need help finding two 7.50 games

[Kimono]

my friend has $15 in his steam wallet and we both want to get a game for 7.50 and play it together.

it has to be;

on steam
less than $7.51
co-op
fun

[Ad Bot]

[Blooker]

Cubemen

[Maxwell23461]

terraria

[Kimono]

i have successfully convinced myself that there are no good games that are 7.5 dollars or less