Good game for 4 bucks

I was thinking of buying siege, since i gameshared it all this time, but since there's a discount for under 10 bucks i wanted to buy it,but i don't have a card that i can use,so i am forced to buy a giftcard,but where i am it's a 10 bucks minimum I'll be left with about 4 bucks, should i save or is there a good game for that price