[PC] Free - Into the Breach @ Epic Games

Control powerful mechs from the future to defeat an alien threat.
Each attempt to save the world presents a new randomly generated
challenge in this turn-based strategy game.

The remnants of human civilization are threatened by gigantic creatures
breeding beneath the earth. You must control powerful mechs from
the future to hold off this alien threat. Each attempt to save the world
presents a new randomly generated challenge in this turn-based
strategy game from the makers of FTL.

Very Positive (8,681 reviews) Steam Link