God of War (2005)

Kratos encounters two harem girls in a ship captain's chamber, we see their bare breasts in a cutscene and in-game, and sexual activity between the three of them is implied.

Kratos can engage in an (offscreen) menage-a-trois with the harem girls for points, we hear moaning and thrusting and the girls climaxing as Kratos receives points.

The Oracle of Athens wears a see-through top, her bare breasts are very visible.

Some creatures have visible breasts like Harpies and Gorgons.