You can play the historical version by opening the Minecraft Launcher, going to Installations , checking the Historical box, and selecting old_alpha a1.0.16_02 .
If you prefer not to use the launcher or want to play in a browser, there are community-maintained options: Browser Port : A fully functional web port of Minecraft Alpha 1.0.16_02 minecraft java alpha 10 16 02 download new
Create a new folder named 1.0.16_02 and paste the files inside. You can play the historical version by opening