Is Minecraft: Xbox 360 Edition on Steam?

No. Minecraft: Xbox 360 Edition is not distributed on Steam, so there is no Steam Charts or SteamDB player count for it. Its live popularity is tracked here via Twitch viewership instead.

What platforms is Minecraft: Xbox 360 Edition on?

Minecraft: Xbox 360 Edition is available on Xbox 360.

When did Minecraft: Xbox 360 Edition release?

Minecraft: Xbox 360 Edition was first released on May 9, 2012.

Minecraft: Xbox 360 Edition

May 9, 2012SimulatorAdventureXbox 360

Minecraft: Xbox 360 Edition — frequently asked questions

Is Minecraft: Xbox 360 Edition on Steam?: No. Minecraft: Xbox 360 Edition is not distributed on Steam, so there is no Steam Charts or SteamDB player count for it. Its live popularity is tracked here via Twitch viewership instead.
What platforms is Minecraft: Xbox 360 Edition on?: Minecraft: Xbox 360 Edition is available on Xbox 360.
When did Minecraft: Xbox 360 Edition release?: Minecraft: Xbox 360 Edition was first released on May 9, 2012.

About Minecraft: Xbox 360 Edition

Imagine it, build it! Minecraft: Xbox 360 Edition lets you create worlds from the comfort of your sofa. Play alone or play with your friends. Explore, build and conquer! At night monsters come out, so make sure to build a shelter before that happens. After that, your world is your imagination. Turn your hours into minutes with Minecraft!

Summary via IGDB.

Minecraft: Xbox 360 Edition on Wikipedia

From 2012 to 2018, the sandbox video game Minecraft was ported by 4J Studios to multiple seventh and eighth generation video game consoles. These ports have become retroactively known as "Legacy Console Editions". These platforms include, in order of release: Xbox 360, PlayStation 3, PlayStation 4, Xbox One, PlayStation Vita, Wii U, and Nintendo Switch.

Source: Wikipedia (text under CC BY-SA 4.0).