Contact is a grid slot machine played on a 5x7 grid. Symbols drop down in the grid to form winning combinations. Wins are achieved by getting 5 or more matching symbols in a connected cluster where they touch each other horizontally and/or vertically. Each symbol has a value and the total win of the round is calculated by multiplying the number of alike winning symbols by the value of that symbol.
During a game round, winning clusters will not be removed. Instead, non-winning symbols will be removed, then winning symbols will cascade down and get locked in place, then new symbols will cascade in to fill the grid. These new symbols can connect to the existing winning symbols to increase the size of the clusters or create entirely new clusters. The game continues to cascade until no new winning combinations are created.
During the main game, filling the entire 2nd, 4th, or 6th row with winning symbols awards a total win multiplier of x2, x3, or x4 respectively. Only the highest multiplier reached is awarded. Reach all the way up to the top row with winning symbols to trigger the Bonus Round. Fill the entire grid with winning symbols to trigger the Super Bonus Round. The Bonus Round and Super Bonus Round can only be triggered during the main game.
Players start each Bonus Round with 3 free spins and each Super Bonus Round with 6 free spins. Winning clusters remain on the grid throughout all spins in the Bonus Round and Super Bonus Round, meaning that the win can increase throughout the entire Bonus or Super Bonus Round.
During the Bonus Round, filling rows 2, 3, 5 or 6 with winning symbols initially awards a total win multiplier of x2, x3, x4 or x5 respectively. Filling rows 1, 4 or 7 with winning clusters awards one of three Special Features, which will be applied at the end of that individual free spin: Block Destroyer – this destroys one of the multiplier blocks, allowing the other multiplier blocks to cascade down and an additional multiplier block to fall in at the top, possibly increasing the awarded multiplier; Symbol Upgrade – this upgrades one of the winning clusters on the grid to the next best symbol; Extra Free Spins – this awards 1 additional Free Spin.
During the Super Bonus Round, any row filled with winning clusters awards a total win multiplier and a Special Feature. The Special Features in the Super Bonus Round are more powerful than in the Bonus Round: Block Destroyer – this destroys 3 of the multiplier blocks, allowing the other multiplier blocks to cascade down and additional multiplier blocks to fall in at the top, possibly increasing the awarded multiplier; Symbol Upgrade – this upgrades all of the winning clusters on the grid to the next best symbol; Extra Free Spins – this awards 3 additional Free Spins. With the Block Destroyer in the Super Bonus Round it is possible to earn up to 30x total win multiplier. The Total win is calculated at the end of the Bonus Round or Super Bonus Round. If the grid is filled with winning symbols before all the free spins have been used, the player is awarded 25x Total Bet for every remaining Free Spin. It is possible to win up to 1517.5x Total Bet.