Today is the annual Labour Day holiday in the United States and Grande Vegas Casino is marking the occasion by offering players the chance to bag a share of $5,000 in prizes via its Labor Day Slots Tournament.Running until September 30, players will take home a prize by collecting one of the highest scores on the five-reel and 20-payline Cleopatra’s Gold slot from developer RealTime Gaming with Grande Vegas Casino revealing that add-ons will be available.Cleopatra’s Gold features a representation of the last Egyptian pharaoh serving as the wild symbol while gaining three pyramid scatter icons will trigger a free spins feature with a treble multiplier. In this bonus game, players choose blocks from a pyramid to reveal bonus prizes.