Every month Humble Bundle lets users subscribe to something called Humble Monthly. February’s first game has been revealed.
Civilisation VI and its Australia civ + scenario and Vikings scenario packs can be bought for a mere $12 (compared to its usual $60 price tag). It should be noted that this does not include the IOS version of Civ VI.
Along with Civ VI you also receive 7 other games that will unlock over the next 26 days. You can also access the Humble Trove, a collection of DRM free games which consist of mostly indie games. More games are added each month. You can also purchase Humble Monthly in different ways. For example, if you pay for the full year you get $12 (a whole month) free and $20 to spend in store.