If you prefer doing things the hard way (or want to manually backup the JAR), follow this manual installation guide.
Accessing and running Minecraft Alpha v1.0.1_602 for research is possible but should prioritize official channels and legal compliance. When relying on community archives, verify provenance, use isolated execution environments, and document all steps for preservation. minecraft+alpha+v101602+download+install
If you are looking to download and install (frequently searched as v101602 or alpha v101602 ), you are likely seeking a trip back to the summer of 2010. Here is everything you need to know about finding this specific version, why you should be careful, and how to install it safely. If you prefer doing things the hard way