RBounce
An animated board game for Windows
...The goal is to enclose and fill empty areas by building walls around them. Wall ends grow till they reach the game boundary, or another wall, or meet a ball. If a ball strikes an active end, the wall stops growing at that end; if a ball strikes the side of an actively growing wall, both ends stop and the player loses a "life". Each round begins with as many lives as balls: 2 for Round 1, 3 for Round 2, and so on up to Round 15 (which no living mortal has yet reached). The goal for each round is to enclose and fill 75% of the board. ...