I love Civilization 6, but sometimes I pine for the art style of its equally wonderful predecessor, Civilization 5. Civilization 6's cartoony vibe is all well and good, but when you've got an entire civilisation's worth of people resting on your every decision, a serious look is sometimes required.
Thankfully, there's a mod for that - and this one's from a developer at Firaxis.
The Environment Skin: Sid Meier's Civilization 5 mod for Civilization 6, by the game's art director Brian Busatti, changes the visuals of the game to better match the colours and tones of Civ 5.