Top similar games like The Outsider TD:

Hallway Defender is a roguelite tower defense where you defend your base from an endless wave of fellow classmates. With over 25 different towers and even more upgrades and effects there are infinite ways to set up your own defenses.

The mission has been assigned! Your strategy skills are required to open the way and protect the truck to safe passage! Fight your way out of jungle, desert, mountains, rain and blazing wind to reach the last resistance of the evil dictator!

Island Invasion is an arcade-style tower defence game, where no two playthroughs are the same! Upgrade, path-block, and mine your way to victory, on randomly generated maps and against increasingly difficult enemies.

A simple one-of-a-kind tower defense game where you need to wash cars before they reach the end of the road. Create mazes. Upgrade your towers. Wash all sorts of cars, trucks, boats, and planes.

A sandbox strategy game where you control Reek and Havok; two devilish creatures that aim to destabilize a town through chaos and destruction.

The Poor Artifact Maker is a tower defense game based on Chinese fairy legends. The refiner has to explore the dangerous world in order to find his lost companion. The only way to overcome the endless ferocious beasts in the wilderness is to keep collecting materials to refine spiritual weapons

Build up your defenses, fortify your camp and fight back the demon horde that has come to take what little you have left.

War Room: Blitz is a single-player, turn-based strategy game based on the historical WWII German bombing campaign conducted against the United Kingdom. Test your management skills as well as your intuition, and defend your land & protect your people.

Defend the energy cores from ever increasing enemy waves by destroying their spawn gates. Build tower mazes on Hex grid. Adapt them to dynamic changes in the terrain. Face quirky bosses. Design your own levels and share them on the Steam Workshop.

Quacker Bros is a roguelike TD game about protecting your bounty from the intercepting chicken Mafia! Survive until the help comes and you can finally enjoy the blood and sweat of your heist!

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

PolyCore Defense is a tower defense game where you have to raise your defenses in order to defend your core. Build unique turrets, upgrade them with special effects and use abilities to survive waves of enemies that are trying to destroy your core!

A Tower Defense-Storytelling game about fighting against healthy foods!

Scrap Metal Heroes Rebuilt is a real-time strategy game where you can customize a set of 4 robots with over 300 parts and fight them against an AI opponent or other players.

H.I.V.E. is a roguelite autochess game where the player leads the Clone revolution. It's the year 2424 a technology corporation has created the H.I.V.E. clones to take care of sanitation tasks. But now these beings have gained awareness and are taking over the city. Lead the clones to victory.

Take on the role of an exterminator struggling with a small town invaded by repugnant bugs. Crush them, burn them, poison them, do whatever you have to do to eliminate them!

Defend The Keep, a fast-paced action strategy game with fireballs and towers! Defend your villages against waves of hogs, ogres and insects.

Become an Exorcist! Defend your city from evil demons by using cute towers designed as shrine maidens. Fight hordes of demons using powerful Alliances and strategize your way towards victory. Upgrade your defense after each map until you'll be able to face the root of all evil!

You control a magic tower floating in the sky, falling from the sky against enemies coming from all sides, choosing the right weapon mix for different enemies, using health and mana in a planned way, reducing their wear and gain more rewards.

🦀Crustacean Nations🦀 is a real-time strategy game about total crab warfare. Build a sprawling sand castle and amass huge armies to dominate the beach and become the one true crustacean nation!

Skeletons are attacking nearby castle, catch them through the portal and assign to mine ore in your tower! Use collected materials to defend the castle and Craft better equipment for your workers! Help villagers to unveil evil behind the skeletons ambush!

Take the role of a Defence Commander and protect UPF assets remotely through the use of your Adaptable Nano Tablet in this immersive, PC focused Tower Defence Game. It's designed to be a tough but rewarding experience with character progression and the ability to configure towers to your own liking.

Build and upgrade towers with unique abilities to stop waves of enemies. With the advanced augment system, every 3 rounds you can boost your defenses and create strategies that fit your playstyle.

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.

Get ready to defend your metallic planet from human and orc invaders in this intense, challenging and addictive action tower defense game! Play solo or in cooperation on one pc!

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.

Dive into intense, fantasy, tower defense action! Using turrets, spells, and your cunning, you must defend your kingdom against an onslaught of enemies launching a surprise attack while the king is away.

Lead the Fruit Army and defend your base from the evil vegetables in this Tower Defense game. Create your strategy with a variety of characters: adapt to different scenarios, manage your money to keep your defense line full of fruits.