Game 1 A simple game is "Pairs" or "Pelmanism" 2 or more players
Take two of each of 10-20 different tillions, mix them and turn them face down (scattered randomly or in a grid pattern). Each player takes it in turn to turn two tillions face up so that everyone can see them, if they do not match he turns them back face down. If the two tillions match, the player takes them and has another turn. As each pair of tillions is won it can be added to the player’s pattern. The winner of the game is the player with the most pairs/the largest pattern - and the patterns that emerge will be unpredictable and fascinating.
Game 2 In a variation on "Pairs", the players take it in turns to turn over one tillion at a time, but leave them face up, and when a matching pair is spotted the first player who calls "Tillions" and immediately identifies the pair by touching both matching Tillions, can claim it for their pattern.