Top similar games like Ad Astra: Sci-Fi Tower Defense:

Frontier Control: Invasion is a Real-Time Strategy defense game in which you play the commander of a human space colony under the attack of outer space robots. Build your base, train your colony, and fight herds of enemies and bosses.

Final Outpost is a survival strategy base-builder. You lead the last survivors of the apocalypse. Assign roles, craft tools, and manage resources carefully. Construct buildings, level up your citizens, and fortify your town against hordes of zombies. How many days can you survive?

A minimalist game about fighting for freedom and independence in the United States of America!

Build towers, manage resources, and lead units to defend your kingdom against goblins. Every decision you make determines your kingdom's fate.

On planets occupied by robots, mine resources and escape while fending off their attacks! The Ark's survival is entirely in your hands. Many elite crews with abilities will assist you in your mission. The various turret modules are always doing their best to defend your base without your attention.

Lanternia is a survival RTS with roguelite and deckbuilding elements. Build, defend, and expand the village in a dark wood, illuminated only with lanterns.

A classic RTS with automated micromanagement. Workers perform their tasks and your army fights automatically. Free up your hands to focus on building a strategic defense for your base and craft an army and mighty heroes to destroy enemies on endless procedurally generated maps.

This game is a arcade block placing game mixed with action-packed Tower Defense gameplay mechanics. Build forts out of tetrominoes high up in the sky and defend it against the incoming waves of airships, by shooting at them with your minigun and building defenses!

A tower defense RTS where you are in the middle of the army instead of just overlooking it. Based in an apocalyptic Soviet Union.

A fastpaced, military tug-of-war game with minimal micromanagement. Choose and deploy from a mix of specialized military units to overwhelm the enemy. Experiment with a huge variety of unit compositions, synergies, abilities, and upgrades to lead your army to victory!

Diplomacy is Not an Option: Shareware is a free prequel to the original game. In a medieval fantasy world, you are to build settlements, raise huge armies, and defend against massive hordes of enemies. Learn how Ironbrow clan shaped the world's map the first time - if you survive, that is.

TAVU is a PvE RTS game with a tactical combat system. Build your bases and defend them against waves of enemy attacks. Upgrade your units and destroy enemy bases to gain new territories and resources.

Byte Lynx is a fast-paced RTS with no units. Build defenses, dismantle your enemy, and steal their buildings in this deeply tactical building combat-based strategy game. Expand your arsenal across a series of diverse levels!

Tin Lord is a hybrid of RTS and Tower Defense in a post-apocalyptic world where you control robots that rebuild technology and fight monsters in a destroyed world.

From Glory To Goo is a Sci-Fi Survival RTS set on an alien world. Serve as humanity's bulwark by establishing a colony and supporting your colonists still in orbit. But beware, for The Goo, a relentless and shape-shifting force approaches from all sides, even above and below.

Master strategic gameplay as you build, train, and upgrade units to protect your statue and king. Switch between leaders, unlock chests, and compete on the leaderboard. With stunning visuals, diverse zombies, and easy controls, it's an epic battle for survival!

OBA DOBA is a Roguelike RTS/Tower Defense that is fast, funny, and frantic. Defend your base with towers and fighters while managing your resources and upgrades. Build up your arsenal of structures, abilities, and passives to defeat the evils that await. Build, rebuild, and survive! (hopefully)

A 2D Strategic Base Defender game set in Medieval times. As relentless Waves of enemy forces threaten your Stronghold, you must gather Resources, Fortify your Defenses and lead your Rebellion. Prepare to strengthen your Base and manage your Resources. But beaware of the Storms!

Sorcs: Siege Chronicles is an indie 3D tower defense with: - Free positioning for towers - FPS mode - Configurable AI for towers - 4 skill trees - 25 levels with 3 difficulty modes - 20-25 hours to complete 100%

Open world, multiplayer online tower defense confrontation game. Fight with teammates to upgrade your heroes, build bases, produce your own troops, command troops to form formations, and defend or attack enemy positions. Come and build your online fortress together.

In this Procedural City-Building and Survival game, you must manage your resources, expand your village, assemble an army and destroy the source of evil, which changed the entire eco system of a land that was once prosperous and peaceful.

Defend humanity's last hope, pilot a powerful mech, in Frontlines Crisis! A battlefield swarming with insects makes strategic and combat decisions crucial. Each decision will determine your fate. Defend humanity's last sanctuary, fight fiercely, and uphold human honor with wits and courage!

Prevent the invasion of the minions that stimulate the desire for challenge and prove that you are a slayer physically and mentally.

Dangerous Land is a first-person strategic game enriched with elements of exploration and action. Assume the role of the ruler of your settlement, manage and develop it in real-time, recruit and upgrade units, take care of resources, and participate in epic battles.

Gather resources and strategically build up your Viking settlement by day, fortifying it to withstand the relentless onslaught of skeletons by night

There is only one rule in the Wild West, the rule of the gun. Lead a fistful of Yankee soldiers on a mission to bring order to this chaotic frontier, facing desperados, robber barons, and more in a spaghetti western RTS adventure like no other.

This is a building tower defense game with RPG elements to hunt down the demon guard altar.

Crossfire: Legion is a real time strategy game featuring tactical action in furious battles across a shattered version of the near future. Raise and customize your army to engage in intense online combat and carve your own path as you rise through the ranks. It’s a new generation of warfare.

Cosmic Stronghold is a mix of the genres RTS and Tower Defense. Your primary goal is to keep your space station alive for as long as possible, so that it can harvest the nearby mines for precious mineral ores. You will be faced with waves of enemies, getting stronger and stronger for each wave.

Join in on the next gold rush and become a prospector in space. In this unique tower defense you can set up and reposition towers for maximum efficiency and adapt to the environment.

Paddle Protectors is a mix of tower defense and real-time strategy (RTS). You will fight against crabs, bugs, and more. Establish farms and factories to produce ammunition and resources, fortify your land , build trenches and towers, lead your soldiers and tanks, and research new units.

Geometry Defense: Infinite is a classic infinite tower defense game where you must build a maze to slow enemies and build towers to destroy them. An action-packed and engaging game requiring focus to take on challenges and test your skill.

Defend galaxy against Alien invasion in the RTS offline game with roguelike fun

This is a tower defense game, where you will defeat the swarm of insects with artillery fire

Tower Factory is a tower defense and automation game with roguelite elements. Optimize resource production using conveyor systems while defending against monster waves. Can you find and destroy the enemy tower before it's too late?