Games like Alien Defense
If Alien Defense is your kind of game, the closest matches are Tower Defense: Last Castle, Throbax TD and Empires in Ruins — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
Get personalized picks →About Alien Defense: At night, Alien breaks into the base. Place the defenses tower and units properly and defeat all Aliens invading the base
Players who liked Alien Defense also play
Steam players who put hours into Alien Defense also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.
Tower Defense: Last Castle
WHY THIS
Top pick for Alien Defense fans by collaborative filtering across millions of Steam libraries. Shares Indie with Alien Defense.
In the depths of an ancient forest, your castle the last human stronghold stands as the final bastion against a monstrous horde. Strategize your defense by employing soldiers, traps, towers, and even the monsters themselves.
Throbax TD
WHY THIS
Second-strongest match for Alien Defense fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Defense.
Throbax TD is the "Tower Defense" game you are looking for: Help Ughlar fight his way through 50 levels, buy over 100 upgrades and get all of the 50+ achievements.
Empires in Ruins
WHY THIS
Third-strongest match for Alien Defense fans by collaborative filtering across millions of Steam libraries. Shares Indie and RPG with Alien Defense.
The bastard child of Grand Strategy and Tower Defense, with a black humor infused plot, set in a grim, disillusioned world. Quell the rebellion, tame the Western Marches, disobey your orders and save your brandy. Not strictly in this order.
Halloween Defense
WHY THIS
Ranked #4 for Alien Defense fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Defense.
The top of strategy battle game! Build villages and train units to defeat ghouls
Warpips
WHY THIS
Ranked #5 for Alien Defense fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Defense.
Warpips is the ultimate quick to learn but amazingly deep tug-of-war strategy game. Deploy the right composition of soldiers, tanks, helicopters and planes in this tight, streamlined strategy-focused war game. Compose the best army, research the right tech; overwhelm your enemy!
Dread Dawn
WHY THIS
Ranked #6 for Alien Defense fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Defense.
This is an open-world zombie survival game set in a quarantined city. You play as a student left behind due to missing the evacuation convoy. Together with classmates and other survivors, you must defend the school, survive, and await rescue.
Alien Hallway
WHY THIS
Ranked #7 for Alien Defense fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Defense.
Players measure stamina with a never-ending stream of green creatures within the borders of a special military mission.
Cheaper alternatives
Games in the same vein priced at least 40% below Alien Defense at current Steam store prices.
POSTAL 2
WHY THIS
Priced ~67% under Alien Defense on Steam right now. Shares Action and Indie with Alien Defense.
Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?
Milk inside a bag of milk inside a bag of milk
WHY THIS
Priced ~50% under Alien Defense on Steam right now. Shares Indie with Alien Defense.
A short story about what sort of challenges everyday little things can be. Help the girl buy milk, be the first not to disappoint her.
Blood and Bacon
WHY THIS
Priced ~67% under Alien Defense on Steam right now. Shares Action with Alien Defense.
This Co-op Shooter , has Day and Night levels, multiple maps, players will take on 25 enemy types and numerous bosses, like Gargantuan Monsters and Minibosses every 10 days as you explore, shoot and run for your life against the onslaught of porcine monstrosities.
shapez
WHY THIS
Priced ~67% under Alien Defense on Steam right now. Shares Indie with Alien Defense.
shapez is an easy-going, minimalistic factory building game about the automation of shapes through extraction and satisfying production lines. Adapt to increasingly complex shapes and grow your factory across an infinitely expanding map. Your only limitation is your creativity!
Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
WHY THIS
Priced ~67% under Alien Defense on Steam right now. Shares Action and Indie with Alien Defense.
"Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad?" is a fast paced shower-simulation where you shower with your 8-bit dad.It's good, clean fun!
Bit Blaster XL
WHY THIS
Priced ~67% under Alien Defense on Steam right now. Shares Action and Indie with Alien Defense.
Bit Blaster XL is a fast-paced, retro arcade shoot 'em up (shmup) inspired by the classic quarter-munchers of the ‘80s. Easy to pick up, hard to put down, boost, dodge, shoot, and chase high scores in this addictive, old-school action game!
Dictators:No Peace Countryballs
WHY THIS
Priced ~67% under Alien Defense on Steam right now. Shares Indie with Alien Defense.
Dictators : No Peace Countryballs is a war simulation and dictator game. This is a fun,simple and some say a funny countryballs game. If you like simulation games, you will love playing Dictators : No Peace. Play as a dictator of your favourite country and colonize the world.
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Eternal Senia
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Alien Defense.
Thoughts and expectations ARPG
Tails Noir: Prologue
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and RPG with Alien Defense.
Tails Noir: Prologue is the first act of a post-noir narrative adventure. Become raccoon private eye Howard Lotor and explore dystopian Vancouver inhabited by animals as you uncover a deeply personal story of change and transformation.
Princess Remedy in a World of Hurt
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Alien Defense.
Remedy, a recent graduate from the Saturnian healing school, must descend to Hurtland and use her powers to heal everyone from stray ducks to dark lords, and finally cure the ailing Prince Hingst. It's a short, whimsical adventure with plenty of heart(s).
Epic Battle Fantasy 3
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and RPG with Alien Defense.
Epic Battle Fantasy 3 is a silly turn-based JRPG, full of useless NPCs, rabid cats, childish humor, unreasonably large weapons, anime boobs, and other nonsense. And it's totally free!
The Riftbreaker: Prologue
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Alien Defense.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
Trick & Treat
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Alien Defense.
Trick or treating in a vampire's house.Trick & Treat is a light-hearted Halloween adventure. It's about exploring and solving puzzles in a spooky atmosphere. There will be some horror elements, romance, many bad ends and a happy ending of true love.
Fallout Shelter
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares RPG with Alien Defense.
Fallout Shelter puts you in control of a state-of-the-art underground Vault from Vault-Tec. Build the perfect Vault, keep your Dwellers happy, and protect them from the dangers of the Wasteland.
Clicker Heroes
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Alien Defense.
Click your way through hordes of monsters, earn gold, and recruit quirky heroes with powerful skills. Progress even while you're idle, and watch the numbers climb into the absurd. It’s a never-ending journey of clicks, crits, and colossal damage.
Narrow it down
Head-to-head comparisons
More from MoonlightGames
Other recommendable Steam games by MoonlightGames, ranked by review count so the studio's hits land first.
Moonlight Warrior
WHY THIS
Another title from MoonlightGames, the studio behind Alien Defense. Shares Action and Indie with Alien Defense.
One person developer made marvelous turn-based game which can beat 43 stages
Zombie Rush : Extinction
WHY THIS
Another title from MoonlightGames, the studio behind Alien Defense. Shares Action and Indie with Alien Defense.
The top of strategy battle game! Build villages and train units to defeat zombies
Dragon Stone - Legendary Archer
WHY THIS
Another title from MoonlightGames, the studio behind Alien Defense. Shares Action and Indie with Alien Defense.
This game is a hero defense game where you have to collect items and raise your hero's stats quickly in order to stop the monsters which getting stronger gradually.
Tower of God
WHY THIS
Another title from MoonlightGames, the studio behind Alien Defense. Shares Action and Indie with Alien Defense.
Turn-Based Action RPG
Zombie Rush - Heroes
WHY THIS
Another title from MoonlightGames, the studio behind Alien Defense. Shares Action and Indie with Alien Defense.
Build villages and train units to defeat zombies
Kingdom of Heroes
WHY THIS
Another title from MoonlightGames, the studio behind Alien Defense. Shares Action and Indie with Alien Defense.
An RPG game that grows by defeating monsters to level up and making a variety of items.
a survivor girl
WHY THIS
Another title from MoonlightGames, the studio behind Alien Defense. Shares Action and Indie with Alien Defense.
A girl who crashes on exoplanet begins to survive desperately.
Frequently asked about Alien Defense
- Does Alien Defense run on Steam Deck?
- Alien Defense is rated Playable on Steam Deck — it runs, but expect some manual adjustments (control remapping, text size, or graphics settings) for the best experience.
- How much does Alien Defense cost?
- Alien Defense is listed on Steam at 2.99 USD (current store price; Steam sales may reduce this temporarily).
- What games are most similar to Alien Defense?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Alien Defense are Tower Defense: Last Castle, Throbax TD, Empires in Ruins.
- Who developed Alien Defense?
- Alien Defense was developed by MoonlightGames.
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Alien Defense.
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