I always wondered if having a game set in very deep grass could be turned into a fun hide-and-seek type game. So, I threw together a prototype.

The player and the bots are Robo-Raptors (a great test for my rigid body animation exporter/importer from 3ds Max). You can kill the other raptors, but that's not the point ;)

Walking through the fenced-in area tramples the tall grass that fills the playing area. The AI follow any paths and will kill you if they sneek up behind you.

A fun idea on the backburner for now.