Top similar games like Harvest: Massive Encounter:

Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.

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.

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

An epic, challenging tower defense game with an emphasis on strategy and replayability. Summon gems of immense magical potency and harness their unique abilities against a seemingly endless horde of monsters. The archdemon seeks to swallow the world, and you must journey to stand against her.

Fight off hordes of monstrous mutants created from a strange cataclysmic event in the new tower defense game, Prime World: Defenders. Join a group of exile treasure hunters who have ventured into the capital of an ancient empire, vast with mystery and danger.

Build up your fortifications, place your cannons, and fire at the enemy forces! Improve your Battle Haven with powerful upgrades while playing through a story campaign comprised of dozens of scenarios with unique mission types and multiple boss fights! Take to the sky and win!

An AI menace is headed to your motherboard! CAN YOU SURVIVE?! A short tower defense game, where you strategically place unique towers on a grid to stop relentless waves of enemies. Survive as long as possible, & climb leaderboards.

Hold the line in a neon sci-fi siege. Deploy and upgrade 15 distinct towers, expose every enemy's weakness, and survive 50 escalating waves and relentless boss assaults. Every threat has a counter — find it before your base falls.

You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.

Lead an armored squad through the perils of this reversed tower defense action-strategy game!

Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?

Hold a mining outpost on an alien world while thousands of insects pour through the rock tunnels like a flood. Place towers on the high ground, aim their firing arcs, and spend the biomass from every run, won or lost, on upgrades that let you hold a little longer next time.

"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...

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!

A sci-fi tower defense game where you bend the rules of combat. Deploy defense towers to exploit color-matching enemy vulnerabilities and construct game-changing outpost facilities between rounds. Play as a newly activated Child AI trying to survive both the invaders and a stressed Mother AI.

Sci-fi Tower Defense real-time strategy with pleasant adaptive music. Play as a commander of a space station which got stuck in a time anomaly.

Co-op and Single player Tower Defense genre.

A hybrid card game and tower defence where the hands you play become the towers you build. Defeat the enemies approaching the bear's den and find modifiers that support the elements of your defensive strategy.

Hardlight is a stylized, sci-fi tower defense game in which you must defend against dark, enigmatic invaders. Strategize your defense by lighting up the world so that you can detect and destroy waves of enemies.

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!

Armoured Onslaught is a fast paced Top-Down Shooter and Tower Defence hybrid. You will need to make use of both strategy and skill as you fight your way through near endless hordes of deadly foes.

Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.

This game is a brutally hardcore sci-fi tower defense, featuring BBS-era and ASCII graphics. You are a commander who must use everything at your disposal to stop the AI horde from opening the rift, and unleashing a cosmic horror upon the earth.

Rise of the Cones is a tower defense game where a relentless army of cones is marching toward your base. They will not stop. Build towers, shape them with branching upgrades, and figure out how to hold the line.

A Rogue-like Tower Defense game with 10 towers, 5 damage types, 20 abilities, and hundreds of upgrades. Select one or more upgrades to your towers and/or abilities at the end of each level that stay with you through your mission to protect the Xenocrystals. Limitless possibilities!

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...

A 2D pixel art tower defense game with unparalleled strategic depth. Deploy modules to redirect enemies, use tactical chips to command the battlefield, and upgrade towers with multi-branch modifications to protect humanity's vital Stellacore energy.

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!

Defend the Crucible from waves of enemies. Grow your economy to new heights, research and be always one step ahead. The Crucible must be completed!

A classic sci-fi tower defense game filled with waves of robots in full 3D. Get rewarded with automatic mini upgrades for well placed towers. As you make progress, unlock even more upgrades for your towers by building factories. Can you unlock the legendary golden tower?

Space Year 2899. As the new Operations Chief of Japan's Space Facility Defense Office, protect orbital colonies from debris, space lifeforms and drone fleets. Build and upgrade defenses on 10 orbits with different routes, and reshape your tactics with 130+ research projects.

Celestial Defense is a sci-fi space tower defense strategy game where tactical base building and resource management determine your survival. Build asteroid belts, evolve planets, and withstand relentless wave survival combat against the Void.

Be the ultimate CEO and military strategist in this genre fusion of strategy and business management. Create your own company, hire employees, research weapon technology, and take control of units on the battlefield to defend the moon against an alien invasion. Aliens down, profits up!

Build towers, unleash ultimates and command six heroes in sci-fi tower defense. Play all 100 Scenario stages free. Try one-minute highlights of Basic and GRID COMMAND before purchase, then take your aerial fleet into GRID COMMAND's survival battles.

On the night I saved the world, I died. A tower defense game in which the main character travels through the world after his death. Collect characters and items, organize your party, and find out the mysteries hidden in the world.

Slice them, burn them, skewer them, and launch them - no matter how you get it done, orcs must die in this fantasy action-strategy game from Robot Entertainment.