3HOUSE
3HOUSE was a small booklet published by Looney Labs in 2007, containing rules for 3 games playable with a 3HOUSE set: Black ICE, Martian Chess and Binary Homeworlds.
The term 3HOUSE refers to three Treehouse sets, meaning 45 pyramids in 5 different colors. It may consist of rainbow colors, as shown above, or of Xeno colors.