BastionOS

BastionOS

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ABOUT THIS GAME

Brace for Impact in BastionOS

In BastionOS, players take on the role of a tower commander defending against relentless waves of mechanical enemies. You’ll select specific levels to engage in tactical warfare, directing your tower's artillery with precision. Every successful strike yields precious resources dropped by defeated foes. Are you ready to fortify your tower and strategize against the advancing machine army?

Tower Strategy: Rise Stronger After Every Fall

Your tower is your main defense, but it comes with an expiration date. No matter how strong your artillery, the inevitable fall is a part of the battlefield. However, you have the power to rebuild it even stronger than before. Fortifying your tower involves strategic planning, incorporating various weapons and upgrades to adapt to the escalating threats. Each decision impacts your survival.

Continuous Tech Development to Stay Ahead

Research is key in BastionOS. As you progress, you unlock new technologies, pushing the boundaries of what your tower can do. Each upgrade can significantly alter the dynamics of your defense, making it vital to stay on top of your technological game. The options for enhancing your tower's capabilities expand as you defend, keeping gameplay fresh and engaging.

Endless Waves Challenge Your Defense Skills

The relentless machine horde is not just a backdrop; it's a true test of your skills. As the waves escalate, so does the difficulty. You must adapt your strategies rapidly as new enemy types emerge, posing unique challenges. Mastering the balance between offense and defense is crucial, as every decision could lead to your downfall—or your triumph in securing humanity's last bastion.

Resource Management: The Key to Survival

Resource management plays an essential role in your survival. Acquiring and allocating those precious resources dropped by enemies can mean the difference between victory and defeat. With every tower upgrade costing valuable materials, prioritizing your needs will challenge your strategic thinking. What's worth upgrading first? Will it be your artillery or defenses?

The Fate of Humanity Rests on Your Shoulders

In BastionOS, there's a sense of urgency intertwined with every decision you make. You are humanity's last line of defense against an overwhelming machine army. The stakes are high, and the outcome uncertain. Will your reckless research and relentless drive hold back the tide of destruction? Only your tactical acumen will determine the fate of humanity as you stand firm at the Bastion.

Engaging Tactical Gameplay on PC

Available exclusively on PC, BastionOS delivers a compelling mix of strategic tower defense mechanics and tech development that keeps players engaged for hours. You'll face challenges that require not just quick reflexes but also thoughtful planning. With its blend of satisfying artillery action and resource management, this game stands as a strong addition to the tower defense genre.

PRICE FACTS

Price facts for BastionOS
Current best price£2.81 at Steam
All-time low£1.68 at Steam
All-time low dateApril 2026
Last 30 daysUp 67%

FREQUENTLY ASKED QUESTIONS

What platforms is BastionOS on?

BastionOS is available on PC.

When was BastionOS released?

BastionOS was released on April 28, 2026.

How much does BastionOS cost?

The current lowest price for BastionOS is £2.81 at Steam.

What is the lowest BastionOS has ever been?

The historical low price for BastionOS is £1.68.

SteamSteamOfficial
£2.81
1mo ago
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GAME INFO

Metacritic--
Steam4.9/5 · 128 reviews
Release2026-04-28

LANGUAGES

EnglishJapaneseArabicSimplified ChineseTurkish

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