Matt Thrower of BoardgameNews? describes it as an "efficiency engine" game - by which he means it's the same sort of game as Caylus and Puerto Rico. You get 28 actions throughout the course of the game, in which to take your empty yard and turn it into a diverse farm, preferably containing fields containing grain and vegetables, pastures and stables containing sheep, pigs and cows, and a house as large and upgraded as possible. There's a basic "family" version of the game, and an "advanced" version where each game is different because each player receives a random hand of 7 Occupations and 7 Minor Improvements, which the player may choose to bring into play through the course of the game, providing special powers but costing resources and/or one of your precious actions.
Various comments have been made arising from these games:
Vitenka initially proposed using the 'family game' option (doing away with the starting cards), but then discovered the existence of the 'alien encounters' deck which, while "horribly destabilising" (Angoel), sounds silly and fun.
AlexChurchill observed that the I deck has a few cards that would be fiddly to play online, but that the K deck, while tricky to play well ("ISTR the prereqs on many K Minor Imps are harder to meet"), doesn't raise practical problems for wikiplaying. The lack of complaints from the third game, which used an E/K mix, seems to bear this out.