Minecraft has elementary and somewhat fictional physics. Most blocks can simply float in the air without falling; the particle effects when a block is mined are 2D, and the water is completely static ...
Minecraft's dated graphics and simple mechanics make it a relatively easy game to run. However, its vast community has created several mods with various features; some can be quite heavy on a device.
Hardware Google claims it has made a 'major breakthrough' in quantum computing with an algorithm 13,000X faster than a traditional equivalent, although not everyone is convinced Survival & Crafting ...