Top similar games like The Echoes of Mars:

Super Sanctum TD is a retro-styled Tower Defense game that focuses on strategy, customization and replayability. Build advanced mazes and construct powerful towers to prevent alien hordes from reaching the Core!

Tower Defense meets a Visual Novel narrative. Place an arsenal of towers to halt the invading enemy. Use special abilities such as napalm strikes, EMP blasts, and orbital lasers. A sci-fi space drama, filled with dialogue choices.

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.

A 3d tower defense game set in space. Protect the last resource outposts from the ongoing Alien attacks! Can you hold out in these ever increasing difficult waves of enemies and protect the last of your resources and Energy?

Defend Billy and his crew on their way to the extraction zone! You have been authorized to use the defense system. Protect them from giant bugs, malfunctioning droids and more...

Creeper World 3 is what happens when cellular automata takes over a strategy simulation. Instead of discrete units that attack your base, a fluid-like substance spreads over the terraformable terrain. Your base, your weapons, your strategy... you must adapt them all.

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

Defend your tower for as long as you can from the aliens invading your space! Level up, earn money and new units, and strategically place them in the grid!

Escape From The Red Planet simplifies resource management, tower defence, and first-person mechanics into a singular arcade experience. On the latest mission to Mars, the Orion III crash-landed. With Martian attacks looming, Houston most definitely has a problem!

Neon Grid Defenders is a sci-fi roguelite tower defense game featuring a free and unique upgrade system, decision based path generation and a strong but static difficulty curve. Build your path, place your towers, hook them up with upgrades and melt your enemies!

A classic single-player RTS set in a Solar System ruled by megacorporations. Journey from Mars all the way to Planet 9 and uncover the secrets of the BlackChain.

Top down stealth based puzzle game about an alien stealing cows from a farm. Use futuristic gadgets and stay in the shadows to avoid detection. Get all golds in every level to appease the queen and bring honor to your colony!

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

Tactical control meets strategic execution in this real-time, action tower defense. Develop classes of customized units and leverage different vantage points to defend your stake and ensure your colony’s survival.

Craft the perfect defense upon shifting platforms, turning gears, and railways to save your llamas from alien abduction in this space western tower defense.

Robowars is back on Steam! Fight off troops of droids for freedom and honor in our classical tower defense game. Lead the forces of the Solar Union to protect the peaceful planet of Praymos from the aggressive Trade Confederation.

Orcs coming TD is a classic tower defense game where you have to keep an eye on your economy and defenses .

The ultimate mash-up of Real-time Strategy and Tower Defense!

A light tower defense game with unique planet exploration. Defend against aliens, collect resources, and build a new home. Exquisite graphics and challenges await!

"In 'Random Core Defense,' acquire and enhance cores using limited resources to withstand relentless enemy onslaughts. Defeat powerful bosses and test your strategy to survive until the very end!"

Project Myriad 2 is a tower defense strategy game. Build towers on a grid of hexagons floating in space. 35 levels with unique tiles and mechanics each providing a unique challenge. 3 difficulty levels including extreme mode which has never ending waves of enemies. Strive for your new high score!

"Astro Wings: Space War" is a retro style, exciting and authentic bullet hell, space shooting game.This game brings you the thrill, urgency and fantastic experience of an authentic arcade shooting game.

Beware Planet Earth! is a beguiling mix of classic tower defense and time management coming to PC via Steam for the first time. Save your cows from the Martian invasion by building an effective defense using towers, traps and objects, and also by firing your Zapper directly at the invading force of little green men!

Refactor is a hard-core tower defense game that combines modular building, route planning, and element composition.

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.

A fast paced garden defense game. Collect what you can before the pests take over!

Qubicks is where tower defense meets roguelike as you venture across procedurally generated levels where you strategically position towers, balancing immediate survival with long-term growth. Upgrade your towers and heroes to adapt to difficult waves and ensure victory against alien inhabitants.

DEFEND 99 is a rogue-lite tower defense game with deckbuilding and autochess elements. Place your turrets, roll for upgrades and balance your economy in the hope of defending your network of the elite from an array of digital attackers. Can you hold off all ninety nine waves?

Do you like Tower Defense games with Strategy elements? Well, look no further! We've got exactly what you're looking for! Get ready to defend your settlement from enemies using a huge arsenal of towers!

Get Off My Space! is a tower defense game where you rely on skillful tower placement and resource management to beat upcoming dangers of the galaxy. Combining strategy and micro-managing fire groups, you will overcome the hardest level objectives.

Journey to the Surface - Explore, Develop, Fight, Die… Repeat! Welcome to the frontline! Workers are as expendable as they are useful. Your job is to mine resources, upgrade equipment, defend your base and restore power to the Undercity.

The hungry Gooper swarm threatens intergalactic peace. Stop them! Build towers around planets and take control over their orbits. Spin them with all you’ve attached! Collect new towers, powers and upgrades to beat the onslaught of goopers and save the galaxy in this colorful Tower Defense Roguelite!

When alien beings decide to invade and conquer Earth, they don't expect such a powerful enemy: A very angry farmer, join him in the battle against dangerous and lethal aliens and win back the farm that is rightfully yours.

A tower defense strategy science fiction game, in the future era, when aliens invade the solar system, players need to build various turrets to resist alien attacks and guard the Milky Way and solar system.

You control a space station in the form of a cube that protects the planet from invaders.