Games Like Ruby: Tunnel Vision

Ruby: Tunnel Vision is a short singleplayer experience with combat, exploration, and puzzle solving.

Ruby is set in a galaxy populated by elemental beings. You awaken in a prison cell on the Ruby planet as it is being invaded by an alien force known as the Dark Sect. As you escape the prison, you will be thrust into the streets of Scarlet City, and further beyond the planet made of Ruby. Your journey will lead you to unforeseen places as you try to piece together the events leading up to the invasion.

This game is built as a modification for the Source 2013 Singleplayer SDK using the Mapbase mod framework by Blixibon.