GAME OF THE YEAR, GameZebo 2014. PocketGamer GOLD AWARD. Touch Arcade: Rated 5 / 5. ArcadeLife: Rated 9. 5 / 10. Traps n' Gemstones is an adventurous platform game, among gamers typically known as the "Metroidvania" genre, from Donut Games, the developer behind chart-toppers Traffic Rush, Sunday Lawn, the "Rat On A" series and many others. The plot.