Minecraft rd-20090515

AlphaLegacy 1.x

Minecraft rd-20090515 is a Java Edition alpha build released on 14 May 2009 under the pre-classic alpha naming scheme. Mojang lists Java 8 as the required runtime.

Released: 14 May 2009
Requires Java: Java 8+
Protocol version: Unknown
Data version: Unknown
Version group: pre-classic
Numbering: Pre-classic alpha
Position: #3 of 920

Official downloads

Served by Mojang. Verify the checksum before running anything.

File	Size	SHA-1	Download
Client jar	59 KB	`6323bd14ed7f…`	piston-data.mojang.com ↗

Mojang's current version manifest does not list a server jar for this version. That is not proof that no historical jar was ever published.

The catalogue on rd-20090515

Projects that name rd-20090515 in their own release metadata. Follow any of these to the full filtered list.

Everything in pre-classic

6 versions in this group.

Filter list

Version	Type	Protocol	Released
inf-20100618	Alpha	Unknown	15 Jun 2010
rd-161348	Alpha	Unknown	16 May 2009
rd-160052	Alpha	Unknown	15 May 2009
rd-20090515	Alpha	Unknown	14 May 2009
rd-132328	Alpha	Unknown	13 May 2009
rd-132211	Alpha	Unknown	13 May 2009

Questions about Minecraft rd-20090515

What Java version does Minecraft rd-20090515 require?

Java 8 is the runtime Mojang's launcher bundles for rd-20090515, recorded in the metadata years after release. Versions from this era were built for the Java of their day, so Java 8 is the tested choice rather than a hard floor.

Go deeper

Full compatibility for rd-20090515Server software, loaders and the Java requirement in one place Java 8 downloadsVerified Temurin builds for Windows, macOS and Linux Everything in pre-classicOther alpha builds in this group How Minecraft version numbers workWhy 1.21 was followed by 26.1, and what happened to 1.22

Metadata from Mojang’s official version manifest. Protocol and data versions from the PrismarineJS minecraft-data project.

Is this information wrong or missing something? .