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 $45.08 $45.08 View... Subatomic: An Atom Building Game (Standard Edition) $23.19 $23.19 View... Cellulose: A Plant Cell Biology Game - Upgrade Pack $45.08 $45.08 View... Periodic: A Game of The Elements $27.17 $27.17 View... Genotype: A Mendelian Genetics Game - Upgrade Pack $27.17 $27.17 View... First in Flight: Upgrade Pack $11.91 $11.91 View... Ecosystem $56.36 $56.36 View... Genotype: A Mendelian Genetics Game $14.56 $14.56 View... Math Rush: Addition & Subtraction $14.56 $14.56 View... Math Rush: Fractions Decimals & Percents $14.56 $14.56 View... Math Rush: Multiplication & Exponents $27.17 $27.17 View... Outnumbered: Improbable Heroes $11.91 $11.91 View... Ecosystem: Coral Reef $56.36 $56.36 View... Cellulose: A Plant Cell Biology Game $56.36 $56.36 View... First in Flight $23.85 $23.85 View... Ion: A Compound Building Game (Second Edition) $11.91 $11.91 View... Ecosystem: Savanna