Block Engine

By a "block engine", I mean an engine used for a Block Based Game (Infiniminer, Minecraft, etc). As a hobby, I have been working on code for a first person shooter block based game, now called "Block Arena", sporadically ever since 2007. The code goes way back to the early days of these block games (some of it is the engine stuff I wrote for Infinifrag 2, a predecessor of Infiniminer intended to be a first person shooter with the block building mechanic that never saw the light of day). I have written up various ideas that are involved with these sorts of engines which will hopefully be of use to anyone on the great and noble quest to make a block based game.