Well, finished the campaign. At 2:30 AM. Steam tells me I played 6 hours without stopping. Sigh...
About the differences between Creeper world and this... well. Creep's gone, replaced by "particules". The main concepts don't change. There still is "special creep" buildings that builds their stuff, power their weapons, generates particules. To be destroyed, you need a special turret, much like in creeper world. Particules are destroyed by being shot at and are constantly generated.
The main differences are:
- the particules behave... well more or less like the ships in AI War do. They check constantly your forces and try to kill your ship, conquer more territories, defend its territory. Imagine that in Creeper world the creep got out of its valley ? That's about the feeling it has.
- Turrets are gone and are replaced by a series of ships. There is a dozen base designs, but you can create your own. You can only build the ships that are in your fleet, unless you capture some blueprints on the battlefields which add another unit to your fleet. Interesting thing, ships are tied to the map, so there is a "default" fleet with each map, but you can, if you can substitute your fleet if you want more or less of a challenge.
- most map now have "neutral" particules which you can use as enemy particules do, but you're the one "controlling" them.
There is with the base game a 16 mission campaign, which ties with the story from the other creeper worlds, a dozen "hard" missions specially selected by the dev, a map editor, and a mecanism to share / play maps done by other users. There's about 90 maps I think there for now. Last, but not least, a random map creator.
It's very strange, because those ain't "major" modifications so the game feels the same but ain't. There should be a lot of videos by now if you want a look. I like it.