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Demonium Illusion header art

Demonium Illusion

Demonium Illusion is a hardcore shooter where you'll face off against Demonium. Use your skills and reflexes to survive.

Steam Page
Release
May 31, 2026
62 days ago
Steam Reviews
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Search Google: Who developed Demonium Illusion?Developer scaleThe operating scale of the game's developer.
Search Google: Who published Demonium Illusion?Publisher scaleThe operating scale of the game's publisher.
Search Google: Is Demonium Illusion self-published or published by Vektor Technology?Publisher statusHow the game's publishing relationship is classified.
Search Google: How is Demonium Illusion and Vektor Technology funded?FundingThe known source of funding behind the game.
Search Google: Who controls the creative direction and IP for Demonium Illusion and Vektor Technology?Creative controlWho appears to retain creative control of the game.
Search Google: What is the release status of Demonium Illusion?Release statusWhether and how the game has been released.

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About the Game

Demonium Illusion is a merciless hardcore FPS inspired by the cult classic Devil Daggers.

You are alone. The Army of Demonium surrounds you.

Your only goal: survive as long as possible.

⚔️ WHAT AWAITS YOU:

- Endless waves of monsters, growing faster and deadlier every second

- Several unique bosses — each requiring its own tactics

- Death in one hit — no second chances, only reaction and skill

- Leaderboard — compete with other players for every extra second

- Dark atmosphere of a demonic world with red glow and threats from all sides

🔥 WHO IS THIS GAME FOR:

For those who love uncompromising hardcore. For record hunters.

For those who don't give up after the hundredth death.

Every attempt is a lesson. Every death is a step toward the record.

How long will you last?