Lamecraft is described as 'Minecraft clone for Playstation Portable (PSP)'. There are more than 50 alternatives to Lamecraft for a variety of platforms, including Windows, Mac, Android, Linux and Steam. The best alternative is Minecraft. It's not free, so if you're looking for a free alternative, you could try Minetest or Roblox. Other great apps like Lamecraft are Terraria (Paid), Starbound (Paid), Creativerse (Freemium) and LEGO Worlds (Paid).
Minecraft is a sandbox game that revolves around using building blocks to create anything you want. At night, monsters come out; make sure to build a shelter before that happens. The game also has multiplayer capabilities.
Roblox allows you to create games, build whatever you want with lego-like bricks, play other games made by users of the community, and even participate in the economy by trading, selling, buying, and collecting items.
Starbound is an indie game being produced by the UK-based independent game studio Chucklefish Ltd. Starbound takes place in a two-dimensional, procedurally generated universe which the player will explore in order to obtain new weapons, armor, and miscellaneous items.
Terasology (started under the name Blockmania) is an open source project started by Benjamin “begla” Glatzel to research procedural terrain generation and efficient rendering techniques in Java using the LWJGL.