Genius Games Sort By Default Title - A to Z Title - Z to A Price - lowest first Price - highest first Time Added - latest first Popularity - most popular first Sales - best selling first $42.97 $42.97 View... Subatomic: An Atom Building Game (Standard Edition) $25.90 $25.90 View... First in Flight: Upgrade Pack $42.97 $42.97 View... Periodic: A Game of The Elements $8.51 $8.51 View... Ecosystem $53.72 $53.72 View... Genotype: A Mendelian Genetics Game $13.88 $13.88 View... Math Rush: Addition & Subtraction $13.88 $13.88 View... Math Rush: Fractions Decimals & Percents $13.88 $13.88 View... Math Rush: Multiplication & Exponents $25.90 $25.90 View... Outnumbered: Improbable Heroes $53.72 $53.72 View... Cellulose: A Plant Cell Biology Game $25.90 $25.90 View... Genotype: A Mendelian Genetics Game - Upgrade Pack $22.10 $22.10 View... Cellulose: A Plant Cell Biology Game - Upgrade Pack $11.35 $11.35 View... Ecosystem: Coral Reef $11.35 $11.35 View... Ecosystem: Savanna $53.72 $53.72 View... First in Flight $22.73 $22.73 View... Ion: A Compound Building Game (Second Edition)