I have an old laptop running Ubuntu 20.04 and after trying off and on now for over a year (life is busy) to get this game I used to enjoy playing so much working, I just can't.<p>Minecraft used to just work, sure there were issues but I could throw it on anything and get it working with very little fuss. I just had to go through 5 emails of various resets and one time codes, install dependencies onto my vanilla Ubuntu install not called out in your Ubuntu install pages. This is just upsetting and frustrating.<p>/rant
I'm still running Minecraft on my Fedora laptop, and I know my way around Ubuntu fairly well.<p>I recently migrated Minecraft from a Mojang login to a Microsoft one (as we are all apparently forced to do that now).<p>The only hassle was that Microsoft create a fake security alert in order to require me to provide them my phone number. I read elsewhere that's something Microsoft commonly do.<p>Perhaps you could share some details of your problem?<p>EDIT: it just occurred to me that you're probably lacking Java 17, which is the minimum for Minecraft 17 and later.<p>It should be just a matter of:<p><pre><code> sudo apt-get install openjdk-17-jre
sudo update-alternatives --config java
</code></pre>
and set Java 17 as the default JRE.<p>But if not, you will need a PPA from Matthias Klose, here:<p><<a href="https://launchpad.net/ubuntu/focal/+package/openjdk-17-jre" rel="nofollow">https://launchpad.net/ubuntu/focal/+package/openjdk-17-jre</a>><p><<a href="https://askubuntu.com/questions/705072/is-the-openjdk-r-ppa-trustworty" rel="nofollow">https://askubuntu.com/questions/705072/is-the-openjdk-r-ppa-...</a>><p>Should be:<p><pre><code> sudo add-apt-repository ppa:openjdk-r/ppa
sudo apt update
</code></pre>
and then the aforementioned steps to install the package and set Java 17 as default.
Try Mineclone 2. It's an open-source libre Minecraft clone which runs on top of the Minetest voxel engine and has 99% (almost) feature parity with MC 1.12, can be expanded with hundreds of mods and it runs natively in Linux. You'll be surprised at how polished it is already. In fact, it's so similar to the original Minecraft 1.12 in both gameplay and appearance that it surprises me that Microsoft/Mojang hasn't threatened a lawsuit (yet). I downloaded it just out of curiosity some time ago and now I play it more often than Minecraft itself because of all the fun mods I can try.<p><a href="https://www.minetest.net/downloads/" rel="nofollow">https://www.minetest.net/downloads/</a><p>Alternatively you can try MultiMC as an alternative Minecraft launcher, never had an issue with it.
Use the multimc launcher instead of the default one:<p><a href="https://multimc.org/" rel="nofollow">https://multimc.org/</a>
I still haven't bothered switching my account over. It's a pretty awful move, not sure if I'll ever create another Microsoft account just to play the game.<p>Thanks for keeping things simple for my 700-some hours I've put in since middle school, Mojang. Your barebones but respectful competency will be missed.