Khet and Quarto, are games of what type?
Quarto (board game) Quarto is a board game for two players invented by Swiss mathematician Blaise Müller in 1991. It is published and copyrighted by Gigamic.
Deck-building game A deck-building game is a card game that uses building a deck as the main focus of the gameplay. It is similar to collectible card games (CCGs) in that each player has their own deck. However, unlike CCGs, the cards are not sold in randomized packs, and the majority of the deck is built "during" the game, instead of before the game. Typically, the cards provide a type of game currency which allows players to buy more cards to add to their decks.