Launcher VS PlaceholderMC

If you cannot - https://github.com/MultiMC/Launcher/wiki/Unsupported-Intel-GPUs

MultiMC

maybe : https://github.com/MultiMC/Launcher/issues/41

Here is a link to Modloader for MCb173. It needs adding directly into the minecraft.jar file, however if you use a launcher like MultiMC, which you can find here: https://multimc.org/ then there is an option to 'add to minecraft jar file' which does the same thing.

I used to have this issue lots, and it was due to my internet being too restrictive. The Minecraft Launcher was refusing to open, and I fixed it by messing with the restrictions until it worked. Hopefully this helps :) if all else fails of course, try just reinstalling it! I’m sure that all your config files don’t get affected by reinstalling it, but just in case make a backup. And if all ELSE ELSE fails, you could switch to a completely different launcher, like MultiMC! Good luck!

If you are willing to try out the launcher - MultiMC which you can find here (there is a Mac option available) : https://multimc.org/ then I have put together an MCb173 pack that has been made for MultiMC. You just use the 'import from zip' option.

Download MultiMC from their official site https://multimc.org/

Others than that, if you insist, you can take a look at the launcher which u/reginakinhi provided or find others on the internet (GitHub for example). Since PrismLauncher is written in C++, and if you are not familiar with it, you should see other launcher as well. Or else https://github.com/MultiMC/Launcher is an alternate.

The best way to experience beta 173 is to play beta 173, and perhaps add some mods to it a little later. One of the better launchers to use for old versions and for playing modded is to use the MultiMC launcher which you can find here: https://multimc.org/

This will only assist if you are using MultiMC as your Minecraft launcher as it is a MultiMC instance which you can use the 'import from zip' option. MultiMC can be found here: https://multimc.org/ It includes IC2 1337 with several add-on mods which have also been back-ported to work with it, such as the Thermometer, Advanced machines, etc. You can disable the add-ons you do not wish included. There is also buildcraft and redpower added as well.

GD is too busy for my taste--I'm honestly looking at some command-like launchers like ferium (also from GorillaDevs) or portablemc (because 🐍 python 🐍), but I'm also giving it a day to see how quickly "PlaceholderMC"* gets off the ground.

If you're referring to a screenshot of the modrith announcement in discord, it's just wrong, you can just change the metadata server setting to 'https://meta.scrumplex.rocks/v1/' and not update it, the devs (other than the one who went rogue) created a fork, so you can use that once they publish new builds

The remaining devs have forked it into https://github.com/PlaceholderMC/PlaceholderMC.

Looks like PlaceholderMC is the replacement for now (it's the fork of PolyMC created by the non-bigoted developers who got kicked out).

https://github.com/PlaceholderMC/PlaceholderMC is probably the most direct replacement - it's where the sane PolyMC devs have gone.

The owner whose account might be hacked or might just have decided to do this kicking out all the active devs from the github project at the same time is some important context to go with the issue.

The other maintainers have already started a fork.

https://github.com/PlaceholderMC/PlaceholderMC