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 $28.99 $28.99 View... Genotype: A Mendelian Genetics Game - Upgrade Pack $57.32 $57.32 View... Subatomic: An Atom Building Game (Standard Edition) $24.75 $24.75 View... Cellulose: A Plant Cell Biology Game - Upgrade Pack $28.99 $28.99 View... First in Flight: Upgrade Pack $57.32 $57.32 View... Periodic: A Game of The Elements $12.71 $12.71 View... Ecosystem $19.08 $19.08 View... Math Rush: Addition & Subtraction $19.08 $19.08 View... Math Rush: Fractions Decimals & Percents $19.08 $19.08 View... Math Rush: Multiplication & Exponents $31.83 $31.83 View... Ion: A Compound Building Game (Second Edition) $69.35 $69.35 View... Genotype: A Mendelian Genetics Game $12.71 $12.71 View... Ecosystem: Coral Reef $35.37 $35.37 View... Outnumbered: Improbable Heroes $69.35 $69.35 View... Cellulose: A Plant Cell Biology Game $69.35 $69.35 View... First in Flight $12.71 $12.71 View... Ecosystem: Savanna