Sid Meier's Civilization VI: Maya and Gran Columbia
Developers: Firaxis Games, Aspyr (Mac), Aspyr (Linux)
At this point, it's difficult to say if The New Frontier pass is worth the money. The first pack, Maya & Gran Colombia, isn't worth the $40 asking price yet, but new content will arrive every other month, and the full New Frontier experience won't be complete until March 2021. As it stands, unless you genuinely love the two new civilizations or think the Apocalypse mode is going to tide you over for a few months, it would be best to wait until at least a couple of more game packs are out.
Civilization VI - First Look: Gran Colombia | Civilization VI - New Frontier Pass
Civilization VI - First Look: Maya | Civilization VI - New Frontier Pass