No game is Epic.
ep·ic
/ˈɛpɪk/ Show Spelled[ep-ik] Show IPA
–adjective Also, ep·i·cal.
1.
noting or pertaining to a long poetic composition, usually centered upon a hero, in which a series of great achievements or events is narrated in elevated style: Homer's Iliad is an epic poem.
2.
resembling or suggesting such poetry: an epic novel on the founding of the country.
3.
heroic; majestic; impressively great: the epic events of the war.
4.
of unusually great size or extent: a crime wave of epic proportions.
It's really not a stretch to call a video game epic.