Some of our favorite games:   

• Prime Climb
• Chess
• Karma  
• Stratego 
• Dr. Eureka  
• Crazy Letters
• Quoridor   
• Blokus 
• DestiNation USA
• Qwirkle
•  Mancala 
• GDP (guess, digits, places ... can be played with pencil/paper) 
• A-Ha! Brainteaser Kit
• Spot It!
• SET   (online version at: https://www.setgame.com/set/puzzle )