Whenever I play a game with someone new, we quickly realize we have to clarify the rules we’re using beforehand, since so many people have their own varieties. What are some non-standard game rules that you/your family/friends follow?
I’ll start. My family has a rule where we’re not allowed to win on a Wild card. It adds a bit of challenge, and keeps someone from being unbeatable if they play by hoarding wild cards.


We play +2s, Reverse, and +4 wilds can be stacked. A +4 being played needs a colour declaration, and a +2/reverse of that colour can continue the stack.
Usually this means +4 will kill the pile and the unfortunate sod is picking up 6, or 8, or whatever… But sometimes, they magically have the correct Reverse, or +2 and escape with their life.
An alternative side rule we play is chains. I play a green 3, I can immediately play a green 4, then a red 4… Until I can no longer play matching number, or consecutive colour, or effect card.
Mostly because we used to play a card game we called Blackjack, that is basically Uno, but with chaining. Aces were wild, 2s were pick up 2, 8s were miss a go, Jacks of spades/clubs were pick up 7, Jacks of hearts/diamonds did something else.