Top similar games like Operation Defensive!:

Spectral Realm is a top-down tower defense Rogue game, where players need to play the role of an astronaut who has just landed on a different planet to block a constant stream of attacking native creatures and continuously strengthen themselves with the gems contained within their bodies.

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.

Play as the King of Cards or the King of Chess in this fresh take on the tower defense genre. You can play as the enemy trying to sneak past the towers or play as the towers themselves. There are many upgrades for each side and lots of content to unlock!

A tactical auto-shooter where you build your own maze! Combine tower defense, roguelite powers, and upgrades to survive endless waves of monsters.

Last warrior of the Herbheim's clan, it's your duty to defend the last family mine

《Loopstructor:Prologue》 is a strategy game that combines tower defence with Roguelike.Unlike traditional tower defense game, the towers in the game are vehicles that move along ‘loops’.You need to create defence loop and build battle trains to defend against enemy attacks.

This is a strategy tower defense game where players need to choose the appropriate defense towers based on different maps and enemies. The game also offers a variety of defense towers, maps, and an endless mode waiting to be unlocked by the players!

Be the villain in this Reverse Tower Defense. Send waves after waves of troops to break the enemy defenses. Summon, upgrade your troops and conquer the whole world.

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.

SMaC! is an anomaly-spotting game where you work as a shotgun-wielding maid. Identify fake customers by their behavior and blow them away, while keeping the real ones happy with their orders.

A classic 3D Tower Defense fantasy game, made by a very small and dedicated team.

Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 5, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses.

Prepare for an epic battle in this captivating tower defense game! Build, defend, and triumph as you strategically place towers, manage resources, and upgrade your arsenal to fend off relentless waves of enemies.

An amazing mix of RPG, strategy, simulation, sandbox and survival game. Aurora Dusk looks like many other games, but instead of being alone, you live in a community. You can play one or more villagers and evolve from the Wood Age to the Steam Age.

Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic.

In this single player fantasy tower defense game, following the main character Canaly after mysterious events happen across a world she's investigating, she stumbles upon an artifact that allows her to summon strange defense mechanisms that may help her complete this journey.   

Summon troops and use magic to defeat mage lords and other foes while surviving attacks from their followers. Learn new spells and recruit troops with unique powers. Venture across the land, battling ever stronger enemies until reaching the evil Mage King.

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.

Summon hordes of minions to defend your realm against invading heroes in this fast-paced fantasy strategy game. Unlock permanent upgrades, new levels and more advanced minions to survive the ever-growing threat.

Junkyard War is a unique take on the tower defense genre. Clear trash from the junkyard and recycle it into valuable resources while holding off waves of your competitor's army trying to make the trash disappear by burning it all down!

A game that combines the fun of custom spellcrafting with the monotony of a tower defense! Protect your hut with a vast arsenal of spells that you put into varyingly effective combinations.

Melt sand, shatter glass, and rust iron in this epic elemental tower defense game. Combine elemental effects to beat powerful materials. Use cunning strategy and wit to take on impossible challenges. Unlock new abilities and power as you embark on this difficult journey.

The most addicting tower defense game, packed with monsters and tough defenders, all of which fit perfectly into the cartoonish environment. Prehistory is a prologue for the main story Age of Defense.

Cut the trees, catch some fish, upgrade your castle and environment. Guard the treasure against waves of enemies and lead your dwarves on their way to victory!

In Sunstone War: Prologue, you can lift any interactive object, including defense towers, obstacles, and even enemies. Experience frantic fun and a level of freedom never seen before in this Tower Defense game, where you no longer have to wait idly for the enemy's attack!

Match-3 Tower Defense. Defend real Scottish castles from waves of dragons. Real Scottish stories and legends. Includes a full map of Scotland to scale where 1 tile is 19.5 meters.

Tyrania is a kinetic visual novel, meaning a text-based game with a one ending linear story. The story is focused on the opposition of two different ideas of Justice when dealing with crime and terrorism.

Rise of Legions has shut down. It was a strategy and deck building game with dynamic, tactical gameplay.

Defend your ancestral castle – show the invader who the master is! Build towers, save money, train your spells, and your enemy will be vanquished.

A wave-based action game, where you fight to survive for as long as you can.

Build whimsical defenses, wield powerful relics, and command magical snow guardians to survive the infernal chaos. Can you hold the line through endless nights and defeat the Frost fallen King?