Laser Squad Nemesis

The award winning strategy game from the creators of the X-Com series. Play Marine, Machina, Spawn or Grey campaigns against a devious AI opponent, or play online against human opponents in competitions and tournaments with over 100 maps to choose from.
Laser Squad Nemesis is a squad level, futuristic war game with each player controlling between 10 and 30 individual units.

The unique game system is a hybrid of turn based and real time genres, allowing players fine control and the ability to review games with video style playback. Each turn consists of 10 seconds of real time action, for which players need to plan and issue orders to their troops. Command options include opportunity fire, rules of engagement, and various special unit abilities. There is an accurate 'line of sight' system, and the terrain is destructible, with interactive features such as lockable doors, force fields and power cells.
The Game features four races. The Laser Marines are the last hope of the human race. They are well armoured with powerful weapons, and once organised into small squads they are a flexible fighting force. The Machina are a sentient robotic race, originally built by humans to protect them against the Spawn menace. They possess heavily armoured units, Missile Tanks and hovering Hunters. The Spawn are a rapacious alien race with egg laying Queens, close attack Drones and Goo Spitters. The Greys are an ancient race that have been watching the human race since its earliest evolution. They have developed an advanced technology with teleporters, cloaking shields and mind control Psyker units.
You can join online tournaments and competitions, some of them with prizes. There is an active player community that helps run tournaments and creates maps for the game using the built in map editor. Players benefit from frequent updates and additions to the game.