had no idea what it was, but i assumed it meant mushroom points or something. It might help to explain some of the basics like that MP means health. 

I think there should be a button to speed up text as well. Pretty standard. Also a fullscreen mode.

In terms of gameplay, I think it's PHENOMENAL. I can't wait to see what bosses look like, or later levels with larger areas, platforming, new abilites, puzzles, etc etc. The music is really really good, and this game honestly reminds me of metroid a little bit, being alone in an alien world with no idea what's going on. The graphics are incredible, i love the lighting and the enemies, the guides along the way. Really my only gripe is... Man this mushroom is slow. Please give him a dash or something like that, it would really help make the gameplay more fluid. Anyways this game is really sick and I hope it evolves into something even greater. :)



Thank you :D!


It really reminds me of hollow knight which I really like. It feel a little linear from like 40 minutes of plays, maybe keep it linear near the start maybe up to the first boss and then have it expand into a open world. I also wish that when you parry attacks it damages a enemy if it connects since the parry is very hard to pull off it would make the player feel much better when they pull off the parry. I got up to the 2nd boss and I wish the boss had a different look, but like I said before with the parry doing damage this boss could help the player learn to parry as lets say to get the first few hits in you need to parry, looks like a great game so far keep up the good work!!

Thank you it's linear cause it's a demo and it's the first area :)! The game does expand into an open world later, thanks for you feedback!

Feedback from what i have played so far: The music is a tad repetitive, the world is too linear, not enough non-hostile NPCs, and some non-environment based skills would be awesome. I get the game is in beta so none of the things we have seen so far are final, but other than those little nitpicks, a really enjoyable little game, easily at least an A tier game if it is polished and the potential is properly brought through. Keep up the good work.

Thanks for the feedback, appreciate it :)!


Hey, really enjoying what I have seen from the game so far and I look forward to playing it more in the future, but for some reason I could not get the audio to work in the game. If you know of a fix for this, thanks so much. Really fun so far! :)

Thank you! That's odd, could I get more info about your system? Like audiodrivers or anything might help.

I'm using windows 10 and have version 10.0.19041.789 of my audio drivers. Hope that helps!


This is quite a beefy demo. The visuals are lovely, the pacing is good. I liked the difficulty increase from the first boss to the second... and the story is intriguing. There must be more shrooms, we can't be alone! Can we? 


Thank you :D!!


Not sure how I managed it but in the challenge course I got stuck in the green orb mode.  None of the buttons would back out of it, all I could do was move the orb around.

Good game so far, though.

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I will look into that! Thank you for reporting! Just a question, did you play with controller or keyboard?

I added it as a non-Steam game so I could use the Steam Controller.


Hey Dev!

I Included you on this week's Indie game Playlist!

I love this game, the atmosphere is great and the movement feels really smooth. The boss fight was also a nice touch. Looking forward to playing through more of the game later this week!

- Elit3hoboguy

(1 edit)

Thank you, much appreciated! Btw i saw some flickering of some objects in the game in your video, try updating your GFX card drivers and let me know if it helps! (think it's an engine bug, i'd love to know if updating drivers helps)


Copy from my fb-post:

Just loaded the Demo and wanted to just test it... ended up at the second boss atm. its realy good. Nice, smooth movement. And realy great retro-style-graphics with the love for details. Realy good job so far.

Here comes the bad thing... why do i ever need a credit card in times of paypal? i would use it, if i had one, but i will not get one just for that. isnt there a possibility for other payment methodes?

The mushroom's lil' movements are adorable. I love the way it wobbles at the edge of a platform. I'm not super great at it yet, those butterflies are my nemesis. Can't wait to see the end product!

thank you! Glad you enjoyed it, try parrying their projectile it's great fun once you get the hang of it! :D


loved it! excited for the final game! mine closed unexpectedly, is this a known issue? 

Thanks, not a known issue. But i might have fixed it now :).


Very fun to try out! :3 too bad I suck hahah My gameplay if you want to see 


Made a video

Hey, I was downloading it, but when launching the game I got 2 virus messages. I've been following the development of the game and so I know the game is lit, but... is this OK?


Yeah sorry about that. Clickteam Fusion games sometimes get falseflagged by some antivirus softwares, which sucks pretty hard (you can google it). But yeah you should not worry there is no virus i promise!

I ignored the virus message but then it tells me that the app wants to perform changes to mt device (this usually happens with apps such as unity and such, but not with a game). Can you just tell me what it is trying to access / change?

Well that's just for creating save files or editing the Settings.ini in the folder.



Hiii, I've made a video playing the demo and wanted to share some feedback about it ^^, hopefully it is useful to you :D

-The main concept is really good and feels fresh.

-The gameplay mechanics are very well thought and the implementation with the level design is really awesome as it makes the progresion quite intuitive despite of having such a big map to explore.

-The visual style is really eye catching and very enjoyable as it feels quite polished.

-The movement of the character at the begginning feels heavy but once  you start learning about it you dominate it and the movement ends up feeling pretty awesome and fluid while keeping some of that initial heavy vibe.

In conclusion, the idea is great and I hope you keep working on it. Hopefully this is useful for the development :D, also if you could subscribe that would help me a lot :)


Thank you so much! Really appreciate it and glad you liked the demo!


You are welcome ^^


Hey! I dont know if ya remember me lol, Ive been following Lone Fungus for awhile, and was wondering if you'd let me interview you for my youtube channel! It's not big (only 440 subs) but as a studied game design myself, i'd LOVE to talk to you about the production of Lone Fungus, while showing off the trailer and stuff like that! Just an idea! (:

Thanks! Not sure i have time right now :'). I'll get back to you if i find time in the coming week or so, thanks a lot though!

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am i the first one to download this or what

Hahh not sure, it got put up today :)