* A set of games - This is a very straightforward and common way to refer to multiple games.
* A collection of games - This implies a more curated or organized set of games.
* A round of games - This is typically used for games that are played in a series or competition.
* A suite of games - This is often used for a collection of games that are related in some way, such as a series of video games.
Ultimately, the best collective noun to use depends on the specific context and the type of games you are referring to.