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1. Quake Live Arena 
The Quake Live massively multiplayer online first person shooter is a fan favorite. Challenge your friends and foes in QUAKE LIVE, the 100% free-to-play arena shooter created and supported by id Software. Beginner to Pro - Easily play against others at YOUR skill level. Over 40 arenas and 5 game modes for endless competition. Practice and compete offline against automated bot players.
2. Operation 7 is a fast paced first person shooter (FPS) publisher by Netgame. Battle it out with up to 24 players per game in three different modes: Death Match, Survival and Head Hunting. in Operation 7, 5 types of different items including functional items can be equipped on the character. also, there are 3 different designs for the same model or parts so each player can customize their character appearance teh way they want.
3. Alien Arena Do you like fast paced deathmatch? How about rich, colorful, arcadelike atmospheres? How about...retro Sci Fi? Then you're going to love what Alien Arena has in store for you! This game combines some of the very best aspects of such games as Quake III and Unreal Tournament and wraps them up with a retro alien theme, while adding tons of original ideas to make the game quite unique.
4. America's Army is one of the ten most popular PC action games played online. It provides players with the most authentic military experience available, from exploring the development of Soldiers in individual and collective training to their deployment in simulated missions in the War on Terror. Nobody knows military simulations like the world's premier land force, the United States Army. So, when the Army began making the America's Army game to provide civilians with insights on Soldiering from the barracks to the battlefields, it sent its talented development team to experience Army training just as a new recruit would. The developers crawled through obstacle courses, fired weapons, observed paratrooper instruction, and participated in a variety of training exercises with elite combat units, all so that you could virtually experience Soldiering in the most realistic way possible.
5. Battlefield Heroes is a brand new Play 4 Free game from the people that brought you the multi-million selling Battlefield 1942 and Battlefield 2.It's a fun cartoon-style shooter which caters to players of all skill levels — easy to pick up and play, but with deep character development.
6. Control Monger In an age of death and destruction. Where love, life and happiness have no meaning. There is a world where mankind has been pushed to its limits and the only thing that matters is total control. The quest for riches has lift the universe a shatered and battle torn arena of combat. Sociaty has been deminished to nothing more then combat units blasting across the plant sides distorying everything that stands in there path.
7. Cube Free single and multi player 1st person shooter game with some satisfying fast oldskool gameplay. A large variety of gameplay modes from classic SP to fast 1 on 1 MP and objective based teamplay, with a great variety of original maps to play on.
8. Combat Arms Prepare to drop into an ever-changing theater of conflict, where you are in control of youer gameplay - from your fully customizable character, to your lethal arsenal of weapons, to the scenarios you want to experience. Experience fierce battles online with up to 15 of your friends and enemies in dense jungles, frozen tundras, industrial wastelands, and more!
9. S4 League is a fun fast paced sci-fi MMO shooter. With fast paced gameplay, catchy techno music and balanced gameplay it’s a must play for any MMO fan. S4 League has two different game modes; Deatchmatch and Touch Down. Deathmatch is a team vs team type game where whichever side gets the most combined kills at the end of the round wins.
10. Cross Fire is a 3D first person shooter that looks and plays a lot like the original Counter Strike. Cross Fire has 4 game modes, including a unique ‘Ghost Mode’ where one team is nearly invisible but armed only with knives. Gain ranks, earn GP, buy new guns and keep track of your kill/death and win/loss ratios in this fast paced tactical shooter.
