The tabletop game seems to be doing well, only behind Warhammer 40k, afaik. Mechwarrior 5 has been met with mostly positive reviews, if you want the experience of actually piloting a mech. Mechwarrior Online is still around, pretty much unchanged since 2013, every mech has a free, non customizable version you can pilot.
For a tactical PC game very akin to the tabletop, BATTLETECH is the most recent, with fuckloads of DLC.