I've been playing Tribal Wars, which is also quite similar. The main difference, if you remember the mechanics of OGame, is that the only way to expand is to take over someone else's village, instead of colonizing random empty planets. Also, there's no "super unit" like the Death Star, it's more like 12 or so different unit types that you play rock paper scissors with.
The best part, though, is that it's mostly filled with juvenile idiots. This means that all you have to do to become godlike is join a somewhat competent tribe, which are admittedly rare. But I found a great one and we're quickly rising on world 17.