Aztecalypse (Steam key).

http://store.steampowered.com/app/517010/
Action adventure with an apocalyptic touch.

In Aztecalypse you explore a newly discovered area with remnants of an ancient culture. As a leading scientist from the National Institute of Mystery you volunteer to investigate the disappearance of archeologists which had been examining the site. Dropped off near an abandoned camp, you have to discover what happened to the mercenary.
If you like First Person Action games set in mystic places, in an Open World with neat places to visit aside the story, you will definitely love this game!