Retool is a top-down tactical action puzzle game in a sci-fi setting. The main character Maria is a hacker engineer who is trying to get out of a destroyed orbital station. Events take place in the distant future, when humanity on the planet Sinai was destroyed by the Onyx race. After 43 years of war, the planet became uninhabitable, and offensive structures fell into disrepair. To repair them, Onyx began using captive people. You have to help Maria get out of captivity by hacking computers, using a vast arsenal of weapons and resorting to tricks.