How Contributor Level works?

Six Sides of the World is considered Bundled Game (https://www.steamgifts.com/bundle-games/search?q=six+side) thus it only gives you 0.15% of it's value, so 1.2$. Also keep in mind that each next level requires more value than last one (https://www.steamgifts.com/discussion/XaCbA/list-of-all-cv-levels-and-their-corresponding-real-cv), so when for example at lvl 1 this game would give you 0.05 lvl, on your current lvl it gives you only 0.01 lvl.

also consider reading FAQ: https://www.steamgifts.com/about/faq this and most of your other questions are answered there.

http://www.sgtools.info/sent/Sigfriedm/newestfirst

Bundle games give only 15% of the regular value. Buy unbundled gifts for more value.