Games like Outpost: Infinity Siege on Steam

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Alien Marauder

“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!

Similarity 65%
Price 16.79€
Rating 6.2
Release 17 Nov 2021

Meet Your Maker

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.

Similarity 59%
Price -41% 5.19€
Rating 7.0
Release 04 Apr 2023

Executive Assault

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.

Similarity 57%
Price 10.79€
Rating 8.1
Release 17 Jul 2015

Microtopia

Become the hive mind of a robot ant colony in Microtopia! Use pheromone trails to create, automate and optimize supply chains for your ants to follow. Collect resources, produce goods, feed your queen, grow your colony and fly out to expand the species!

Similarity 56%
Price -30% 13.99€
Rating 8.4
Release 18 Feb 2025

FOUNDRY

Build a factory optimized to perfection or an artistic masterpiece in an infinite voxel world. Mine and harvest resources, automate your ever-growing production lines and manage complex systems while researching your way to mechanical mastery in FOUNDRY.

Similarity 56%
Price 29.99€
Rating 7.9
Release 02 May 2024

United Penguin Kingdom

A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales. Enjoy the growth of your settlement, become the king, and lead the United Penguin Kingdom.

Similarity 55%
Price 14.79€
Rating 7.2
Release 09 Mar 2024

Desynced

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.

Similarity 55%
Price -32% 19.73€
Rating 7.9
Release 15 Aug 2023

Cliff Empire

After a nuclear war life on the surface became impossible. A 300m thick radioactive fog covered the Earth. We are looking for bold active people to manage the process of restoring life on Earth. Join!

Similarity 54%
Price 12.49€
Rating 8.4
Release 06 Aug 2019

Executive Assault 2

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.

Similarity 53%
Price 20.99€
Rating 8.0
Release 18 Oct 2023

Cosmic Trip

Cosmic Trip is an award-winning real-time strategy VR game. Build a base, command a flying drone army, and attack/defend hostile enemies on strange alien planets.

Similarity 53%
Price 19.99€
Rating 8.0
Release 24 May 2017

Out of Ammo

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.

Similarity 52%
Price 9.75€
Rating 7.9
Release 14 Sep 2016

Generation Zero®

Generation Zero is a stealth-action shooter where you wage guerilla warfare against lethal mechanical enemies. Explore a vast open world map inspired by the Swedish Cold War era, take part in the resistance alone or with up to three friends in seamless co-op.

Similarity 51%
Price 24.99€
Rating 7.1
Release 26 Mar 2019

The Colonists

Build a new home for your team of robots as they begin a new life for themselves on a distant planet where they can fulfil their ultimate dream: to be human.

Similarity 51%
Price 22.99€
Rating 8.1
Release 24 Oct 2018

Axon TD: Uprising - Tower Defense

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.

Similarity 51%
Price 18.70€
Rating 8.3
Release 27 Sep 2024

Eden Crafters

Embark on a journey of survival, crafting, and automation in Eden Crafters, a solo and co-op open-world game that challenges you to turn a hostile planet into a habitable haven for humanity. Temper the climate, create a breathable atmosphere, and turn toxic lakes into water: shape a new world!

Similarity 50%
Price 19.50€
Rating 8.3
Release 16 Oct 2024

Zombie Cure Lab

Construct a laboratory base full of machinery to cure zombies. Assign workers to gather and process resources, building up your economy. Defend against zombie attacks and convert them into your workforce. Research technologies to develop the final antidote and restore humanity.

Similarity 50%
Price -64% 9.12€
Rating 6.7
Release 07 Dec 2022

Legion TD 2 - Multiplayer Tower Defense

An infinitely replayable multiplayer and single-player tower defense. Defend against waves of enemies and destroy the enemy's king before they destroy yours. Legion TD 2 is a one-of-a-kind game of tactics, teamwork, and prediction. Party as 1-8 players.

Similarity 50%
Price 22.99€
Rating 8.4
Release 01 Oct 2021

War Robots VR: The Skirmish

War Robots VR: The Skirmish is a short, but highly immersive teaser-shooter for Oculus Rift and HTC Vive set in the universe of the War Robots franchise.

Similarity 50%
Price Free to play
Rating 7.5
Release 10 Aug 2017