Games Like Outpost: Infinity Siege

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: Base Building 24.5%, Tower Defense 23.4%, RTS 15.6%, Crafting 10.8%, Survival 10.3%

Why You'll Like It: Combines base building, survival, and action-RPG combat in a sci-fi setting that mirrors the resource-gathering loop of the seed game.

SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.

Why similar: Tower Defense 31.5%, FPS 19.2%, Survival 12.5%, Sci-fi 11.9%, Strategy 7.9%

Why You'll Like It: A direct hybrid of FPS and tower defense that tasks you with defending a spaceship from alien boarders using traps and weaponry.

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.

Why similar: RTS 22.9%, Robots 18.2%, Base Building 18%, FPS 11.7%, Co-op 7.9%

Why You'll Like It: Allows players to switch between an RTS commander view and a first-person shooter perspective to manage and defend their base.

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

Why similar: Automation 22%, Tower Defense 19%, Base Building 17.3%, RTS 14.9%, Resource Management 12.5%

Why You'll Like It: Integrates tower defense with deep automation and resource management, perfect for those who enjoy the logistical side of base building.

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 43.8%, FPS 19.3%, Co-op 15.6%, Sci-fi 6.2%, Strategy 5.7%

Why You'll Like It: A classic pioneer of the FPS-tower defense hybrid genre that requires strategic trap placement alongside active combat.

Slice, burn, toss, zap, grind and gib massive hordes of repugnant orcs in this long-awaited successor to the award-winning Orcs Must Die! series.

Why similar: Tower Defense 53.5%, Co-op 27.4%, Strategy 9%, 3D 5.6%, Action 3%

Why You'll Like It: Focuses heavily on the action-tower defense loop, requiring players to actively participate in combat while managing complex trap layouts.

Command massive armies in this epic mech auto-battler. Draft your troops, customize your units, master your formations, and crush enemies in spectacular 3D battles. All strategy, no clickfest. Outsmart opponents in 1v1, 2v2, free-for-all, or Survival Mode.

Why similar: Robots 43.4%, RTS 23.6%, Co-op 14.7%, Strategy 8.7%, 3D 5%

Why You'll Like It: A tactical auto-battler that emphasizes robot warfare and strategic unit placement, capturing the mechanical aesthetic of the seed game.

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 45.5%, Co-op 16.6%, Sci-fi 11.9%, Shooter 10.5%, Strategy 9.4%

Why You'll Like It: Blends top-down shooter action with tower defense mechanics, forcing players to adapt their base layout in real-time.

7 Days to Die is an open-world game that is a unique combination of first-person shooter, survival horror, tower defense, and role-playing games. Play the definitive zombie survival sandbox RPG that came first. Navezgane awaits!

Why similar: Base Building 18.5%, Tower Defense 17.9%, Post-apocalyptic 16.7%, Survival 16.2%, Open World 11.9%

Why You'll Like It: Offers a robust mix of FPS combat and base building, specifically centered around surviving massive waves of enemies.

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 31%, Robots 16.2%, Base Building 15.8%, RTS 11.2%, Automation 8.5%

Why You'll Like It: A tower defense game where you control a powerful weaponized platform to defend against waves of robotic invaders.

Desynced is a sci-fi strategy game with fully customizable units and behaviors. Gather, build, research, and explore the unknown. Alone or with friends, unveil the mystery of an AI on the edge of self-awareness and uncover the hidden truth in this blend of strategy, automation, and exploration.

Why similar: Automation 21.9%, Base Building 17.2%, RTS 16.5%, Resource Management 11.3%, Survival 8.4%

Why You'll Like It: A strategy game that uses automation and programming to manage base defense and resource logistics in a sci-fi environment.

The Front is a survival open-world crafting sandbox game. You are a resistance fighter sent back in time to stop the rise of a tyrannical empire. Collect resources, craft tech, build shelters, and fight monsters to accomplish your mission.

Why similar: Tower Defense 21.6%, Base Building 19.7%, Crafting 13.7%, Survival 11.8%, Co-op 11.7%

Why You'll Like It: An open-world survival game that leans heavily into base building and defensive fortifications against hostile forces.

Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.

Why similar: Base Building 29.4%, Co-op 21%, Open World 17.1%, Survival 16.3%, Strategy 8.9%

Why You'll Like It: Provides unparalleled freedom in building complex, functional bases and ships that can be used for survival and defense.

Build a sophisticated robot factory optimized to perfection in an infinite voxel world. Mine and harvest resources, automate your production lines and manage complex systems while researching your way to become the galaxy’s leading robotics megacorp.

Why similar: Robots 21.9%, Automation 16.8%, Base Building 13.5%, Resource Management 10.2%, Co-op 9.3%

Why You'll Like It: A first-person factory-building game that emphasizes large-scale construction and resource management in a voxel world.

Deep Rock Galactic is a 1-4 player co-op FPS featuring dwarven space miners, procedurally-generated destructible environments, and endless hordes of alien monsters. Explore cave systems, mine for minerals, and work together to survive!

Why similar: Looter Shooter 27.4% ★, Co-op 22.7%, FPS 18.6%, Shooter 10.4%, Sci-fi 9.6%

Why You'll Like It: Features intense co-op FPS combat with objective-based defense elements that require teamwork and resource management.

FortressCraft Evolved is a unique blend of Voxel Landscapes, Tower Defense, Crafting, Logistics, Exploration, Combat and Assembly lines. Players begin by crash-landing on a strange alien world, left with only a small handful of starting machines.

Why similar: Automation 31.6%, Base Building 15.8%, Crafting 15.6%, Survival 10.5%, Open World 8.3%

Why You'll Like It: Focuses on massive-scale automation and tower defense, requiring players to build complex systems to protect their base.

Machine Mind is an action game in a post-apocalyptic setting with elements of survival and RTS. You will fight, craft modules, build your transport, develop and protect your base. You can control other vehicles to automate operations. Discover all the secrets of the destroyed world!

Why similar: Tower Defense 21.1%, Base Building 18%, Post-apocalyptic 13.4%, Resource Management 13%, Crafting 11.2%

Why You'll Like It: An isometric game that blends base building and tower defense with RPG elements for a unique tactical experience.

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.

Why similar: RTS 23%, Robots 20%, FPS 13.6%, Base Building 12.5%, Strategy 8%

Why You'll Like It: The predecessor to the sequel, offering the same core RTS-FPS hybrid mechanics in a space-themed setting.

A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!

Why similar: FPS 29.2%, RTS 25.6%, Sci-fi 13.1%, Strategy 12.1%, Co-op 8.9%

Why You'll Like It: A unique multiplayer experience that pits an RTS commander against an FPS team, perfectly capturing the hybrid genre feel.

Axon TD lets you expand the map boundaries themselves. A huge arsenal of towers and a wide variety of enemies clash in a battlefield that grows to your whims. Engage in single, cooperative, and roguelite gameplay.

Why similar: Tower Defense 28.7%, Robots 20.5%, RTS 19.9%, Co-op 10.1%, Sci-fi 9.4%

Why You'll Like It: A modern tower defense game with deep strategy and roguelite elements that challenge your defensive planning.

Farm, Build, Defend, in the Galaxy's only Arcade-Tower-Defense.

Why similar: Robots 26.3%, Tower Defense 20%, Base Building 16%, RTS 12.8%, Shooter 5.4%

Why You'll Like It: A quirky tower defense game that involves managing robots and base defenses in a vibrant, sci-fi environment.

Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!

Why similar: Automation 25.4%, Base Building 22%, Resource Management 11.4%, Crafting 11.1%, Co-op 10.7%

Why You'll Like It: While less combat-focused, it offers the most satisfying base-building and automation experience for players who enjoy the logistical side of Outpost.

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 29.8%, Automation 22%, Post-apocalyptic 11.5%, Sci-fi 10.5%, Survival 8.8%

Why You'll Like It: A 3D tower defense game that emphasizes strategic pathing and defensive structure placement.

Choose any real region from the world. Choose your base of operations, then rebuild and readapt the buildings around you to create a self-sustaining settlement. Take charge of a group of survivors from your city. And when the night falls - Defend the zone from the infected!

Why similar: Base Building 30.9%, Post-apocalyptic 27%, RTS 18.8%, Survival 10.3%, Strategy 7.8%

Why You'll Like It: A base-building game that tasks you with fortifying real-world locations against waves of infected survivors.

Jump into a realtime strategy, action filled battlefield, deploy relentless soldiers, unlock powerful troops and vehicles, upgrade your army, decimate the enemy. If that's not enough, jump into a chaotic Zombie mode, with traps, fun upgrades, and a new gameplay!

Why similar: Tower Defense 37%, Military 24.4%, Base Building 21.6%, Strategy 9%, 3D 4.8%

Why You'll Like It: A strategy-focused tower defense game that incorporates auto-battler elements for managing defensive units.

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 28.2%, Robots 26.3%, Base Building 20.2%, Sci-fi 9.1%, 3D 6.8%

Why You'll Like It: A pure tower defense experience that focuses on massive-scale battles against thousands of enemies.

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.

Why similar: Tower Defense 19.8%, Base Building 15.4%, Military 15%, FPS 12.4%, Co-op 10.9%

Why You'll Like It: A VR-focused strategy game that puts you in command of defensive units and structures in a real-time combat scenario.

Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.

Why similar: Automation 31.1%, Base Building 22.5%, Resource Management 15.4%, Crafting 9.7%, Survival 5.9%

Why You'll Like It: The definitive automation game where base defense against alien swarms is a core component of the gameplay loop.

Take the helm as a new Station Commander and exploit an alien star system in this stunning space-station factory automation game. Amass resources and construct starships using increasingly advanced manufacturing and expand your station in a hostile universe.

Why similar: Automation 23.4%, Base Building 17.9%, RTS 13.3%, Co-op 11.6%, Crafting 9.6%

StarRupture is a first-person open world base-building game with advanced combat and tons of exploration. Play alone or in a group on this sublime and ever-changing planet, extract and manage resources, create your complex industrial system and fight off hordes of alien monsters.

Why similar: Automation 21.7%, Base Building 17.7%, Co-op 12.1%, Crafting 10.8%, Open World 9.8%

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 26.1%, Base Building 18.2%, RTS 17.3%, Resource Management 11.8%, Military 10.9%

A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!

Why similar: Tower Defense 21%, RTS 17.4%, Base Building 16.7%, Crafting 9.9%, Survival 9.2%

Do you have what it takes to defend what is yours? This is not a typical tower defense game where the troops do all the work. This is a hybrid FPS/TPS tower defense game which you take over the control to defend your island.

Why similar: Tower Defense 19.5%, Robots 18.8%, Base Building 11.7%, FPS 8.1%, Crafting 8.1%

Why You'll Like It: An action-oriented strategy game that focuses on tank combat and defensive positioning.

Control a fully armed Mech and fight through cyberpunk cities, military bases and industrial ruins. Capture and defend territories, build turrets and structures, and wage war against powerful enemies!

Why similar: Tower Defense 21.6%, RTS 18.3%, Robots 17.3%, Post-apocalyptic 13.5%, Base Building 13.4%

Why You'll Like It: A top-down shooter that integrates tower defense mechanics to protect your base from mechanical threats.

The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.

Why similar: Base Building 25.3%, Tower Defense 23.2%, Survival 12.9%, Crafting 12.3%, RTS 11.7%

Action-focused, open world survival shooter, PvPvE against fellow mercenaries and lethal XOIDS. Raid for resources alone or with team-mates, build and defend your base, stash your gear and survive against the odds. You are the hunters. You are the hunted. And the robots never sleep…

Why similar: Robots 19.5%, Base Building 15.6%, Looter Shooter 15.4% ★, Post-apocalyptic 11.3%, Crafting 9.2%

Last Outpost is a minimalist Base Building & Strategy game where you build and defend your outpost in zombie apocalypse. Choose your vehicle and loadout before embarking on your adventure. Use your abilities and control your units to eliminate all threats. Will you manage to defend your outpost?

Why similar: Tower Defense 34.3%, RTS 26%, Base Building 23.7%, Strategy 8%, 3D 6.5%

Outpost brings the perfect mix between survival and roguelite gameplay. Start the game in a randomly generated environment and try to adapt, and make it through as many nights as possible. How long can you survive?

Why similar: Tower Defense 29.9%, Base Building 19.3%, Survival 13.1%, Open World 11.9%, Crafting 10.3%

this is a tower defence game,we need upgrade our weapons to fight waves of enemies,robots can mining diamonds,and we need spent those in many aspect，features of this game: 1 return back before dager comes,2tempory upgrade are important but permanent upgrade are better

Why similar: Tower Defense 58.9%, Base Building 23.1%, Resource Management 16.1%, Singleplayer 1.9%

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 28.5%, Strategy 19.1%, RTS 17.3%, Co-op 12%, Base Building 9.6%

Cluckmech Oasis, a top-down shooting Roguelike tower defense game. Play as the Warcluck and lead your team of animal heroes in a fight for survival. Collect, build and upgrade defenses, and engage in intense battle against waves of plant enemies.

Why similar: Tower Defense 48.6%, Shooter 15.2%, Strategy 13%, Survival 10.5%, Sci-fi 7%

Choose a planet, build your fortress, and prepare for war. Arm yourself with powerful weapons, deploy troops, and defend your stronghold against relentless attacks. In this action-packed block-builder, survival is earned, and only the strongest will remain.

Why similar: Base Building 27.7%, Tower Defense 27.4%, FPS 19.2%, Shooter 9.5%, 3D 5.1%

Outpost Zero blends the genres of Multiplayer Base Building Survival and Simulation games in a Sci-Fi universe. On a lawless alien world, robotic scouts are tasked with building an Outpost for human colonists. Command AI minions, colonize the planet, and survive the perils of Gaiya.

Why similar: Base Building 28%, Survival 24.6%, Open World 18.3%, Crafting 15.3%, Sci-fi 6.9%

Starship Troopers: Extermination is a 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!

Why similar: Base Building 23.3%, FPS 20.2%, Co-op 18.4%, Sci-fi 13.6%, Shooter 11.4%

Mob factory is an tower defense and automation game for the lazy adventurer. Smelt down enemy loot into turrets & factories to automate an ever expanding dungeon from the comfort of your tower.

Why similar: Automation 23.4%, Tower Defense 19.8%, Base Building 14.9%, Resource Management 12.6%, RTS 8.5%

Tower Factory is a tower defense and automation game with roguelite elements. Optimize resource production using conveyor systems while defending against monster waves. Can you find and destroy the enemy tower before it's too late?

Why similar: Automation 21.8%, Tower Defense 20%, RTS 16.7%, Base Building 14.5%, Resource Management 11.4%

Granvir is a 3rd person action roguelite mech-builder with co-op multiplayer. Scavenge the battlefield for parts to replace and upgrade your Granvir and weaponry. PIlot your Granvir and manage your campaign between battles to find the best equipment and stay supplied while fighting a guerilla war.

Why similar: Robots 32%, Looter Shooter 27.8% ★, Military 18.7%, Sci-fi 7.5%, Shooter 6.4%

A highly addictive survival crafting tower defense game! Gather, craft, build turrets, shoot guns, and expand the land to defend against waves of enemies in World Crafter TD!

Why similar: Tower Defense 20.4%, Automation 19.2%, Base Building 15.8%, Resource Management 12.8%, Crafting 11.3%

A Tower Defense hybrid where survival depends on strategy and firepower. Build turrets, mine resources, and hold the line against relentless AI swarms. Switch instantly between commanding the battlefield in RTS view or fighting on the ground in FPS combat.

Why similar: Tower Defense 25.1%, RTS 21.1%, Military 20.5%, FPS 15.7%, Shooter 9.3%

A first-person survival game set on a post-apocalyptic, ecologically ruined Earth. Play solo or with up to 3 friends as you build, upgrade, and fly a high-tech airship. Scavenge resources, craft tools, and face dangers on the surface as you hunt for a cure to save humanity.

Why similar: Base Building 17.3%, Co-op 13.1%, Post-apocalyptic 13%, Crafting 11.4%, Resource Management 10.3%

A base-building open-world survival shooter that replaces your typical base with a giant drill. Alone or with friends, explore an island plagued by eruptions, upgrade your drill, and fight robots to uncover what's been hiding beneath the surface.

Why similar: Base Building 20.8%, FPS 14.6%, Crafting 14.5%, Co-op 14.5%, Open World 10.9%

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: Automation 22.2%, Tower Defense 21.5%, Base Building 16.9%, Crafting 11.9%, Resource Management 10.9%

Deadzone: Rogue is a roguelite FPS set in space. Blast through swarms of hostile machines, combine powerful augments and elements to forge your build, and grow stronger with each run — solo or in co-op.

Why similar: Looter Shooter 33.7% ★, FPS 19.3%, Post-apocalyptic 18.6%, Sci-fi 9.8%, Shooter 9.7%

Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.

Why similar: Automation 32.6%, Base Building 24.4%, Resource Management 14.5%, Open World 10.5%, Sci-fi 8.2%

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.

Why similar: Tower Defense 21.1%, Base Building 17.4%, FPS 14.2%, Post-apocalyptic 13.5%, Military 13.2%

Retreating ends here. Defend Bastion against evil hordes, reclaim lost powers, rebuild ancient ruins, and adapt your tactics to reverse the siege. Shape your playstyle in this hero-strategy rogue-lite solo or co-op up to 3 players.

Why similar: Tower Defense 25.7%, RTS 20.5%, Co-op 16.2%, Post-apocalyptic 13%, Survival 11.4%

Build. Automate. Defend.

Why similar: Automation 22.9%, Tower Defense 22.1%, Base Building 18.9%, Resource Management 13.8%, Survival 7.5%

A sci-fi roomscale VR Tower Defense game. Strategize to destroy waves of rogue robots and assist the powerful turrets with a handheld drone. Build and collect resources and help evacuate your crew from the alien planet.

Why similar: Robots 26.2%, Tower Defense 20.4%, RTS 17.1%, Military 11.6%, Sci-fi 8.1%

Command distinct factions in a desperate struggle for power and resources in Tempest Rising - a classic RTS set on Earth after a nuclear war.

Why similar: RTS 55.9%, Base Building 18.1%, Strategy 15.9%, Military 5.1%, 3D 2.5%

Commander, customize and build your Mechanical Assault Skeleton Suit (M.A.S.S.) and lead the fight against an alien invasion bent on exterminating the human race. The fate of humanity is in your hands.

Why similar: Robots 50.1%, Post-apocalyptic 19.1%, Sci-fi 13.3%, Shooter 11.7%, Action 3.4%