Onmyoji Arena
Arena of Valor
Mobile Legends, until the PTW became unbearable.
Planet Commander (kinda boring at times, but similar to old War Robots in many ways)
War Dragons
In the past I played RR3 until it became too large and too heavy for my tablet to handle the load. Damn game needs a crap-ton of storage and RAM to function...my aging iPad 4 coudln't handle the strain, and I won't even try it on my $130 Lenovo tablet.
Also played Asphalt 8: Airborne for a while, but that game is a bit over-the-top for my taste. I liked RR3 for its realism, and A8 is beyond the wildest fantasies of any Evel-Knievel-wannabe.
Don't have a console or a game-capable PC.
Chess, either online or in person. Play a fair amount against my wife...she loses, but gives it a very dogged effort. Played for a while against a friend of mine, but he got tired of losing and now won't play.
Thus I have been forced to turn my attention online in search of competition.
Catan is awesome...like to get into the expansions of that game sometime. Also the MtG board game, which is fun but time-consuming.