Sleipnir wrote:
Upgrade to: Cost:
250 - 100k
500 - 200k
1000 - 400k
2000 - 800k
4000 - 1.6M
8000 - 3.2M
and so on...
.
I think this is an excellent idea, however the population caps sleipnir suggested here ^ I think is probably not that good an idea, I think they should work somewhere in between how the current unit production works and this idea here, for example
100- free!
150 - 10k
250 - 25k
350 - 50k
500- 80k
they arent exact figures I am just trying to get across what sort of slope you want on your upgrades.
Also you could have a feature "how many planets do you want to capture" and this could decide what sort of attack you have on the individual planets, elect too little and it isnt worth anything, too many and you wont capture any or many. The defence would have to be multiplied up somewhat but that's no biggie. possibly upgrades for this? dependign on how many planets you have what level you can reach.