The invention provides a game apparatus having matched inner and outer vessels and a set of cards that can be used to play a game. Each vessel of the game apparatus is configured to hold a liquid such as water or beer, which can be dispensed into the vessel body through the open top. The outer vessel is larger than the inner vessel and configured to hold the inner vessel in a substantially upright position and rotatable in its hollow interior. The matched inner and outer vessels can be used to play a game in which two or more players take turn adding at least a drop of water to an inner vessel placed in a fluid-filled outer vessel until a player loses by causing the inner vessel to sink by adding more fluid than the inner vessel can hold. The invention also provides a plurality of karma cards that are content matched to a two-vessel game apparatus. A karma card can stipulate one or more actions to be taken when a player causes the inner cup to sink to a position identified by an outcome element on the outer cup. The invention methods for playing games using the matched two-vessel game apparatus, as well as score cards.