A living proof of why i tend to avoid most of the multiplayer-only games which are not F2P, eventually they all become abandoned and you can't have any use of them later.
Starvoid is a quite decent real time strategy game which has three different gameplay modes: Battle, Sabotage and Team Deathmatch, each of them requiring different tactics and strategy. In Battle mode the goal is to capture the extraction points, in Sabotage mode is to corrupt the enemy team's facilities, and in Team Deathmatch mode - to eliminate enemy commanders, plus you also get quite a few challenges which can earn you some rewards.
Still, none of this has any sense as long as you don't have with whom to play. Nobody is playing it, 0 players online most of the time. This game is a VOID indeed. Considering that once you purchase the game you get a extra copy for a friend - you could try playing it in two, though it becomes boring after a few matches anyway. Also, there is no way you can set up your own server, you just need to look for an automatic one and pray to God to find one, since they are down most of the time.