Monsters Ate My Condo is an action puzzle game where the player has to satisfy the hunger of four enormous monsters by feeding them with condos. Condos of different colours fall continuously from the sky, forming a tower. At each side of the tower is a monster of a certain colour and to feed them the player swipes a condo in their direction. The monsters can eat condos of any colour but eating condos of their own colour makes them happier. However, a monster that is served too many condos of the wrong colour gets mad and will attack the tower which can cause it to fall over. When this happens the game is over.
At the same time as feeding the monster the player has to create combos by matching three condos of the same colour. When a combo is made the three condos are transformed into a bronze condo. Bronze condos can in turn be matched to form silver condos which can be matched into gold condos. Condos of higher values are worth more points. When feeding a monster with these, the monster's power is activated. The power is different for each monster. For example: the red monster's power slows the time while the power of the blue monster causes the tower to straighten. If the colour of a combo is the same as one of the monster, it will be swapped out. Some special condos exist. Concrete condos can't be moved but can be removed by surrounding combos. Bomb condos blow up after a few seconds if a combo isn't created around them. Special condos can be created by making a combo containing three bad condos. When these are used in a combo high value shiny condos are formed.