Dice games, quite obviously, are games that use dice as the primary game component. Usually to randomize outcome.
Some use numbers, others symbols… others use dice as the way of indicating action.
Games like Farkle and Yahtzee use numbers to press your luck.
King of Tokyo incorporates dice as a central device… but also has other components.
Many RPGs (Roll Playing Games) use dice to determine outcomes. Statistics and percentiles are rolled to see if you live or die…
Personally, I love dice games, and always have one or more in my purse, to play wherever I may be.