Edit: without any account!!!
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https://github.com/fn2006/PollyMC - Fork of prism launcher to allow offline play without an account.
Since you are looking to play single player you might also want to check out Minetest with the Mineclone2 addon installed. It is not identical, but it is an amazing substitute and free.
TLauncher is also an option
TLauncher has been known to have malware and crypto miners. Please do not use TLauncher
