1. A baseball simulation game allowing at least two active participants to control the play and comprising: a stadium formed by a member defining a playing surface with a baseball diamond described thereon, and fixed walls enclosing said member on all sides thereof, said playing surface being substantially free of any impediment to movement of a ball thereacross; a pair of entry ports in said walls each spaced to opposite sides of said diamond allowing restricted access to home plate; an opaque, continuous, open-ended elongate tube having a bore of a first diameter; means fixedly mounting said tube on an incline so as to provide access to an entry end outside and above the stadium with the opposite exit end spaced above and in front of home plate on a line between a pitcher's mound and home plate; at least one ball of a second diameter smaller than said first diameter of said tube; at least one bat of a diameter and length proportional to said ball; three offensive player pieces; and nine defensive player pieces each having a backwall and a pair of spaced forwardly directed integral side walls forming an open-sided rectangle, whereby one participant positions the defensive player pieces and delivers a ball to the tube and the other participant bats at the ball and moves the offensive player pieces to simulate play of an actual baseball game.