There's this fun one me and my boys learned from a hobo, it's called palace/shithead
You give 3-4 people nine cards. Three stay down, three get put over them face up, and three go in your hand. First person puts down a card next to the deck, and takes a card
Now the game is to put either a higher card, or a special. A 2 lets you go again, a 7 makes the next person have to draw 6 or lower (or a special), a 10 burns the pile and makes it unusable and lets you go again, and a J skips the next person (you can put two-three to go again). If you don't have any of these, you have to pick up the stack of played cards and the next person can start with any card. Your goal is to empty your hand! Every time you put a or three card down, you draw from the deck to make sure you have at least three cards in hand at all times. You can put multiples of numbers. When the deck is done, and you have no cards in your hand, you start using the cards face-up on the face-down cards. When you've used those, you draw the face-downs at random and can't take them back. When you play all the face-downs you win
It gets pretty fun, people seem to take a bit to really get what they're doing tho
