Etherbound (ghawst)
About
Etherbound is a relatively short and sort of experimental 3D first-person grappling hooks game with realistic chains physics and impulse-based collision damage.
In this game you take control of two grappling guns and a compressed-air jetpack system in order to navigate through unique environments and fulfil your sacred duty as a sentinel for the kingdom's border.
The game's central mechanic is very raw and physics based, thus it is harder to learn. It is somewhat meant to offer an almost simulation-like experience.
Cut version of a FULL WALKTHROUGH (spoilers):