Escape From Tethys

Escape from Tethys is difficult action adventure metroidvania game set on the remote planet of Tethys. You are a scientist responsible for developing new weapons tech, when things go awry.
Explore the mysterious, dark world of Tethys.
Confront and defeat the strongest creatures of the planet.
Find and unlock 20+ unique upgrades scattered across five different biomes.
Use new weapons and abilities to fight your way to the planet's surface....and escape!
Alone. Cold. Scared. Pursued. Only the strongest and smartest will make it out alive.