The Iconoclasts

The Iconoclasts is a Metroidvania platformer game by Joachim "Konjak" Sandberg, formerly a Retraux Cave Story-influenced project called Ivory Springs. It is about a society that relies on an energy source named "ivory" which is monopolized by a totalitarian government and linked with a religion centered around a goddess. All practice of mechanical engineering is illegal, but the heroine Robin does it anyways.

An alpha version is available here, a more recent trailer is here, and the first Ivory Springs version is available here, with a true release coming... sometime.

the following tropes: ===
 * Action Girl: Robin and Mina
 * Canon Immigrant: Mina the thief was originally the focus of another konjak project
 * Retraux: The Ivory Springs version was very much so, and the newer version still has elements like square flowers.
 * Small Girl, Big Gun: Robin wields a massive wrench and Mina wields a massive sword
 * Wrench Wench: The heroine, Robin, to the point of having a gigantic wrench that is used for most of the gameplay.