Math is Fun Site
https://www.mathsisfun.com/area.html
Area Blocks
http://www.mathplayground.com/area_blocks.html
Party Designer
http://www.mathplayground.com/PartyDesigner/PartyDesigner.html
Geoboard
http://www.mathplayground.com/geoboard.html
Pattern Blocks
http://www.mathplayground.com/patternblocks.html
Area Shape Game
http://www.sheppardsoftware.com/mathgames/geometry/shapeshoot/AreaShapesShoot.swf
Shape Surveyor Geometry Game
https://www.funbrain.com/poly/
Perimeter Shape Game
http://www.sheppardsoftware.com/mathgames/geometry/shapeshoot/PerimeterShapesShoot.htm
Airline Builder
http://pbskids.org/cyberchase/math-games/airlines-builder
Khan Academy Perimeter/Area
https://www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter/basic-geo-perimeter/v/introduction-to-perimeter
A Bunch of Area and Perimeter Games
http://www.wartgames.com/themes/math/areaandperimeter.html