Like Syndicate crossed with Mechwarrior, an art style reminiscent of Tiberian Sun and a fantastic soundtrack. There's a decent length campaign with difficulty determined by a choice of 4 load-outs for each mission but the real meat of the game is in the freelance mode where you can unlock a huge range of mechs, tanks and antigravs along with a similarly large selection of weapons and use them fight your way through a string of maps with fully destructible everything.
Works perfectly on Windows 10, though only has support for 4:3 resolutions as expected. Also includes the Building Architect tool and Scenario Editor (which you need MS Access or similar to use). As for the actual game, it's a better looking and improved SimCity 2000 with less of the complexity that SimCity 4 added, for better or worse. Most importantly, includes all the fantastic music!