I recently promised to put all my ideas together in another release of Onslaught. Last night I did a bit more, and I've made some significant changes.
The most obvious is the total replacement of asteroids and crystals with harvestable debris and consumable wrecks. There are lots of other changes too, like a general reduction in available resources, increased research times and altered/upgraded effects. I think I've pushed the Cataclysm game about as far as it can go now. Anyway, there's a lot of tidying up to do but it's pretty much ready.
This is just for fun, since virtually no one plays Cataclysm/Onslaught anymore. I don't really expect much comment, but if anyone has a (reasonable) suggestion now is the time to make it.