Featured Free Online alien invasion Games | |||||||
 Zip Zap |  Earth Defender |  alien invasion |  Empire Island |  Last Command | |||
 Galaxy Guardian |  Sky Hounds |  the Utans | |||||
Top Rated Online alien invasion Games | |||||||
Galaxy Guardian | Earth Defender | Empire Island | alien invasion | Last Command | the Utans | Zip Zap | Sky Hounds |
Newest Free alien invasion Games | |||||||
 Shadow Alien Invasion | Shadow Alien Invasion |  Vampire Jetpack |  Orbit Blaster |  Ufoh |  Spudz Alien Invasion |  Alien Invasion |  Alien Invasion |
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| Online alien invasion Games | ||||
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 Alien Invasion 2 Game  Plays: 18009 Category: Strategy Defend your base against the onslaught of alien invaders. Do whatever it takes to survive! | Empire Island Game Plays: 14310 Category: Action Build and defend your Empire Island through the ages. Build up your population to raise taxes. Choose 30 different types of construction unit including several types of weapon, ranging from mud-ball towers and cannons through to advanced futuristic weapons such as lasers and missiles. Place defences including mines, explosive balloons and tesla coils. Build banks and markets to increase revenue. Call upon powerful Acts of God, such as Lightning, Tsunamis and Firestorms. Fend off ever more advanced enemies, starting from simple wooden boats, right up to alien invaders. Upgrade almost everything! One of the most advanced physics-based strategy games available. This is a thinking-mans strategy game, not to be confused with a Tower Defence game. If you find you are not earning enough money - you probably need to try a different strategy. Walkthough here: http://armorgames.com/guide/empire-island-game-guide Video Walkthrough: http://www.thepodge.co.uk/readarticle8.html | |||
| Zip Zap Game Plays: 12770 Category: Shooting A sideways scrolling shoot-em-up in the style of the ancient arcade classic "Defender". Defeat the alien invasion by destroying all 10 waves of enemy spacecraft and rescue as many refugees as possible. | Last Command Game Plays: 10008 Category: Action Alien invasion has begun! You control the last platoon of soldiers that have survived the onslaught! Protect your bases! Once all the bases are destroyed the aliens will control everything! 5 stages, 10 waves each stage, and a big bad alien boss at the end of each stage! | |||
| alien invasion Game Plays: 9845 Category: Action defend your base from an endless onslaught of alien invaders. you can build buildings, units, and call for support! |  Star command GamePlays: 7061 Category: Action Defeat the huge alien invasion approaching Earth with only three Starships. More tower defence games | |||
| Galaxy Guardian Game Plays: 7000 Category: Action Defend Earth from alien invasion. |  Green alien invasion GamePlays: 6527 Category: Adventure save green alien. | |||
 Xyphrilli Infinite Legion GamePlays: 6224 Category: Shooting Xyphrilli Infinite Legion is an intergalactic shooter where the player has to save the earth from the evil machine army called the Xyphrilli. There are eight stages, each with it's own unique boss. |  BFD (Bovine Flatulent Defense) GamePlays: 5500 Category: Strategy You play as a dairy farmer in a time when hostile aliens are invading the Earth. The only weakness that the aliens have is to the flatulents produced by bovine mammals... cows. You control the cows, equipping them with various weapons, and fighting various enemies leading up to a mother-ship battle. | |||
 Troops Tower Defense GamePlays: 5437 Category: Action Protect the planet from alien invasion, buy cannons, get money, make upgrades, win challenges, unlock achievements and be the best of ranking. |  Alien Escape! GamePlays: 5369 Category: Action Defeat aliens and make your escape! | |||
 Last Hope TD GamePlays: 5211 Category: Action Welcome to Last Hope TD! Your main task will be protecting the Earth from alien invasion. To fulfill this important mission you will have the ship class AT-021. Unfortunately the Earth does not have enough resources to supply new arms to the ship, but you can improve the ship collecting weapons in the rubble after the fight. You can also buy combat turrets with unique properties and improve them. The campaign consists of 5 levels. Also available 2 additional free games. |  Space Explorer Game GamePlays: 5132 Category: Action Space Explorer is the sci-fi top down action game with some RPG elements. You control the space ship in hostile environment of Alien base and should find the way to stop Alien invasion. | |||
 Alien Invasion GamePlays: 5059 Category: Action Stop the Alien Invasion! |  Extraterrestrials GamePlays: 5006 Category: Shooting Obtain as many points as you can while fighting off the Alien Invasion with a variety of weapons. | |||
 OBL: One Button Left GamePlays: 4959 Category: Action Stop the alien invasion with your trusty space ship and avoid being hit. Actually, it is a typical hunt for the high score with an ever increasing difficulty. |  Alien Planet - BloodLust Mochi Edition GamePlays: 4896 Category: Action You are a space marine trainee who is assigned to protect a corporate flag from alien invasion. Protect your flag from being captured to the greys' UFO. Collect items that are dropped from your mothership and kill the incoming aliens. The key to survive in this game is to choose the right weapon against different kinds of enemy and balance the time for picking up items and protecting the flag. | |||
 Zegaloth Offensive GamePlays: 4841 Category: Action Zegaloth Offensive is a flash shooter game where you must defeat the Zegaloth Engineering Strike Team before they disable the beseiged planets generators. | the Utans Game Plays: 4622 Category: Fighting Planet Mavas is under attack by mysterious Alien! you, as the saviour of the Utans, must command them and bring an end to the Alien invasion! Build basic melee or range trees, upgrade them, or SEED UPGRADE them! to make them even more powerful! | |||
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