rd-132328 via the Betacraft Launcher or Omniarchive. That is the spiritual equivalent of Alpha 0.0.0, and it is legal, safe, and historically significant.
A: Yes. Betacraft works cross-platform. Use the same steps. Download Minecraft Alpha 0.0 0
A: Fake download counters. Many of those are bots or repeat clicks. The files are usually viruses. rd-132328 via the Betacraft Launcher or Omniarchive
A: No. Survival was added in Indev 0.31, nearly 8 months later. and it is legal