Little Alchemy Cheat Sheet
(beta)
castle
castle
Combined from:
house house   +   knight knight
Combines with:
sand sand   +   castle castle   =   sand castle sand castle
human human   +   castle castle   =   king king
night night   +   castle castle   =   ghost ghost
gunpowder gunpowder   +   castle castle   =   cannon cannon
time time   +   castle castle   =   ruins ruins