Ace of Spades is a very unique game where you can build in the battlefield while shooting your enemy. Think about Team Fortress meets Minecraft. The main goal of the game is capture the intel, the first team to capture the required number of Intels wins. Some of you might know that ace of spades was released in steam. Feel free to play it it only cost you 10$. But for who of those who want to play the "free" version of the game head to

http://buildandshoot.com

Build and Shoot is a player-run community. Where we the community work together and work on the game that we once loved and played. We're still working on the game but you can still play it. For FREE. If you would like to help this community grow feel free to.

Specs? Your grand mothers old rig can run this game(the prototype version that is...). Game modes? Yes, there's tons of them. There's zombies, tdm, FFA, etc there's even a boss battle mode where a kraken randomly appears. Yeah. Seriously. You could also make your own game mode too.  

I bought it on steam a while back. It's a great game :p