Top similar games like SYNCHRONIZERS: UNDEAD MARINES:

Manny TD is a hybrid tower defense and third-person shooter with random in game elements. Join and get your personal high score!

A turn-based free-move strategy game. Walk/Run/Sprint freely without the grids. Your attack could be countered so choose your next move wisely.

Gear up and get going! Defend your outposts from waves of alien enemies with your mech. Build and upgrade your base, protecting the extraction of the mysterious planetary system’s rich resources!

Tanks Etc. is a modern reimagining of co-op overhead arcade classics; it offers classic gameplay while adding in depths of strategy to keep players reinventing strategies for waging war with their friends.

Dive into the strategic depths of "Crystal Nexus: Alien Siege," where the essence of tower defense merges with the ingenuity of deck-building. Operate from a corporate space station, leveraging your wits and a futuristic arsenal to counter a relentless alien threat.

Build towers and learn abilities to defend against swarms of hundreds of on-screen hostile alien creatures. Choose between sets of randomized upgrades that both upgrade you and the alien swarm. From enormous explosions to far-reaching flamethrowers, no two games are the same.

Assume the role of a Space Fleet Captain and take part in numerous space battles as you travel across the galaxy and fight to save humanity. This cinematic narrative driven action-focused space shooter, will take you on a journey into the near future, and put the destiny of mankind in your hands.

Save Our Solar System brings a fresh look on the tower defense genre. Shape the world around you with a lovable playable character. Harvest metal to upgrade towers. Collect rocket parts to advance to further planets. Fend off endless waves of asteroids.

Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm. Upgrade and adapt your defenses. Become a master maze crafter. Collect bizarre artifacts. Rush creeps for lucrative rewards, and succumb to greed!

The Wave is a solo Action-shooter RPG, set on various planets within the galaxy. The player will conduct missions from your direct commander and your own secret missions to discover your past. You can also decide on your equipment and customize your own ship before in-between missions.

Set in the year 2095, 2 years after the devastating Huaxia War, As a Vanguard soldier, fight for humanity's survival against the relentless alien threat. Engage in intense multiplayer battles. Choose your side: fight for the heroic Vanguard or join the sinister R.E.A.P.E.R. forces.

Join our machine legion to conquer the world.

SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.

Aliens In Paradise is a Shoot'em Up game inspired by shooter games like Contra. Aliens Start invading The Bahamas. They destroy the main characters house so he sets out on a revenge quest to destroy as much Aliens and their Ships as possible. His thirst for revenge may actually save the world.

Debt-ridden and desperate? Get out of the red and into The Red! Join the Red Horizons on Mars as an Extraction Security Associate and pay off your debts by defending your way to wealth in this ironic first-person-shooter/tower-defensy/existential-horror adventure!

Players measure stamina with a never-ending stream of green creatures within the borders of a special military mission.

Defend crystal from the relentless bug invaders! Carry out missions by developing strategies in real time to gather energy and strengthen structures or summon companion units.

Evasion from Cluster 42, an arcade spaceshooter for 1 or 2 players with 3D GFX and a Background Story. Play every level from top down view or from side view. You'll get a different view and a different experience that way for each level!

Galactic Garrison is a sci-fi, turn-based tower defense game where you defend your base from relentless alien waves on Mars. Deploy soldiers, build barricades, and upgrade defenses to withstand attacks. Earn powerful reward cards to gain strategic advantages and outmaneuver your enemies.

AT THE LIMITS OF EARTH, AT THE EXTREMITY OF HEAVEN. A REAL-TIME STRATEGY NIGHTMARE.

Cyber Avenger is a top-down action game where you take on the role of a highly skilled covert operative on a dangerous mission to stop a group of terrorists. You must navigate through five maps, facing a variety of enemies, including shotgunners, snipers, melee fighters, kamikazes, and more.

Place the towers on the fragile energy rings. Manage your army, use resources wisely, and upgrade towers and special weapons. Welcome to an atmospheric world full of surprises and long adventures.

Strategy, timing and fortune: Novel and immersive tower defense game experience!

Engineered to Purpose is a new tower defence game where you custom-design towers to defend your base, with millions of builds to explore and refine. Set in the far future, E2P's story of posthumanism, family, and change will open new worlds to explore and survive.

A Roguelike Tower Defense in space with missions to conquer. Can you hold against the spreading alien bosses? Build and upgrade towers against the corruption. Choose your technologies and warpspeed your way to victory.

6 different types of towers! 4 planets with different characteristics! 25 different enemies. Drones, Tanks, Biorobotic enemies and many different ground and air vehicles! Snowy and Glacial maps, Desert and Arid lands! Prepare to defend the solar system against invaders!

Millennium Conflict: a real-time strategy game set in space where you must act fast to stop attackers from conquering your universe. With 40 levels, weapon upgrades, and new generals to recruit, it's up to you as the only surviving male to lead your troops to victory.

Zero-Point is a 3D space roguelike featuring tactical ship-to-ship combat, crew command and an immersive view of your ship's interior. As Captain of a Star Federation cruiser, lead your crew and ship to victory over the rebellious Galactic Liberation Front!

A modern retro inspired side scrolling shooter with a deep upgrade system and the ability to absorb enemy fire and also deflect it back to your enemies. A fast paced shooter that can be played solo or local co-op with 12 difficulty modes and lots of boss battles.

A sci-fi roomscale VR Tower Defense game. Strategize to destroy waves of rogue robots and assist the powerful turrets with a handheld drone. Build and collect resources and help evacuate your crew from the alien planet.

The day has come… Humanity has been attacked by an alien race.You have space bases at your disposal. Use them to launch battleships and take over the alien mothership.

Sphere Invasion is Sci-Fi Tower Defence. Build your own road and defend it with 7 unique towers.

The City of Fury is a SWAT-like team management RTS set in a dystopian Cyberpunk-Noir setting, where you play as the team leader who gets involved in shady matters. Explore the themes of violence as you face the harsh city with your team to ultimately break free from the circle!

Defend the evacuation of Terra on the losing side of an alien invasion. This experimental action strategy game breaks out of genre norms to provide fresh mechanics to strategic gaming.

Place defenses strategically, upgrade and combine them. Protect planet orbits with your fleet. Face hordes of meteors in endless 3D levels. Compete on the global leaderboard! Can you make it to the top 10?