In 2074, Earth is divided between four megacorporations that rule with an iron fist. You are the commander (although not the leader) of Invisible Inc, a team of freelance spies who are paid by various corps to work against other corps. Or at least you were, until they located your headquarters. Now all that Invisible has left is a handful of corporate credits, an advanced hacking AI, two agents who escaped the raid, and a stealth jet. You have three days to rebuild the firm and counterattack before your AI dies of power loss. Its time for a hell of a crime spree.
In terms of gameplay mechanics Invisible is a lot like the Xcom reboot. You choose your missions on a map of the world, and then zoom in for grid based tactical missions. The feel of it is very different though. Once the level is generated, there are virtually no random mechanics. Combat works according to tightly defined and predictable rule, and as a whole a single guard is no match for an agent. But the more time a mission goes on and the more your agents are detected, the facility's alert level goes up, causing its defenses to rise. There is a slowly building tension each mission as you race to find the objective and the exit before the elite enforcers arrive to kick your ass. Alongside this, you direct the AI to hack any electronic object that your agents have located, making fast exploration even more vital. Both the AI and the agents can be heavily upgraded, but there's no guarantee you'll find the specific upgrades you're looking for.
Like FTL, each individual playthrough is short (6+ hours) but its designed to be played through multiple times. The game is super fair; the lower difficulty levels give you "rewinds" that allow you to replay the last two turns, and on top of that the game will tell you which spots are in enemy vision even if you can't see the source of the vision. So you're free to experiment with game mechanics without too much fear of losing a run. The higher difficulties strip away the game's forgiving features and add extra challenges, giving the game a true rougelite feel. You can also use custom campaigns to make it even harder.
The steam page is
here, and the website
here.