Pitting 11,000 virtual vicious penguins against 4,000 murderous virtual Santas

Brilliant Games Studios wanted to show off its new crowd rendering system, so they created 15,000 virtual characters -- 11,000 penguins and 4,000 Santas -- and loosed them on each other in an "epic battle" -- "Units now navigate complex terrain, Bodies now pile up, movement and avoidance improved and smoothed." (via JWZ)