|fən|

noun

enjoyment, amusement, or lighthearted pleasure : the children were having fun in the play area | anyone who turns up can join in the fun.

• a source of this : people-watching is great fun.
• playful behavior or good humor : she’s full of fun.
• behavior or an activity that is intended purely for amusement and should not be interpreted as having serious or malicious purposes : it was nothing serious; they just enjoyed having some harmless fun.
• [ attrib. ] (of a place or event) providing entertainment or leisure activities for children : a 33-acre movie-themed fun park.

Therefore games are lighthearted amusements, neither serious nor malicious, and most likely intended as leisure activities for children.

Enjoy your fun.