This is a good game. It has the same aspects from FTL (unforgiving, very strategic, etc.) but adds some extra unique elements too, like turn-based combat and stuff like that.
The game is simple and a bit like that movie pacific rim: Humanity is doomed due to invading, giant creatures known as Vek. You are a time-traveler that has one goal: To travel to different timelines in order to combat the Vek crisis. You control these giant machines that are designed to combat the Vek.
The replayability of this game is really good. Like FTL, there are many different units that have unique play styles and abilities.
If you want a game similar to FTL, play this one. In my opinion, this is game is basically FTL's lost brother.