Games Like Harvest: Massive Encounter

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.

Why similar: Tower Defense 76.5%, Strategy 15.5%, Sci-fi 4%, Indie 3.2%, Singleplayer 0.8%

Why You'll Like It: The game focuses on strategic expansion and fluid-based defense, requiring players to manage energy networks just like in Harvest.

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.

Why similar: Tower Defense 77.3%, Strategy 13.6%, Sci-fi 5%, Indie 3.2%, Singleplayer 0.9%

Why You'll Like It: A classic sci-fi tower defense game that emphasizes tactical placement and managing limited resources against waves of enemies.

They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?

Why similar: Tower Defense 67.9%, Strategy 29.9%, Indie 1.2%, Singleplayer 1.1%

Why You'll Like It: This game is the definitive evolution of the RTS-tower defense hybrid, requiring careful base expansion and massive defensive structures to survive against thousands of enemies.

An open-ended factory management game with RTS and tower defense elements.

Why similar: Tower Defense 74.1%, Strategy 22.4%, Indie 2.6%, Singleplayer 0.8%

Why You'll Like It: This title excels at integrating complex resource logistics and conveyor belt management into a deep tower defense experience.

The Riftbreaker is a solo or Co-op base-building, survival game with Action-RPG elements for up to 4 players. Hack & slash countless hordes of enemies. Build up your base, craft powerful weapons and research new inventions to survive.

Why similar: Tower Defense 78.2%, Strategy 19.7%, Singleplayer 2.1%

Why You'll Like It: It perfectly captures the feeling of building a base on a hostile alien planet while managing resources and defending against massive waves of creatures.

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

Why similar: Tower Defense 70.9%, Strategy 17.5%, Indie 5.6%, Sci-fi 5.2%, Singleplayer 0.7%

Why You'll Like It: This game blends tower defense with base building and research, forcing players to adapt their strategy as they explore the map.

Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.

Why similar: Tower Defense 67.4%, Strategy 18%, Sci-fi 7.6%, Indie 5.7%, Singleplayer 1.3%

Why You'll Like It: This unique hybrid combines traditional tower defense with top-down shooter mechanics, offering a fast-paced sci-fi experience.

Age of Darkness: Final Stand is a dark fantasy survival RTS where you must illuminate, build and defend humanity’s last bastion against hordes of Nightmares. Set in the remnants of a kingdom consumed by a deadly fog, you decide. Will you hide in the light? Or take back your world.

Why similar: Tower Defense 75.7%, Strategy 24.3%

Why You'll Like It: It features a massive scale of combat and base management that mirrors the epic, high-stakes defense found in Harvest.

Build and design your own fleets and stand opposed to the Particulate in this physics/strategy/RTS/fleet hybrid. Build partially destructible and self repairing ships that interact with enemies less controlled by some scripted logic and more driven by a real time massive physics particle simulation.

Why similar: Strategy 49.4%, Tower Defense 25.4%, Indie 15.9%, Sci-fi 8.4%, Singleplayer 0.9%

Why You'll Like It: This strategic space game focuses on managing energy and building defensive fleets to combat fluid-like enemy swarms.

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

Why similar: Tower Defense 51.1%, Strategy 33.7%, Indie 7.2%, Sci-fi 6.9%, Singleplayer 1.1%

Why You'll Like It: It offers a reverse tower defense perspective that requires tactical movement and resource management in a sci-fi setting.

Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.

Why similar: Tower Defense 56.7%, Strategy 29%, Sci-fi 6.6%, Indie 6.1%, Singleplayer 1.6%

Why You'll Like It: It pits the player against massive alien swarms in an RTS format that requires constant base expansion and defensive positioning.

Diplomacy is Not an Option is a strategy game set in a medieval fantasy world. Build your town and defenses, raise huge armies and fight against massive hordes of enemies. How long can you survive?

Why similar: Tower Defense 74.8%, Strategy 25.2%

Why You'll Like It: It emphasizes large-scale base building and defensive strategy against overwhelming odds, capturing the tension of a massive encounter.

Space Run is a «real-time spaceship construction strategy game». Space Run takes the well-known Tower Defense-style gameplay and twists it, challenging you to manage and protect a spaceship and its cargo against the hazards of deep space!

Why similar: Tower Defense 71.5%, Strategy 18.5%, Sci-fi 5.1%, Indie 4.4%, Singleplayer 0.5%

Why You'll Like It: It introduces a unique real-time space transport defense mechanic that requires constant adaptation and resource management.

Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics. Defend Earth's remaining colonies using an arsenal of deadly weapons to torch, slice, throw, and impale swarms of alien invaders.

Why similar: Tower Defense 48.9%, Strategy 42.5%, Sci-fi 6.6%, Indie 2%

Why You'll Like It: It combines tower defense with base-building elements, tasking players with protecting a colony from relentless alien forces.

Anomaly Defenders is the closing installment of the Anomaly series. The original incarnation of the Tower Offense sub-genre had players controlling humans fighting alien invaders. Now, the tables have turned. The human counterattack is underway and the alien homeworld is under threat.

Why similar: Tower Defense 66.1%, Strategy 24.4%, Indie 6.7%, Sci-fi 2.7%

Why You'll Like It: A traditional tower defense experience set in the Anomaly universe that focuses on building and upgrading defensive structures.

Experience the celebrated strategy gameplay of Eufloria HD. Conquer asteroids in space and use their resources to grow floral creatures that do your bidding. Expand your empire and fight against several teams of AI opponents that all vie for the same resources and can offer fierce opposition.

Why similar: Strategy 77%, Indie 21.3%, Singleplayer 1.7%

Why You'll Like It: A relaxing yet strategic RTS that involves managing resources and expanding your influence across space.

Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!

Why similar: Tower Defense 75.5%, Strategy 15.9%, Sci-fi 4.5%, Indie 4.2%

Why You'll Like It: This game offers unique orbital tower defense mechanics that force players to rotate their defenses in real-time.

Get ready for the ULTIMATE tower defense onslaught. Build, deploy, research and upgrade your defenses in this epic, old school RTS inspired sci-fi adventure.

Why similar: Tower Defense 65.6%, Strategy 21.1%, Sci-fi 11.2%, Singleplayer 2.1%

Why You'll Like It: A sci-fi survival-focused tower defense game that emphasizes tactical placement and resource management.

Protolife is an unique tower-based strategy game which gives you a direct control over the builder robot in a struggle against the hungry proto-life organism.

Why similar: Tower Defense 63.2%, Strategy 19.6%, Sci-fi 9.4%, Indie 6.4%, Singleplayer 1.4%

Why You'll Like It: This game features grid-based base building and tower defense mechanics that reward careful planning and expansion.

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.

Why similar: Tower Defense 78.3%, Strategy 13.3%, Sci-fi 4.8%, Indie 3.2%, Singleplayer 0.4%

Why You'll Like It: This title blends tower defense with first-person combat, providing a more visceral take on the sci-fi defense genre.

Want a tactical and strategic tower defense challenge that's packed with options and upgrades? Take command of the dropship Sentinel and do battle across a vibrant sci-fi world.

Why similar: Tower Defense 44.4%, Strategy 32.7%, Indie 12.2%, Sci-fi 10.7%

Why You'll Like It: A polished sci-fi tower defense game that focuses on tactical depth and managing various defensive turrets.

Command your own fortress in FTL-like real-time battles! Crush the enemy fortress with unrelenting bombardment or seize it with carefully executed invasion.

Why similar: Tower Defense 51.6%, Strategy 36.9%, Indie 10.1%, Singleplayer 1.4%

Why You'll Like It: This game focuses on strategic base-building and artillery combat, requiring precise management of resources during intense battles.

Rush for Glory is featuring challenging and rewarding Tower Defense battles, in which players are defending their base against an alien invasion. By strategically building towers and upgrading them, the player can keep his base safely and further progress through the extensive singleplayer campaign.

Why similar: Tower Defense 73.7%, Strategy 26.3%

Why You'll Like It: A classic tower defense experience with strong sci-fi aesthetics and varied defensive options.

Defend against thousands of enemies in this explosive tower defense game. Deploy upgradable towers and unleash powerful orbital abilities as you try to protect Earth's first colony world from destruction.

Why similar: Tower Defense 69.2%, Strategy 21.2%, Sci-fi 9.6%

Why You'll Like It: A sci-fi tower defense game designed to handle massive enemy counts, mirroring the scale of Harvest.

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!

Why similar: Tower Defense 71.6%, Strategy 15.4%, Sci-fi 7.1%, Indie 4.4%, Singleplayer 1.5%

Why You'll Like It: An isometric tower defense game that leans into classic sci-fi tropes and strategic turret placement.

Epic sci-fi tower defense action with 16-bit era look and feel, pitching your colonists against an almost endless horde of hostile alien robots who strongly oppose your attempts of colonizing their planet! Deluxe version includes the soundtrack!

Why similar: Tower Defense 56.5%, Strategy 32.1%, Indie 11.4%

Why You'll Like It: An action-oriented tower defense game that focuses on surviving waves of robotic enemies.

Defense Technica is the next evolution in hardcore tower defense strategy games. Protect the core from an onslaught of unrelenting biomechanical terrors with a powerful range of tower defense units – each with their own upgradable features and methods of attacks.

Why similar: Tower Defense 79.5%, Strategy 15.7%, Indie 4.9%

Why You'll Like It: It features tactical tower defense with dynamic pathing, requiring players to constantly adjust their strategy.

Spoids is a challenging throwback to the original brand of tower defense games. Command the Remote Defense Space Station and respond to distress calls of those who are being attacked by the invaders. Travel from planet to planet using your powerful arsenal to hold back the Spoids.

Why similar: Tower Defense 52.7%, Strategy 30.9%, Indie 11.5%, Sci-fi 4.9%

Why You'll Like It: An old-school tower defense game that emphasizes quick reactions and strategic placement against alien threats.

Space resources are the battleground for warring factions. As a Space Defense Officer, protect your faction's assets in a vast, hostile universe. Allocate resources, upgrade defenses, and repel relentless enemy attacks! With over 50 unique units and deep strategy, experience real-time tower defense!

Why similar: Tower Defense 62.7%, Strategy 20.1%, Sci-fi 10%, Indie 5.6%, Singleplayer 1.6%

The biggest installment of the award winning Sentinel sci-fi tower defense series now on PC!Take the fight to the alien homeworld and unleash a massive arsenal of weaponry. Get up close and personal on the battlefield in your power armor to execute devastating attacks and support your defenses! * An epic campaign across 20 levels.

Why similar: Tower Defense 76.4%, Strategy 16.1%, Indie 4.6%, Sci-fi 2.9%

From the makers of the award-winning Imperium Galactica 1 and 2 games, discover a powerful space-opera like RTS game.

Why similar: Strategy 75.5%, Indie 12.8%, Sci-fi 11.8%

Why You'll Like It: A space-based RTS that includes management elements and large-scale combat scenarios.

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.

Why similar: Tower Defense 78.4%, Strategy 16.7%, Indie 4%, Singleplayer 0.9%

Stunning detail of levels, in-depth gameplay, finely tuned balance of all levels and turrets. During the game you will hold your defense with your turrets against the massive hordes of enemies.

Why similar: Tower Defense 67.4%, Strategy 24.5%, Indie 8.1%

The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.

Why similar: Tower Defense 69.2%, Strategy 20.5%, Sci-fi 9%, Singleplayer 1.3%

Great strategy is timeless. Build, adapt, and defend across dynamic maps, solo or online - every session brings new strategies, new solutions, and new surprises. Now is the perfect time to enter the grid.

Why similar: Tower Defense 61.7%, Strategy 20.2%, Sci-fi 10.9%, Indie 5.5%, Singleplayer 1.8%

Defense Task Force Featuring Large Scale Procedurally Generated Tower Defense Battles with FPS Quality Visuals and Infinite Waves. 10 tower types, with different attacks , 3 levels plus boosts. 25 Enemy alien species: Regulars, Swarmers, Racers, Cloakers, Healers, Boss Units and Spawners.

Why similar: Tower Defense 61.8%, Strategy 22.9%, Indie 8.1%, Sci-fi 7.2%

Defend against waves of alien monsters in this unique roguelike action miner. Dig for resources, collect useful gadgets, and upgrade equipment to increase odds of survival – just hurry back before your dome is destroyed!

Why similar: Tower Defense 78.5%, Sci-fi 17.4%, Singleplayer 4%

Build and design the terrain while defending your stronghold against alien invasion in this unique Roguelike tower defense. Choose from 30 heroes, survive enemy waves, and upgrade a variety of destructive towers to hold the line!

Why similar: Tower Defense 71.9%, Strategy 20.9%, Sci-fi 5.8%, Singleplayer 1.4%

Darwinia blends real-time strategy, action, and puzzles with a unique gesture-based control system. Save the Darwinians, battle viruses, and restore order in a retro-inspired digital world. Winner of multiple prestigious awards, including the Seumas McNally Grand Prize at IGF 2006.

Why similar: Strategy 48.2%, Indie 25.3%, Sci-fi 22.6%, Singleplayer 3.9%

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!

Why similar: Tower Defense 67.9%, Strategy 19.8%, Sci-fi 10.3%, Singleplayer 2%

M.A.C.E. Tower Defense is a classic tower defense game with unique towers and enemies and an ingame shop system for getting better towers, upgrade existing towers and buy special items.

Why similar: Tower Defense 52.8%, Strategy 30.8%, Indie 10.8%, Sci-fi 5.7%

Mechs V Kaijus is an addictive hardcore tower defense gameplay. In Mechs V Kaijus you take on the role of Commander of a powerful Mechs squadron. Improve your Mech, strategically place towers and factories on the battlefield. Deploy support units on the battlefield, and save our civilization.

Why similar: Tower Defense 82.5%, Strategy 12.1%, Indie 4.9%, Singleplayer 0.5%

Ancient Planet is classic tower defense game. The stronghold of an ancient civilization has been invaded by hordes of alien raiders. Use powerful technologies of the Ancient and repel the attack of the enemy's armies!

Why similar: Tower Defense 79%, Strategy 15.8%, Indie 5.2%

Artificial Defense is a one man made, real time strategy game combining orbital shooter and tower defense components within an electrifying, virtual reality setting. You are the machine, a mighty computer-system defending its servers against swarms of intruding creeps.

Why similar: Tower Defense 43.8%, Strategy 40.6%, Indie 15.6%

Lead the Mobile Infantry in this RTS game set in the Starship Troopers film universe. Balance your army composition with a diverse set of unit types, overcome line-of-sight and line-of-fire challenges through tactical positioning, and use special abilities to smash the Arachnid hordes!

Why similar: Strategy 58.4%, Tower Defense 25.1%, Sci-fi 13.1%, Singleplayer 3.4%

Evil Defenders is a fun, frenetic defense game: build and upgrade your towers, сast spells to repel enemy forces, use special landmarks and defend the Lands of Evil from invaders! Feel free to play the game in many different ways through unique tower upgrades, a deep skill tree and 100 in-game achievements.

Why similar: Tower Defense 74.4%, Strategy 19.7%, Indie 5.9%

Project Astra Dominium is a Tower Defense game with Basebuilding and Automation elements. Build up your base to become a supply hub for Earth's desperately needed materials, gather resources while defending against an unknown alien threat and improve your tower's and AI capabilities.

Why similar: Tower Defense 63.8%, Strategy 18.1%, Sci-fi 8.4%, Indie 7.9%, Singleplayer 1.8%

Dungeon Warfare is a challenging tower defense strategy game where you become a dungeon lord to defend your dungeons with deadliest of traps and insidious contraptions against greedy adventurers and wanna-be heroes.

Why similar: Tower Defense 68.6%, Strategy 21.5%, Indie 7.9%, Singleplayer 1.9%

Phantom Signal is a real-time sci-fi strategy game with unusual mechanics. Explore mysterious star systems and reveal the secret of the phantom signal.

Why similar: Tower Defense 53.3%, Strategy 32.4%, Sci-fi 8.6%, Indie 4.7%, Singleplayer 0.9%

Stellarcraft is a sci-fi tower defense adventure: explore alien planets, gather resources, build defenses, and fend off waves of enemies, solo or in 4-player co-op. 🚀

Why similar: Strategy 54.8%, Tower Defense 21.6%, Sci-fi 21%, Indie 2.6%

Build your defense base to fight back the undead hordes of Mars and secure the future of the red planet. MarZ is a game of strategy and tactical defense where you must carefully manage your crew and resources as you try to uncover the terrible secrets of the undead.

Why similar: Tower Defense 64.5%, Strategy 22.9%, Indie 6.1%, Sci-fi 5.9%, Singleplayer 0.7%

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?

Why similar: Tower Defense 67.4%, Strategy 20.5%, Sci-fi 6.2%, Indie 4.9%, Singleplayer 1%

iBomber Defense combines classic tower defense gameplay with intense action and strategy. Keep enemies at bay all over the world using a variety of weapons and tactics, from rattling Machine guns, explosive cannons and awesome anti-aircraft artillery!

Why similar: Tower Defense 69.5%, Strategy 23.3%, Indie 7.2%

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

Why similar: Tower Defense 67.9%, Strategy 22.2%, Sci-fi 8.5%, Singleplayer 1.4%

Cosmic Trip is an award-winning real-time strategy VR game. Build a base, command a flying drone army, and attack/defend hostile enemies on strange alien planets.

Why similar: Tower Defense 67.3%, Strategy 21.3%, Sci-fi 9.1%, Singleplayer 2.4%

MILLIONS OF ALIENS WILL DIE!Radiant Defense is a tower defense game set in a vibrant universe invaded by countless alien hordes.Build your space fortress any way you wish, set up wide variety of weapons and traps and let the invasions begin!

Why similar: Tower Defense 64.9%, Strategy 22.9%, Indie 7.9%, Sci-fi 4.2%

Stellar Initiative is a roguelike tower defense game where you land on the planet and use your orbit ship to deliver buildings and support you with fire. Complete missions, install new upgrades, discover powerful artifacts, and find the best strategy!

Why similar: Tower Defense 68.4%, Strategy 20.5%, Sci-fi 10.3%, Singleplayer 0.8%

Collect resources and establish a defense line before dark And then Facing countless enemies

Why similar: Tower Defense 72%, Strategy 22.1%, Indie 4.5%, Singleplayer 1.4%

Deceptively simple... amazingly deep. Creeper World 2 thrusts you into the 14th millennium fighting and enemy that flows and oozes through the terrain. Employ advanced weapons,gravity manipulating repulsors, wormhole like rifts, and your own wit against this never yielding enemy.

Why similar: Strategy 47.4%, Tower Defense 37%, Indie 15.6%