Build rail networks, deploy battle trains, and combine turret enchantments into mobile fortresses. Defend a shattered steampunk world, uncover the floating city's dark truth, and face a choice between conviction and rebellion.

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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?

“The core gameplay of Loopstructor 2: Skyspine—a dynamic, track-based tower defense system—offers deep strategic complexity and build variety. We believe our perspective as developers is limited. Through Early Access, we aim to invite our core community to join us on this development journey. Your direct feedback will be the most valuable guide for balancing, deepening gameplay, and polishing the overall experience. Our goal is to collaborate with the community to forge this into a truly engaging and surprising strategic Roguelike.”

Approximately how long will this game be in Early Access?

“We anticipate the Early Access period to last approximately 6 to 12 months. The exact duration will largely depend on the volume and quality of feedback we receive from the community, as well as the scale of additional content we plan to implement during this phase. Our primary goal is to ensure that the game reaches a state of content, balance, and stability at Version 1.0 that satisfies both us and our players.”

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

“Compared to the Early Access version, our planned full release (v1.0) will include:
- Richer Content: More varieties of "Battle Trains," track "Enchantments," enemy types, boss encounters, and unlockable game modes or story chapters
- More Polished Systems: Thorough balance refinements based on player feedback, and potentially new core systems or mechanics
- Enhanced Experience: Comprehensive performance optimization, support for more control schemes (e.g., gamepads), and additional language localizations
- Greater Stability: Resolution of all major issues identified during Early Access for a smooth and stable experience
Our roadmap is flexible, and community input will directly influence the priority of new additions.”

What is the current state of the Early Access version?

“The current Early Access version features the complete core gameplay loop: players can freely design and build complex rail networks, deploy and upgrade multiple unique turrets and "Battle Trains," customize their defense strategy using a powerful "Enchantment" system, and face waves of minions and challenging bosses sent by the "Rail Gods." The game includes a full Roguelike progression system (e.g., meta-upgrades, random events, diverse build options) and offers several hours of initial replayable content. The foundational framework is stable, and we are ready to iterate and grow based on community collaboration.”

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

“Yes, we plan to appropriately increase the price when the game leaves Early Access and launches as Version 1.0.
This is to support the additional development costs incurred from the substantial content updates, system optimizations, and overall polish we commit to throughout the Early Access period. Players who purchase the game during Early Access will not only obtain it at a more favorable price but, more importantly, their support and feedback will directly help shape the game's future. We sincerely intend this as a way to reward our early supporters.”

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

“The community is our core partner in development. We plan to maintain close communication through:
- Official Steam Forum & Discord Community & Reddit: These will be our primary hubs for direct interaction, feedback collection, and announcements
- Regular Development Blogs: Sharing progress transparently via Steam News and social media, including design challenges and future update plans
- Dedicated Feedback & Suggestion Channels: We encourage players to submit bug reports, balance suggestions, or new content ideas in designated sections. We will regularly review, categorize, and discuss this invaluable input
- Player Testing & Surveys: For major new systems or changes, we may invite active community members to closed tests or conduct community polls
Our commitment is to listen earnestly, respond actively, and give community voices significant weight in our development decisions.”
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Download Loopstructor 2: Skyspine Demo

This game is not yet available on Steam

Planned Release Date: Q4 2026

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About This Game

Loopstructor 2: Skyspine is a steampunk tower defense game set in the wasteland left by the Sinking. As a Cohort Commander, fight ground-dwelling abominations, reclaim lost territory, and defend humanity's last aerial sanctuary.

Design your defense with rails

Build connected rail networks, deploy and upgrade battle trains, and combine their routes with turret enchantments. Adjust your layout and firepower to hold your ground against wave after wave of abominations.

Confront the truth behind the city

As the floating city's dark truth comes to light, face a moral choice between holding to your convictions and raising the banner of rebellion. What does the home you defend really stand for?

Find your own tactical build

Unlock different turrets, bases, and relics. Combine enchantments and upgrade paths, adapt to a changing battlefield, and discover new defensive strategies with every run.

Wishlist Loopstructor 2: Skyspine and prepare for the mission ahead.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS *: Windows 7 SP1 or newer
    • Processor: Dual Core 2.0 GHz or better
    • Memory: 16 GB RAM
    • Graphics: GTX 960 or higer
    • DirectX: Version 11
    • Network: Broadband Internet connection
    • Storage: 2 GB available space
    Recommended:
    • Requires a 64-bit processor and operating system
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.
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