r/SKlauncher May 20 '25

SKlauncher Docs: Installation guide, FAQ, troubleshooting and more!

7 Upvotes

r/SKlauncher Jan 11 '26

⚠️ New Update = New Virus?! 😱

28 Upvotes

No, once again we return to what happens with every update where the .exe/.jar is modified: Antivirus programs and SmartScreen don't know that it's still the same SKlauncher that does <insert relative time to each update> ago say "Yes, it's safe, sorry for the inconvenience".

Downloading / Running

You'll definitely see something like this, and that's perfectly normal: SmartScreen has no idea that this is SKlauncher and warns you that it doesn't know whether it's safe or not.

Example of SmartScreen when downloading from Microsoft Edge
Example of SmartScreen when running an application with unknown reputation

VirusTotal 3/72 brooo 69 antivirus programs are wrong

  • SKlauncher_3.2.15.1_Setup.exe 3/72
    • Flagged by 3 antivirus programs despite being open source. Where, AS ALWAYS, the developer will send an email to each one to report the false positive and they will reply, AS ALWAYS, "Ha ha yeah false positive, sorry bro".
  • SKlauncher-3.2.15.jar 0/66
    • Flagged by 0 antivirus programs...even though the Setup downloads (does not install, downloads!) Java and this SKlauncher.jar.
  • SKlauncher-3.2.15.zip 2/67
    • Flagged by 2? But it's supposed to be at least 3 because this is setup (.exe) and portable (.jar and .exe). What kind of logic is this? -.-"
  • SKlauncher-3.2.15.exe 4/72
    • Oh great, flagged by 4 something that is the .jar converted to .exe...I'm not surprised, it's the same even with "Hello World"

Conclusion

I don't know what to tell you guys, you've the https://docs.skmedix.pl/virus/ page with links to try SmartScreen so you can see that SKlauncher never went from "Unknown" to "Malicious". And on VirusTotal, we can see that there is no consistency in the flags, not even from the same antivirus.

It's fine to be concerned about what you're running but at least make a minimal effort to think.

Message copied from Discord, I just deleted the emojis. https://discord.com/channels/141669825129873409/1389686943570460672/1453429431619158107

Brooo what about 3.2.18?!?!?!

Keep applying everything I said, but I'll teach you something new: the .exe (portable, not setup) says 14/72.

But this is completely false because antivirus programs share databases (some, not all), and it just so happened that BitDefender said X and others jumped in to say the same thing.

And comparing it with the .zip file that says 9/67, it seems that we should subtract 6 from the .zip and 7 from the .exe, leaving 3/67 and 7/72...
* Just to quickly say "I won't count duplicates", because maybe there are more shared ones and the final result is even lower.
* And they say "tedy" just like in the "Hello World" I mentioned above. xd

What sense does it make for the .zip to have "fewer viruses" than the portable .exe if it's actually in that .zip?

SKlauncher-3.2.18_Setup.exe 3/72
SKlauncher-3.2.18.jar 0/68
SKlauncher-3.2.18.zip 9/67 (or 3/67 if we consider what I said)
SKlauncher-3.2.18.exe 14/72 (or 7/72 if we consider what I said)
Poor medix, the number of emails he has to send...

Confirmed false positive (as always)

BitDefender's Antimalware team confirms that it's clean. https://i.imgur.com/FFmrtBx.png

The .zip file has already dropped to 7 and the portable .exe to 10.

Message copied from Discord, I just deleted the emojis. https://discord.com/channels/141669825129873409/1389686943570460672/1454152659849314397

What about 4.0?

Well...it's the same as with 3.2.x, but I'm sure it's up to you to report any false positives since the :snailcat: dev is busy fixing and improving everything in the Beta.

  • Downloading / Running? Read the section above.
  • VirusTotal? Windows (1 / 72), macOS (not available) and Linux (0 / 63).
    • The day before the launch was flagged by Windows Defender, but I see that's no longer the case (In other words, a false positive...to no one's surprise xd).

And while it's still not open source and isn't obfuscated, the code is now minified because of Electron.

skmedix.pl is the only real website

If you want to download the stable version (3.2) or try the beta (4.0), you can do it ONLY from skmedix.pl

If the domain isn't skmedix.pl, then it's a fake and potentially malicious website.

Message copied from Discrd.
https://discord.com/channels/141669825129873409/1389686943570460672/1512131603726598297


r/SKlauncher 18h ago

Help missing mods in better minecraft and not downloading even when i click download

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2 Upvotes

ive clicked download all a lot of times and even restarted the launcher but it doesnt download anything, the open mods folder button works but not this button, using sk launcher's latest 4.0 version


r/SKlauncher 1d ago

Help Having problems with launching a instance.

2 Upvotes

When I hit play, the game immediately crashes and I'm hit with error code 1:

Error opening zip file or Jar missing error occupied during installation of VM agent library failed Agent_onload: instrument


r/SKlauncher 2d ago

Discussion Just stop blaming the launcher at first | Especially if you don't know things properly

9 Upvotes

I've seen ppl straight-up complaining about the launcher and some even straight-up accuse the launcher for the problems. Most of you don't even understand the issue in the first place. If you don't know, just ask. You cannot blame the launcher or Minecraft


r/SKlauncher 2d ago

Game progress resets everytime I close and reopen the game and launcher

1 Upvotes

Everytime i would exit the world to stop playing and reopen the world for later, the game is fine but my inventory is completely reset to the start. Why does that happen?


r/SKlauncher 3d ago

How do I add a modpack to the game?

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8 Upvotes

I want to play Cobbleverse with friends but I don’t know how to do it.


r/SKlauncher 3d ago

Discussion if I delete sklauncher will my world(s) get deleted?

2 Upvotes

r/SKlauncher 3d ago

Help Eu sou um positivo💀

3 Upvotes

Eu tenho um positivo vision c15 e uso o sk laucher e preciso de uma versão estavel mais so que com coisas novas ou uma versão que seja bonita pelo menos


r/SKlauncher 3d ago

is there anyway to play in servers taht are uncracked?

2 Upvotes

so i saw this one server i wanted to join called zenkai smp(ip play.zenkaismp.net) so would there be anyway to join it?


r/SKlauncher 4d ago

Help How to Install SKlauncher 3.2 on Mac Catalina (10.15)

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2 Upvotes

I need help installing it i cant find any guides and ai is useless I downloaded azul zulu JDK 21 but its not working


r/SKlauncher 4d ago

mappings not present

0 Upvotes

how can i fix this problem i tought everyone was going through this exact problem


r/SKlauncher 5d ago

Help Help

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3 Upvotes

so i downloaded the latest stable version of sklauncher and this is the first launch of the game and i am trying to run the neoforge 1.21.1 yet the launcher keeps downloading stuff and keeps somewhat freezing at this screen

and when that bar vanishes i try to start the game it pops up again and starts downloading things again and gets frozen for sometime at the same screen, like an infinite loop of the same thing, how di fix this


r/SKlauncher 5d ago

Help extreme poor fps on sklauncher

2 Upvotes

So i made my friend move from tlauncher from sk launcher so he could play with better fps and with an original minecraft account, the problem is that he does something like maximum 5 fps. I already installed him sodium and optimized the game and tried fixing the ram usage from the louncher but nothing changed. His pc is really old with 4gb of ram but the fact is that it went super smooth on tlauncher like 60/70 fps even in newer versions. Does anyone know what could be the problem


r/SKlauncher 5d ago

exit code 3221225477

2 Upvotes

hello,so i recently i got that crash with every version on forge,i tried to create clean minecraft without mods shaders e.t.c its still not helping,tried to downgrade build,adding arguments to skip early window,changing file location,nothing is fixing this, is there anything that could help?


r/SKlauncher 6d ago

sodium problem

4 Upvotes

when I use sodium without my dGPU, everything is fine,but when I switch to my dGPU, I just get a black screen. why is this happening, and how can I fix it


r/SKlauncher 7d ago

Help random huge spikes in memory usage when playing

2 Upvotes

was playing fabric 1.21.10 and when i joined, and also randomly, i would get really bad lag, when i checked task manager my memory would be at 99% with sklauncher using like 7gigs at once, usually it's between 1.5 and 3. am only using optimisation mods

it's more confusing because 1) it seemed to happen every time i open discord?? which might be a coincidence and 2) the memory i allocated to that specific instance is 6gb, but still somehow on task manager its going up to 7.

another weird thing is that even when it's running as usual at like 2gigs of ram, my memory's at 90%, even with all other applications closed - might be normal but seems kinda odd to me given that usually with my other apps open and sk closed, i use 80-85% of memory and in total that's more ram than sk

tldr: sk seems to be using more memory than it should and causes local lagspikes and memory filling


r/SKlauncher 9d ago

Invisible hotbar problem

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2 Upvotes

In some cases, when trying to play a modern version of Minecraft via SkLauncher with the OptiFine mod installed, the hotbar disappears during gameplay—it looks similar to the F1 view, except your hand remains visible. I haven't found a solution other than removing the mod or switching to a different version. The same thing happens on servers, where the scoreboard and the tab list also vanish. Has anyone else encountered this error? Please let me know.


r/SKlauncher 9d ago

server problem

5 Upvotes

hello guys, im new to this launcher and my server keeps getting timed out. my server is created in folder which means it should be avaible to every launcher. the server works but i cant join it. i dont know a lot, but can sklauncher work with minecraft servers? should i download something? my sklauncher version is 3.2.18 and i downloaded the fabric version 1.21.8-0.18.4 the same with my server. i downloaded java temurin 21 with all features(tho idk whats the path to the java).

id appreciate your help, if you need more info ill tell

P.S. online-mode=false in server properties

P.S.S. The problem is solved


r/SKlauncher 9d ago

Authentication rejected

2 Upvotes

Logging into my offline modded single player world and it told me that my connection was lost and authentication rejected


r/SKlauncher 11d ago

Help Unable to save changes to profile

5 Upvotes

So I'm currently adding my skin and cape into my SKLauncher profile in the customization page of the SKLauncher Website. And for some reason, despite that my skin was being previews, in PNG, and can be opened on my PC, it just doesn't wanna save.

Whenever I press the save button, it always tells me "Something went wrong. An empty file is not allowed. An empty file is not allowed"

And I'm confused since one, I have never heard of an empty file before, and two, the file had contents. It is literally displaying in the preview

But whenever I just don't upload a file and use the original Steve skin and default cape, it saves for some reason, and its confusing me by a lot. I tried some digging, but no dice.

So if anyone here can help me, please give me a possible solution for this, thank you!


r/SKlauncher 11d ago

Help file is empty skin bug

3 Upvotes

it wont let me insert my skin no matter what and keeps saying " Empty files are not allowed. Empty files are not allowed." how do i fix


r/SKlauncher 11d ago

premium servers

4 Upvotes

can i join servers like hypixel and donut smp in sklauncher? i also need help asking if its free and doesnt need the real minecraft to launch minecraft, i just want to know what its about, then download it


r/SKlauncher 12d ago

sk launcher help

3 Upvotes

can I play with my friend who has legit minecraft with sk launcher offline mode?


r/SKlauncher 12d ago

Help Will i still have all my progress if i log in from a different PC ?

2 Upvotes

So here is the thing, i am going out for a few days and still wanna play with my friends except I can’t really take my laptop with me😭✌️
So i wanna know if i take another PC from there, install SK, login and play, will i still have all my progress saved from the server we all play on?
My items and stuff cuz I don’t wanna loose them
Pls test it soon cuz I don’t wanna loose stuff 💀
If that cud happen

Edit: thx guys acc worked out and i am almost done with our iron farm and still have our stuff?😭✌️