I didn't love homeworld but I played it a lot and it was fun.. so I discovered Project Earth and it was supposed to be more streamlined and a little easier.
It was more streamlined but with a camera that was hard to learn, lousy voiceacting and when finally ingame a even worse tutorial. I had to restart the tutorial once just to be able to complete it.
The game - well it is streamlined to the point where you can only order your troops to move or attack. With only two modes, aggressive or defensive, it becomes a quick race to mine ore, produce crafts and wait for enough units to attack. No real tactics and hardly no strategy. I would not recommend anyone buying this game.