All Games > Strategy Games > Fortified Space
Community Hub
Fortified Space
Seize control of hostile planets in this nostalgic space sim and tower defense hybrid inspired by classic Flash games. Fight for orbital supremacy in starship combat with railguns, turrets, and shields. Then descend to the surface to build a base, deploy defenses, and shred waves of enemies.

Sign in to add this item to your wishlist, follow it, or mark it as ignored

Features
Single-player
Steam Achievements
Steam Cloud
Family Sharing
Steam is learning about this game 
Languages:
Interface Full Audio Subtitles
English ✔ ✔ ✔

Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“I have a long list of features I would like to add, but I wanted to release the core game first and allow your feedback to help guide development. Your input will give me valuable new ideas and help me decide which existing ideas to prioritize. Also, as a solo developer, having the community involved is very helpful for finding and eliminating bugs and other issues inherent at this stage of development.”

Approximately how long will this game be in Early Access?

“The plan is to continuously develop the game in Early Access for 6 months - 1 year.”

How is the full version planned to differ from the Early Access version?

“A tentative Early Access Roadmap is already internally established and will be honed as your feedback suggests to me which types of features are most important. For now, I expect the full version to have more campaign missions, more unique mission types, more activities, unlockables tied to player rank, greater variety in enemies/weapons/defenses, and more. It is my hope that the planned content will breathe more life into the game's universe and enhance replayability.”

What is the current state of the Early Access version?

“The Early Access version is already a complete game with a full campaign and core features already implemented. Everything you see advertised on this Steam Page is in the game. There may be bugs and other issues, but the main purpose of using Early Access here is to give me time to add fun new features and improvements with your input. From my point of view, I am trying to squash bugs and add icing on the cake before a full 1.0 release.”

Will the game be priced differently during and after Early Access?

“The Early Access version will be a lower price than the full release version, as a thank you to those who chose to support development along the way.”

How are you planning on involving the Community in your development process?

“I will consider all suggestions and feedback for the future direction of the game. Since I am a solo developer, I can easily incorporate any ideas I enjoy because I do not have to consult with any sort of team. The easiest way to provide input would be using the Feedback button on the game's main menu.”
Read more

Download Fortified Space Demo

This game is not yet available on Steam

Planned Release Date: Mar 27, 2026

This game plans to unlock in approximately 1 day and 6 hours

Interested?
Add to your wishlist and get notified when it becomes available.
 
See all discussions

Report bugs and leave feedback for this game on the discussion boards

Reviews

“Fortified Space offers an unique blend within the strategy genre. The game alternates between intense space battles and surface missions where the objective changes completely…this change of scenery is one of the game's most interesting ideas. [Translated from Spanish]”
Kotaku (Español)

“When one indie developer couldn’t find the sci-fi game of his dreams, he built it himself...this is one of the most promising sci-fi indies of 2025.”
Fix Gaming Channel

“The game's presentation was interesting; it has that charming sci-fi Newgrounds Flash feel, but updated in terms of broad gameplay and requiring a strategic approach to clear the objectives.”
We Playtest Games

As Seen On

Demo Players Recommend Fortified Space

To see what players said about the demo, visit its separate Steam page by clicking "Learn More" in the green banner above.

About This Game

You are the captain of a Unified Earth Forces starship, leading daring combat missions deep into enemy territory.  Fight in space and on the ground as you spearhead the assault, establish vital footholds, and pave the way for Marine landing forces. Engage in ship-to-ship combat, build bases on planet surfaces, and shred enemies with turrets and your assault rifle alike.  Turn the tide in a war for humanity's survival.

Experience Intense Space Battles

Test your skills as a starship captain as you evade hostile fire, strafe alien cruisers, and escort allied ships during fleet battles.  Blast incoming missiles with your ship's point-defense turret and strike hard with your railguns.  Dominate the fight and secure victory.

Build and Defend Planetary Fortifications

Think strategically as you deploy barriers, turrets, gates, and barbed wire on hostile planets to safeguard against relentless waves of enemies.  Or, if it's been a long day, maybe you can just build a wall of turrets.  The enemy will get the message.  Each planet has unique characteristics, but the objective is almost always the same: create a secure zone to allow our Marines to land safely.  After reinforcements arrive and you've succeeded in your mission, you can resupply with unlimited materials to continue building. Keep coming back to the planet to work on your base and fight off enemies!

Explore Your Ship - Farm, Mine, Read, and Relax

Fortified Space offers more than just adrenaline-pumping combat.  Take a break from the fight to walk around your ship, talk to your crew, and read the news articles that update after each mission.  Gather materials for your next mission through asteroid mining, hydroponic farming, and composting.  You can even kick around a soccer ball or play a target-shooting arcade game.  

Explore Earth

Ready for shore leave?  Fly to Earth and explore the civic and cultural institutions in humanity's capital.  Don't forget to visit the Library of Earth to read about the Interplanetary War, Unified Earth Forces ships, and other interesting topics. Earth will be an area for continued growth during Early Access.

Report to your ship and prepare for departure.

Good hunting!

Special thanks to Richard Wei, MVP (Most Valuable Playtester)

System Requirements

    Minimum:
    • OS: Windows 10
    • Processor: AMD Ryzen 7 4700U
    • Memory: 6 GB RAM
    • Graphics: AMD Radeon
    • DirectX: Version 12
    • Storage: 5 GB available space
There are no reviews for this product

You can write your own review for this product to share your experience with the community. Use the area above the purchase buttons on this page to write your review.