Top similar games like Paper Protocol:

Jump into the shoes of an interplanetary defender! Grab weapons, build towers, expand ground economics and protect planets from space invasions in this unique mix of twin-stick shooter, tower defense and city builder game.

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!

Roman Conquest: Rise to Power is a turn-based strategy game in which the player can feel like a great commander of the Roman Empire. Lead a legion and go with your army to recapture the occupied lands.

A grand and intense tower defense science fiction game, where you only need to purchase once to enjoy all the content of the game.

Upgrade and evolve, expand your territory, and build mighty defense towers to repel hordes of monsters.

Defend your base from bubbles by hiring monkeys.

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.

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.

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!

Defend entire planets against hostile invaders in this full 3D tower defense game. Manage resources and space while constructing weapons, defenses, and structures to withstand the destructive onslaught across multiple planets.

"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!"

Dive into our exciting Tower Defense game! Choose from three unique towers and utilize specialized skill trees and powerful abilities. Develop your strategy, defeat various enemies, and become the ultimate defense strategist!

Paddle Protectors is a mix of tower defense, real-time strategy and city-building. 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.

Dawnhelm Defense is a strategic tower defense game set in a medieval-fantasy world where players must defend the mighty fortress of Dawnhelm from relentless waves of enemy invaders. You will build and upgrade powerful towers and deploy magical abilities to stop hordes of enemies.

Tiny Tactics is a Tower Defense game with a heavy focus on mazing, with mechanics inspired by the Auto Chess genre.

About：The solar system was invaded by aliens of unknown origin. The earth has fallen. As the commander of the surviving space fleet, return to the solar system from outer space and save the earth.

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 Road to Gelendzhik Palace - don't let your enemies enter the domain!

Warlords Under Siege - Prologue is a mix of RTS and Roguelike genre, where you build a small city and defend it against continuous waves of enemies. Improve your assortment of weapons with each playthrough, unlocking new possibilities to beat the ever-increasing threat.

Dive into the Smash Cup universe! This genre-blending top-down shooter allows you to craft your own base, combining MOBA, tower defense and deck-building elements for a unique battle experience!

U.F.O. K.O. Tower Defense: Place lasers, missile launchers, sniper turrets, and use combat strategies such as airstrikes and the space ray to repel waves of alien invaders in this sci-fi tower defense game.

A dark witch imprisoned by the Church is forced to turn against her own kind, seeking the most chaotic power within the constraints of trust. This is not just a battle against enemies in action, but also requires a strategic and panoramic vision.

Become a fearless protector and control a versatile melee-construction unit to build your defense and safeguard humanity's future from endless vermin swarms!

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

A Tower Defense game, where geometric shapes face each other, and you, the Leader of the Order, must carefully plan your time and money to defeat enemies. With a minimalist design, this is the game for those looking to relax and at the same time train their agility and logical thinking.

Create your own distinctive towers, enhance only the necessary components, and experiment with them in quick battle mode. THWN enables you to craft each tower individually using runes that determine the projectile and its effects, giving you the freedom to adopt strategies that suit your play style.

You might think this is yet another Tower Defense game. Well, friend, you are not wrong! The twist? It's fast-paced! Your greatest resource is positioning - and moving around is a must. Also, you control an orange Squirrel equipped with more-than-military-grade turrets! OMG - can it get any better?

Warbound is a rogue-like, tower defense auto battler. Send armies of skeleton knights to battle, Battle fleets of advanced futuristic robots and engage in war across the eras in this strategic combat simulator. Upgrade your base, unlock new technology, Dominate the opposition and win.

An arcade arena top down shooter. fast paced action with a great sound-track. shoot your way through the approaching enemy shapes, upgrade your character and beat the high score.

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

Get ready to rethink all your defense strategies! Build barricades to stop monsters, or lure them into a maze and attack. A variety of stages that change each time depending on how you play them.

Use projectile-based towers, unique tower interactions, and overpowered weapons to strategically conquer the endless waves in this 3rd-person tower defense game!

TD Tactics is a combination of Tower Defense and Auto Battler genres. Use your cards to cast spells, combine and upgrade towers, and make use of different synergies to defeat your enemies.

Let's go on an adventure on our little island. We capture enemy islands and increase our island. We place different types of troops on the island and fight with a stronger enemy.

Tower defence game with realistic graphics portraying the epic battles of romans vs barbarians.