Top similar games like Outpost: Infinity Siege:

A Co-Op FPS game with base building in a post-apocalyptic world. Craft weapons, build barricades and automated turrets, unlock new gear and items for visual customization and kill all savages and mutants trying to destroy the remnants of human civilization.

Explore war-torn post-apocalyptic landscapes and take fight against enemies using various weapons in this FPS/RTS hybrid.

Meet Your Maker is a building game of brutal expression and conquest. Unleash your inner evil genius in co-op or single-player to build the ultimate fortress of devious deathtraps, or take on those built by others in a high-stakes heist to steal resources essential for your survival.

Out of Ammo is an intense VR Tower Defense / FPS hybrid strategy game that will have you constructing defenses, calling in artillery, issuing orders, and taking direct control of your soldiers in order to survive a relentless enemy onslaught.

The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.

Have you ever been in a robbery and didn't have weapons to defend yourself and your house? Well now you can, with hold your houses you have a variety of weapons to use to help you defend yourself, your house and take on those unwanted robbers.

Executive Assault is an indie real-time strategy/first-person shooter where you can not only build your base and create armies, but also take control of your units and fight as one of them.

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?

Guardians Frontline is a sci-fi VR shooter that makes you a soldier and a commander. Fight off enemies and build bases in a single-player and co-op campaign, plus PvP game modes with full cross-play support.

Classic RTS gameplay fused with a modern roguelike. Shape your build each run by assembling an evolving arsenal of powerful units and facilities. Harvest resources, build out your base. Raise your army and call down powerful strikes to overcome the forces threatening your survival.

EXIMIUS is a FPS/RTS hybrid that focuses on squad-based combat. The game features an intense 5v5 multiplayer experience with each team comprising of 4 Squad Officers and one Commander.

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.

A new chapter for an Alternate Universe begins as our heroes have went missing after the destruction of our universe...

“Alien Marauder” is a real-time strategy game with survival and confrontation theme. In this game, you will be the leader to a treacherous alien planet, build and defend base to survive against the vexan waves. Make the right decision!

On planets occupied by robots, mine resources and escape while fending off their attacks! The Ark's survival is entirely in your hands. Many elite crews with abilities will assist you in your mission. The various turret modules are always doing their best to defend your base without your attention.

Includes 47 Steam achievements, leaderboards, and stats!

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!

Micro Wars is a fast-paced real time strategy game that throws you into the action in short, intense online battles featuring up to 8 players. Tailor your strategy with a variety of commanders, build your base, mine some minerals, and micro your way to victory!

Sphere Invasion is Sci-Fi Tower Defence. Build your own road and defend it with 7 unique towers.

Gather up a gang of your friends, build a base, add a factory, add some turrets, add teleporters, doors, foxholes and decorations. Arm yourselves to the teeth and go forth to raze, loot and t-bag all who stand against you. Be the Last Gang Standing

Bunker Defense is a tower defense game for 1-4 players. Waves of enemies attack your base, and you must defend it by building different kinds of defenses.

The FPS with the most advanced gun building system ever made. Master the art of stacking as you battle robots, design a base, experiment with procedural superpowers, and save entire planets from annihilation.

12 player co-op demon horde blasting chaos.

Build a factory in an infinite simulated voxel world. Mine resources, craft machinery and automate your research to progress. Face logistic challenges by planning and building a conveyor belt and pipe network. Manage a complex power system and expand your constantly growing production lines.

Shooter for Dummies puts players in the perspective of a dummy. Play the most iconic FPS PvP maps: CTF, Team Deathmatch, Kill confirmed... where the winning is not the common goal: The dummy with less receiving damage wins! But don't worry dummies, you can punch players almost off the map!

Terminal squad: swarmites is a game with indirect control where you must erect a chain of buildings, which generate resources for construction or the combat units for destruction of an enemy.

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.

GALAHAD 3093 is a tactical hero shooter where Knights of Arthurian legend clash in giant mechanized Lances. Go fast or go strong, but always bring the heat as you boost, skim and battle across 12v12 vertical sci-fi arenas. Discover your ultimate Lance, or just drop-in and play.

Battle Cry of Freedom brings brutal real-time first and third-person combat set in the 19th Century America, presenting players with the opportunity to re-fight the American Civil War as either the Union or the Confederates.

Scrum Down: Epic Battles, Unique Classes, and Monthly Mayhem! With Assault, Engineer, Support, and Recon, evolve powerful weapons monthly. In Story Mode, discover new worlds with each phase. Constant updates bring the thrill that keeps the war's flame burning! Get ready for the unimaginable!

The original, uncompleted version of Vectorio. Claim resources, unlock new buildings, and expand your defenses as you fight back against enemy forces in the classic edition of Vectorio! Play for free now.