Now, let's take a look at the game you are looking for; Geomtery Dash(first created in 2013(that's all I know))! Here's a bit of a history...Geometry Dash History (-by "Subscribe Partition New Channel"(in Youtube))
Geometry Dash is a very Fun, Geometerically & Musically Educational, and Creative game(at least to me). Its geometric component includes vectors, gravity(including gravity-shift), constant velocity toward the "+x component" movement(it's the horizontal side of the gravity), jump, wave, ufo forces which can controlled with manual controlles, etc. There are various kinds of creepy, fun, synthesic(?) music included in the game, and also, you can create your own level and share & play other's level.
If you want to try this game(that you might probably have wanted), try it! It's actually worth buying it in STEAM for like, $5? But if you want to download these game freely on your computers, press this Big Blue Download Button! (...when I get a knowledge about how to create a download-featured link in HTML. Very Sorry;;;)
UPDATE since 2018: Figured out how to do that. LOL
This is the second version of the Geometry Dash website!
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