Minetest will allow cross-play between 5 platforms

Minetest
Crossplay platforms
Release Date: Nov 2, 2010
Official Website: Link
Crossplay platforms:
Minetest will support cross-play across multiple platforms. It will be possible to play together with your friends on Windows PC, Android, iOS, Linux and Mac. Please check out all the details on the game's official website!
Summary:
Minetest is a near-infinite-world block sandbox game and a game engine, inspired by InfiniMiner, Minecraft, and the like.

Genres and Themes: Adventure Open world
Screenshots:
Supported game modes:
  • Single player
  • Multiplayer
  • Co-operative
Supported player perspectives:
  • Third person