I’d hate to use the word “clone” here, but “Planetary Annihilation” certainly takes a lot of ques from the “Supreme Commander” series. That’s not necessarily a bad thing…I’ve put hundreds of hours into “Supreme Commander 2” alone. For one, it’s an RTS that gives both sides a mission critical and destructable commander unit. Secondly, there are two resources…metal and energy (“Supreme Commander” had mass and energy). Furthering that fact, metal can only be harvested on particular spaces on the map, similar to how mass was collected in “Supreme Commander”. The structure types are similar, with the ideas revolving around regular and advanced constructor units being nearly identical…bottom line, if you’ve played “Supreme Commander” before, you’ll be able to jump into this without a problem. To be fair, “Planetary Annihilation” does take things to a whole new level: space and the ability to colonize other planets.