Games like Alien Shooter TD on Steam
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clickyland
clickyland is a tower defense village builder where clicks are your main resource. Use clicks to harvest resources, fight enemies and manage your village, but use them wisely as you only get 20 clicks every day! Can you reach day 100?
Fort Defense
All hands on deck! Pirate armada dead ahead! Take part in an uncompromising struggle repelling freebooters' assaults. Watch out, the enemy may catch the tide for ruining your fortress. Build towers, collect crystals, upgrade spells and believe in your victory!
NecroVision
War is Hell. NecroVision is a first-person shooter that takes gamers across the frantic battlegrounds of World War I and into a dark underworld of vampires, demons and dark magic.
Hidden & Dangerous 2: Courage Under Fire
Hidden & Dangerous 2 is a first and third person tactical shooter that builds upon the tremendous success of Hidden & Dangerous. You lead a small squad of Allied soldiers deep behind enemy lines, to carry out secret missions during World War II.
Death Goat
Death Goat is a bloody arcade shooter featuring hordes of brutal enemies & eardrum destroying Heavy Metal.
The Bureau: XCOM Declassified
The year is 1962 and the Cold War has the nation gripped by fear. A top-secret government unit called The Bureau begins investigating a series of mysterious attacks by an enemy more powerful than communism.
I'm on Observation Duty 2
Your job is to monitor live surveillance camera footage and spot anomalies in the monitored rooms. Anomalies range from furniture movement to otherworldly intruders. When you spot an anomaly you have to file a report to fix it. You will need sharp eyes and good memory to survive the entire night.
The Dishwasher: Vampire Smile
The followup to 2009's Dead Samurai, The Dishwasher: Vampire Smile is a combo-fueled, fast-paced, stylistic 2D action platformer that features the series' staple gritty, graphic novel-inspired art style, built on a new engine that allows for an even more visually gruesome experience.
Jack Lumber
A tree killed his granny and now he is out for revenge. Meet Jack Lumber, the supernatural lumberjack who hates trees, loves animals, and hates trees. Did we say that twice? The guy really hates trees, and boy does he have an axe to grind.
Deep Space Battle Simulator
Two teams of players control their capital ship in an epic battle. Customize your ship, control its movement, weapons, and energy distribution or go to one of the hangars to join the battle in a smaller fighter!
Delivery from the Pain:Survival / 末日方舟:生存
You'll play as a survivor in a world overrun by zombies. Explore and interact with other survivors, making tough choices about whether to help or exploit them. Defend against zombies, collect resources, craft, and fortify your shelter. Use strategy to escape this world and return to safety.
Guts and Glory
A game about father and son riding their bicycle through obstacle courses of death, and other fun family experiences. Created by HakJak
PixelJunk™ Monsters Ultimate
Tikiman the Forest Defender is in trouble. Hordes of monsters are sweeping through his realm, hoping to chow down on his offspring – and it’s up to you to defend them. By placing weapon towers at strategic points around the landscape, you can destroy the invaders and save the little ones.
Trapper's Delight
In Trapper's Delight players compete to construct deadly labyrinths and then try to escape in one piece. Lure your friends into your deadly trap in local and online multiplayer or test your skills in singleplayer challenges.
Wars and Warriors: Joan of Arc
Relive the most intense battle scenarios of medieval Europe in this third-person 3D epic saga. Brandish your sword as you slay enemies amidst adrenaline-pumping action while you lead your troops to victory.
BLADESTORM: Nightmare
BLADESTORM: Nightmare is the newest evolution of 2007’s BLADESTORM: The Hundred Years’ War using the latest technologies and introducing many new elements. These technologies have made possible not only visual improvements, but also many new game elements. BLADESTORM: Nightmare offers an entirely new gameplay experience.
Rise to Ruins
A brutal godlike village sim that melds the god game, management, and tower defense genres! Fight off hoards of monsters at night, and expand your village in the day time. Inspired by games like Black and White, Rimworld, and Dwarf Fortress but not quite like any of them.
OBEY
OBEY is an asymmetrical multiplayer game. In many games you send commands to teammates or AI units. In OBEY you command your (human) opponents, or are commanded by them. Players are always free to obey/disobey. And everyone deals with the consequences of their own decisions.
Not The Robots
You are a robot in an office building. You have to eat furniture and not get caught. A mysterious story unfolds.Not The Robots is this year’s most exciting Roguelike Stealth Furniture Eating Simulator. It’s a game with random levels, permadeath, and the goal of eating furniture - which is also your stealth cover.
Defend The Highlands
Defend the Highlands combines the genres of Tower Defence, Real Time Strategy, and Scotland. The player will have to build defences, recruit Scotsmen and manage their porridge stockpile as they fight off the British invasion of Scotland.
CRYPTARK
Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly alien space-hulks. It's up to you to strategize a plan of attack, pick an equipment loadout, and destroy the central core to be victorious.
Space Pirates And Zombies 2
Design and then improve the ultimate mothership. Explore a persistent living galaxy populated by 200 unique captains that can do everything you can do. Survive the zombie infection and then fight them back. Make allies and start your own faction. Build your empire. Also includes Sandbox Mode.