[Rockwolf_]

I did not vote, but my cathegory is "European player, Other linux distro, Nvidia GeForce 6xxx or faster"

I use Gentoo Linux, and I have 512 MB of RAM.
After some playing I always get lag, but the game still has memory leaks. They eventually cause the whole system to lag, which does not say much about the game itself.
I think it's mainly around the cities (I only play in Alsius, both on RA and Horus).
Being there for a while makes my swap usage go off the charts.

Solution I use until it gets fixed one day:

Monitor RAM and swap usage on my external monitor (I play on a laptop) and restart the game when swap usage gets too high.

Other than that, the game runs fine as far as I can tell.