First up is the confusingly-named 6 nimmt! card game, which is one of those games where it's possibly to spectacularly lose a round and go all the way from first to last place if you're not careful or the cards hate you. The rules are simple though a little confusing: the cards are numbered 1-104 and are worth various amounts of penalty points. Everyone gets dealt a hand of cards and then 4 more are placed faceup in the middle (forming 4 stacks). Then everyone secretly selects a card from their hand, simultaneously reveals their chosen card, and then in ascending order places their card at the end of the stack with the highest card less than theirs (i.e. price-is-right rules). If someone places the sixth card on a stack, then they pick up the other five cards and place them in a score pile. If someone can't place their card (e.g. because they had the misfortune to be dealt "1"), then they select any stack they like, pick up the cards, and place theirs as a new stack. Repeat until everyone has run out of cards, then add up the penalty points in the score piles. Then shuffle and deal a new round. First player to exceed 66 total penalty points ends the game and the lowest score wins.
It becomes easier to understand after playing a couple of rounds, honest!
Afterwards we played what Kyle described as a "toddler simulation game" - Human: Fall Flat, which is a physics simulation game a little in the style of World of Goo except with humans instead of goo. The particular mechanic here is that your character can grab onto just about anything, and by doing so move boxes, climb walls, move platforms (by grabbing the wall and "walking" the platform)... and you have to solve various puzzles while a voiceover snarks at you. Or start co-op mode and then play tug-of-war with another player.