AfCraft is a project mainly written in C#, it's free.
asiekierka's mod of fragmer's server, fCraft. the source will probably be unstable, in case you want a stable version, you can download the old binaries
afCraft, asie's buggy mod of fCraft!
WireWorld (requires SwitchLogic permission): /logic - turn WireWorld mode on/off /logic3d - turn 3D wireworld mod on/off
Physics (requires ControlPhysics permission): /physics - turn physics on/off /phyadd [block name/ID] - make a block use finite physics /phyrem [block name/ID] - make a block NOT use finite physics /phychk [block name/ID] - check if a block uses finite physics /wamode (0/1/2) - change water mode: 0 - none 1 - infinite - water/lava is infinite 2 - finite - water/lava is finite and slippy (asiekierka's algorithm) /rwater - place real (moving) water /rlava - place real (moving) lava
/phymode [block name/ID] [mode] - change a block's mode:
The mode is a hard thing to edit, becuase it's bitwise.
if you know bits, follow.
the mode: 0abcccde
a - fall into lava: 0 - yes, 1 - no b - fall into water: 0 - yes, 1 - no ccc - slippiness chance: 000 - 1/8, 111 - 8/8 d - slippiness (like water, which does 1/96 chance): 0 - off, 1 - on e - finite mode on/off (changed by phyadd/phyrem, phymode does not touch it)
ItemEntities (requires PlaceItemEntity permission): /ieadd [itementity's name] (params...) - Places ItemEntities of a type/stops placing them, params are optional depending on the ItemEntity. /ierem - Removes/stops removing ItemEntities by placing/removing blocks where they are.
ItemEntities:
WaterGen - generates water at the top of self LavaGen - generates lava at the top of self BlockGen [block ID/name] - generates a block at the top of self