Asklemmy

It's very good. The sequel, not so much from what I hear.

The strength of supreme commander comes from the ability to chain up multiple commands across units, buildings and waypoints. So you can have 20 factories, whose rally point is a ferry waypoint where 10 or so dropships fly your mass produced units across the map to a secret, stealth cloaked bridgehead you've built on the enemy's continent. Or you can have bombers and fighters build and then automatically join a patrol. You can build repair bases near these routes so that they can quickly reload or repair intelligently without your intervention. You can tell factories to just constantly churn out units, and you can copy and paste whole arrays of buildings to allow for incredibly fast base building. Adjacent buildings also give each other boosts and efficiencies.

It has some really great strategic and tactical weapons and base defenses. The super weapons are really fun and due to the games scale, never op. The late game nuclear warfare is a hoot, with your main objective being too try and make a hole in your enemies nuclear interceptor shield so you can land a nuke.

Your supreme commander and subcommander builder units can be upgraded with all kinds of add-ons, including teleporters that you can use to teleport them into an enemy base and then nuclear self-destruct.

There's land, sea, submarine and air combat with aircraft carriers that can carry up to a hundred aircraft. There's also submarine aircraft carriers, land aircraft carriers and flying aircraft carriers.

The game is genuinely incredible.