Free Minecraft in Google play

I have been seeing a LOT copy's of Minecraft the last 3 months.

Examples:

Master Craft - New Crafting game - https://play.google.com/store/apps/details?id=com.krafts.building

Mastercraft - Pocket Edition - https://play.google.com/store/apps/details?id=com.knezevic.mastercraft

Worldkrafts - https://play.google.com/store/apps/details?id=com.viouk.free.gamecrft.big.opp

Mini Block Craft - https://play.google.com/store/apps/details?id=mini.block.craft.free.mc

Turbo Micro Craft - https://play.google.com/store/apps/details?id=turbo.micro.craft.exploration.crafting.bekel