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Platform Games → UFO Defense Game
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Description of UFO Defense Game
UFO Defense game is in the category of Platform Games and you can play this free game at OB Games. Shoot enemies and clear the boss to complete each of your missions. Defend earth from the invaders!
Instructions:
Arrow keys or tap to shoot white or black
General Instructions:
You can play this game for free. On your computer, you can play this game with your mouse or the arrow keys on your keyboard. On your mobile phone or tablet, you can play this game on touch screens by tapping or swiping. The game should fit on your screen. If there is a notification about the orientation of your phone or tablet, please rotate your phone or tablet to correct the orientation. Refresh the page if necessary. If you need help, please leave a comment below the game. You can open other games from below by selecting the recommended games, next or previous games. You can also browse the category you want to play. We wish you luck...
Recommended Games:
Last Ufo Defense
Last Ufo Defense
Last UFO DefenseThe galaxy is no safe place.
As the last UFO of your kind, you stand alone against endless waves of hostile alien forces determined to wipe you out.
Pilot your hovering warship and unleash its full potential:One UFO, endless enemies.
Survive as long as you can with precise upgrades and tactical choices.
Face relentless alien swarms in an endless survival challenge.You are the final line of defense in a hostile galaxy.
How long can the last UFO endure?
Instructions:
use mouse or tap to interact with game elements.
Last UFO DefenseThe galaxy is no safe place.
As the last UFO of your kind, you stand alone against endless waves of hostile alien forces determined to wipe you out.
Pilot your hovering warship and unleash its full potential:One UFO, endless enemies.
Survive as long as you can with precise upgrades and tactical choices.
Face relentless alien swarms in an endless survival challenge.You are the final line of defense in a hostile galaxy.
How long can the last UFO endure?
Instructions:
use mouse or tap to interact with game elements.
Archer vs Zombies: Among Us
Archer vs Zombies: Among Us
Archer vs Zombie Among As — an amazing game in the style of "Tower Defense", in which you will defend the castle from the invasion of impostors zombies Among As. To start playing, click on the arrow in the center. Hordes of alien zombies have arrived on Earth. Master your archery skills to kill all the Among As and their UFOs. The zombies Among As need to be hit several times to kill. The level is given 3 pieces of additional weapons: bombs and burning arrows. They are displayed in the upper-left corner. Tap on the icon to use it. Also, between the rounds of the game, you can buy bombs, the speed of shots for the money earned in the battles. This will make it easier to fight the zombies.
* This application is entertainment and does not claim copyright in any way. All rights to the product Among Us belong to the developer Innersloth.
Instructions:
Touch or mouse control
Archer vs Zombie Among As — an amazing game in the style of "Tower Defense", in which you will defend the castle from the invasion of impostors zombies Among As. To start playing, click on the arrow in the center. Hordes of alien zombies have arrived on Earth. Master your archery skills to kill all the Among As and their UFOs. The zombies Among As need to be hit several times to kill. The level is given 3 pieces of additional weapons: bombs and burning arrows. They are displayed in the upper-left corner. Tap on the icon to use it. Also, between the rounds of the game, you can buy bombs, the speed of shots for the money earned in the battles. This will make it easier to fight the zombies.
* This application is entertainment and does not claim copyright in any way. All rights to the product Among Us belong to the developer Innersloth.
Instructions:
Touch or mouse control
Invaders Combat EG
Invaders Combat EG
Invaders Combat is a game of Arcade type spaceships, if you liked the mythical games of yesteryear, Invader Combat will not let you down.
This game is set in the games of the recreational machines of the 70 and 80.
It starts easy ... it gets complicated later
Can you get over it?...
Instructions:
Only right arrow + left arrow
Mouse for options while playing
Invaders Combat is a game of Arcade type spaceships, if you liked the mythical games of yesteryear, Invader Combat will not let you down.
This game is set in the games of the recreational machines of the 70 and 80.
It starts easy ... it gets complicated later
Can you get over it?...
Instructions:
Only right arrow + left arrow
Mouse for options while playing
STOP Trump vs Kim Jong-Un
STOP Trump vs Kim Jong-Un
This little alien is going to try along with your help to save the Earth.The last war for humanity has begun TRUMP VS KIM JONG-UN.Where there are no winners just lose GOOD LUCK ! :)
Este pequeno alien va a intentar junto con tu ayuda salvar la Tierra.Ya comenzo la ultima guerra para la humanidad TRUMP VS KIM JONG-UN .donde no hay ganadores solo perdedMUCHA SUERTE ! :)
Instructions:
Move the mouse to aim.Hold down the click to shoot
This little alien is going to try along with your help to save the Earth.The last war for humanity has begun TRUMP VS KIM JONG-UN.Where there are no winners just lose GOOD LUCK ! :)
Este pequeno alien va a intentar junto con tu ayuda salvar la Tierra.Ya comenzo la ultima guerra para la humanidad TRUMP VS KIM JONG-UN .donde no hay ganadores solo perdedMUCHA SUERTE ! :)
Instructions:
Move the mouse to aim.Hold down the click to shoot
UFO Defense
UFO Defense
Shoot enemies and clear the boss to complete each of your missions. Defend earth from the invaders!
Instructions:
Arrow keys or tap to shoot white or black
Shoot enemies and clear the boss to complete each of your missions. Defend earth from the invaders!
Instructions:
Arrow keys or tap to shoot white or black
Ultimate Tower Defense
Ultimate Tower Defense
Ultimate Tower Defense is an exciting strategy game that perfectly blends tower defense, battle, and fast-paced action into one addictive experience. In the game, you must carefully protect defense towers and deploy powerful heroes to stop endless waves of enemies. Each tower has unique attack abilities. Select your preferred mode to begin the challenge.
Instructions:
Mouse click or tap to play
Ultimate Tower Defense is an exciting strategy game that perfectly blends tower defense, battle, and fast-paced action into one addictive experience. In the game, you must carefully protect defense towers and deploy powerful heroes to stop endless waves of enemies. Each tower has unique attack abilities. Select your preferred mode to begin the challenge.
Instructions:
Mouse click or tap to play
Noob Village Tower Defense
Noob Village Tower Defense
Dive into the dynamic world of a 2D platformer, where you play as a noob fighting for the survival of your village! Your main goal is to protect the village from endless waves of monsters appearing from an ominous portal. Control the tower manually: select shells, adjust the trajectory and shoot enemies one by one. Only your accuracy and tactics will help you survive the onslaught!
Instructions:
The goal of the game is to protect the noob village from waves of monsters using manual tower control, improve its defense, develop the settlement, extract resources and build an effective survival strategy.
Dive into the dynamic world of a 2D platformer, where you play as a noob fighting for the survival of your village! Your main goal is to protect the village from endless waves of monsters appearing from an ominous portal. Control the tower manually: select shells, adjust the trajectory and shoot enemies one by one. Only your accuracy and tactics will help you survive the onslaught!
Instructions:
The goal of the game is to protect the noob village from waves of monsters using manual tower control, improve its defense, develop the settlement, extract resources and build an effective survival strategy.
Xeno Defense Protocol
Xeno Defense Protocol
Xeno Online combines high-octane top-down shooting with strategic tower defense and deep RPG progression. Your mission is simple: Establish a base, defend it against endless waves of insectoid horrors, and extract with your life.
Instructions:
WASD, Mouse, R, G, Mouse Wheel, Space
Xeno Online combines high-octane top-down shooting with strategic tower defense and deep RPG progression. Your mission is simple: Establish a base, defend it against endless waves of insectoid horrors, and extract with your life.
Instructions:
WASD, Mouse, R, G, Mouse Wheel, Space
Frost Defense
Frost Defense
❄️ Embark on a thrilling journey through a frozen wilderness in Frost Defense, a strategic tower defense game that puts your tactical skills to the test! ??
In this action-packed adventure, you'll take on the role of a lone survivor ?♂️ battling against the relentless onslaught of arctic creatures ??❄️?.
The enemy is merciless — only your ingenuity and strategic prowess can keep you alive in this harsh frozen world. ⚔️?️
Instructions:
Use mouse to draw path and click on machine to upgrade
❄️ Embark on a thrilling journey through a frozen wilderness in Frost Defense, a strategic tower defense game that puts your tactical skills to the test! ??
In this action-packed adventure, you'll take on the role of a lone survivor ?♂️ battling against the relentless onslaught of arctic creatures ??❄️?.
The enemy is merciless — only your ingenuity and strategic prowess can keep you alive in this harsh frozen world. ⚔️?️
Instructions:
Use mouse to draw path and click on machine to upgrade
Grass Defense
Grass Defense
Grass Defense is a strategic tower defense where you must protect the wilderness from waves of fierce creatures. Build and upgrade powerful towers, manage resources, and adapt your tactics as enemies grow stronger. With dynamic environments, diverse foes, and challenging levels, you’ll test your strategy and skill to survive the untamed wilds and uncover hidden mysteries.
Instructions:
Use the left mouse button to interact
Grass Defense is a strategic tower defense where you must protect the wilderness from waves of fierce creatures. Build and upgrade powerful towers, manage resources, and adapt your tactics as enemies grow stronger. With dynamic environments, diverse foes, and challenging levels, you’ll test your strategy and skill to survive the untamed wilds and uncover hidden mysteries.
Instructions:
Use the left mouse button to interact
Monkey Bubble Defense
Monkey Bubble Defense
Survive the bubble invasion in this fast-paced 2D top-down tower defense game. Construct and upgrade various defensive turrets to take down hordes of bubbles.
Earn cash by popping bubbles. Use cash to to purchase new towers, upgrade existing ones, or sell for cash and reinvest into a different turret.
Instructions:
Construct turrets to protect your base from rogue bubbles.
Survive the bubble invasion in this fast-paced 2D top-down tower defense game. Construct and upgrade various defensive turrets to take down hordes of bubbles.
Earn cash by popping bubbles. Use cash to to purchase new towers, upgrade existing ones, or sell for cash and reinvest into a different turret.
Instructions:
Construct turrets to protect your base from rogue bubbles.
Farm Defense
Farm Defense
Farm Defense is a fast, arcade-style shooter where you guard your ranch from waves of quirky mutants. Move between lanes, aim, and blast anything that crawls out of the burrows before it reaches your crops. Earn coins, unlock new weapons and gadgets, and power up your electric fence. Bright visuals, snappy controls, and escalating waves make every run tense and satisfying.
Instructions:
Swipe or use the arrow keys to switch lanes. Pick up coins and boosters, then invest them between waves to upgrade damage, fire rate, ammo, or special skills. Keep enemies from crossing the defense line—survive the wave to advance. Tougher creatures and mini-bosses appear later, so manage your upgrades wisely and protect the farm!
Farm Defense is a fast, arcade-style shooter where you guard your ranch from waves of quirky mutants. Move between lanes, aim, and blast anything that crawls out of the burrows before it reaches your crops. Earn coins, unlock new weapons and gadgets, and power up your electric fence. Bright visuals, snappy controls, and escalating waves make every run tense and satisfying.
Instructions:
Swipe or use the arrow keys to switch lanes. Pick up coins and boosters, then invest them between waves to upgrade damage, fire rate, ammo, or special skills. Keep enemies from crossing the defense line—survive the wave to advance. Tougher creatures and mini-bosses appear later, so manage your upgrades wisely and protect the farm!
Neighborhood Defense
Neighborhood Defense
Neighborhood Defense is a dynamic tower defense strategy game where your mission is to protect your neighborhood from waves of zombies. Diverse maps with multiple exits, different types of enemies, and limited tower spots make each match unique. Upgrade your towers, combine their abilities, and plan your tactics carefully to stop the horde and prevent them from breaking through.
Instructions:
At the start of each level, choose free spots to place towers: archers, bombers, snipers, or electric turrets. Each tower has three upgrade levels that increase damage and attack range. Watch out for zombie waves — warnings will show where they appear. Focus on blocking key paths and managing your resources wisely to hold back stronger enemies. If too many zombies break through the exit, the game is over.
Neighborhood Defense is a dynamic tower defense strategy game where your mission is to protect your neighborhood from waves of zombies. Diverse maps with multiple exits, different types of enemies, and limited tower spots make each match unique. Upgrade your towers, combine their abilities, and plan your tactics carefully to stop the horde and prevent them from breaking through.
Instructions:
At the start of each level, choose free spots to place towers: archers, bombers, snipers, or electric turrets. Each tower has three upgrade levels that increase damage and attack range. Watch out for zombie waves — warnings will show where they appear. Focus on blocking key paths and managing your resources wisely to hold back stronger enemies. If too many zombies break through the exit, the game is over.
Aod - Art Of Defense
Aod - Art Of Defense
Step into the world of AOD - Art Of Defense, a free online strategy game where your main goal is to stop enemy waves by placing towers in smart locations. Play on your phone or computer and test your skills in this action-packed defense challenge. Every move matters—can you build the perfect defense?
Instructions:
Use the left mouse button to place a tower.
Use the scroll wheel/pinch to zoom on a touchpad to zoom in or out.
Step into the world of AOD - Art Of Defense, a free online strategy game where your main goal is to stop enemy waves by placing towers in smart locations. Play on your phone or computer and test your skills in this action-packed defense challenge. Every move matters—can you build the perfect defense?
Instructions:
Use the left mouse button to place a tower.
Use the scroll wheel/pinch to zoom on a touchpad to zoom in or out.
Tower Guardian - Epic Defense
Tower Guardian - Epic Defense
- Strategically summon warriors and unleash devastating abilities to protect your tower from hordes of enemies!
- Fight off waves of monsters, unlock new levels, and upgrade your heroes as you rise to become the ultimate protector. Every wave gets tougher—only the strong and strategic will survive.
- Rotate around the tower, lock onto approaching foes, and eliminate them before they breach your defenses!
With each wave, enemies grow stronger and more numerous.
Instructions:
Mouse Left Click: Rotate the player to aim and destroy enemies.
- Strategically summon warriors and unleash devastating abilities to protect your tower from hordes of enemies!
- Fight off waves of monsters, unlock new levels, and upgrade your heroes as you rise to become the ultimate protector. Every wave gets tougher—only the strong and strategic will survive.
- Rotate around the tower, lock onto approaching foes, and eliminate them before they breach your defenses!
With each wave, enemies grow stronger and more numerous.
Instructions:
Mouse Left Click: Rotate the player to aim and destroy enemies.
U Shape Puzzle
U Shape Puzzle
U Shape Puzzle is a unique and satisfying puzzle game where you tap on U-shaped blocks to slide them out — but only if the path is clear! Think before you tap, plan your moves, and remove every U block to finish the level.
With simple one-touch controls and brain-teasing logic, this game is perfect for casual players who love puzzles with a twist.
Instructions:
Tap to unlock
U Shape Puzzle is a unique and satisfying puzzle game where you tap on U-shaped blocks to slide them out — but only if the path is clear! Think before you tap, plan your moves, and remove every U block to finish the level.
With simple one-touch controls and brain-teasing logic, this game is perfect for casual players who love puzzles with a twist.
Instructions:
Tap to unlock
Stickman Guys Defense
Stickman Guys Defense
Stickman Guys Defense is an action-packed tower defense game where you must protect your base from endless waves of enemies! Command a team of brave stickman warriors, place them strategically, and upgrade their abilities to stop the invasion. From archers to sword fighters, build the ultimate defense and survive each level!
Can you defend your land and become the ultimate Stickman commander?
Instructions:
Mouse Click
Stickman Guys Defense is an action-packed tower defense game where you must protect your base from endless waves of enemies! Command a team of brave stickman warriors, place them strategically, and upgrade their abilities to stop the invasion. From archers to sword fighters, build the ultimate defense and survive each level!
Can you defend your land and become the ultimate Stickman commander?
Instructions:
Mouse Click
World Z Defense - Zombie Defense
World Z Defense - Zombie Defense
Zombies have taken over the world! Unlock bases and deploy soldiers with unique weapons, each with stats like damage, fire rate, and reload speed. Soldiers must reload at the base before defending. Place them wisely to stop zombies within range. Defeat waves to earn coins, upgrade bases, and survive stronger hordes. Strategically choose soldiers to clear waves and save cities across the globe.
Instructions:
Use the left mouse button to select and drop Soldiers and interact with in-game UI.
Zombies have taken over the world! Unlock bases and deploy soldiers with unique weapons, each with stats like damage, fire rate, and reload speed. Soldiers must reload at the base before defending. Place them wisely to stop zombies within range. Defeat waves to earn coins, upgrade bases, and survive stronger hordes. Strategically choose soldiers to clear waves and save cities across the globe.
Instructions:
Use the left mouse button to select and drop Soldiers and interact with in-game UI.
Tower Defense
Tower Defense
In Tower Defense, you will direct a powerful army of defense towers to face enemy attacks. Arrange your defense towers carefully and develop the strategy to repel the enemy. Each tower has different attack powers and abilities. Unlock the right type and placement. Update your soldiers to help you battle. Use your crossbow to take them out.
Instructions:
Mouse click or tap to play
In Tower Defense, you will direct a powerful army of defense towers to face enemy attacks. Arrange your defense towers carefully and develop the strategy to repel the enemy. Each tower has different attack powers and abilities. Unlock the right type and placement. Update your soldiers to help you battle. Use your crossbow to take them out.
Instructions:
Mouse click or tap to play
Limited Defense
Limited Defense
Limited Defense is a strategic tower defense game where you command bandits, archers, and explosive towers to hold back relentless waves of enemies. Face off against mischievous Green Slimes, fearsome Orcs, and towering bosses like the Boss King Slime. Upgrade your defenses, unlock legendary warriors, and test your tactical skills in intense, fast-paced battles!
Can you make it in this tower defense game?
Instructions:
Use the left mouse button to drag and drop the allies. Click them to upgrade and sell.
Limited Defense is a strategic tower defense game where you command bandits, archers, and explosive towers to hold back relentless waves of enemies. Face off against mischievous Green Slimes, fearsome Orcs, and towering bosses like the Boss King Slime. Upgrade your defenses, unlock legendary warriors, and test your tactical skills in intense, fast-paced battles!
Can you make it in this tower defense game?
Instructions:
Use the left mouse button to drag and drop the allies. Click them to upgrade and sell.
Comments to the Game:
Ali | 7/8/2013 11:29:56 AM
I would recommend to anyone to play this super free flash game online. OB Game's other flash games are also superb. I love this site and I would recommend it to anyone.